Threat Database Trojans Trojan.Agent.KPSR

Trojan.Agent.KPSR

By CagedTech in Trojans

Analysis Report

General information

Family Name: Trojan.Agent.KPSR
Signature status: No Signature

Known Samples

MD5: cdb3544e10f0109dd8830e17cf771620
SHA1: 1c34dc24fb9528ffac88b13b28273c2db34e68df
SHA256: 7BB5EAAE6187FC61A5F880CAC4C4FD98A29351A3220710240EC9281448C9DA0E
File Size: 88.06 KB, 88064 bytes
MD5: df71837d112be8ba89308ebe499a6f87
SHA1: 95cb786b9657b4a376142998ddff819274bea2d7
SHA256: 1FCA1C1D91A67F9BF4702FC90104F855F7B3A258E19C1E96C993F638875BD805
File Size: 87.04 KB, 87040 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File has TLS information
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
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  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • GetConsoleWindow
  • No Version Info
  • x64

Block Information

Total Blocks: 148
Potentially Malicious Blocks: 31
Whitelisted Blocks: 114
Unknown Blocks: 3

Visual Map

0 0 0 0 0 0 0 0 0 0 ? x x ? ? 0 0 0 0 0 0 x 0 0 0 0 0 0 0 x x 0 0 0 x x x x 0 0 x 0 0 0 0 x x x x x 0 0 0 0 x 0 x x 0 0 x x 0 x 0 x 0 x x x 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 x x x x x 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Agent.KPSR
  • Trojan.Agent.Gen.IM
  • Trojan.Agent.Gen.IW
  • Trojan.Agent.Gen.LV

Files Modified

File Attributes
\device\namedpipe\discord-ipc-0 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-1 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-2 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-3 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-4 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-5 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-6 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-7 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-8 Generic Read,Write Data,Write Attributes,Write extended,Append data
\device\namedpipe\discord-ipc-9 Generic Read,Write Data,Write Attributes,Write extended,Append data
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\device\namedpipe\srvsvc Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\roaming\microsoft\systemcache\runtimebroker.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\roaming\microsoft\systemcache\runtimebroker.exe Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\explorer::slowcontextmenuentries RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\runonce::systemcacheupdate cmd /c start /min "" "C:\Users\Okszazwa\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe" RegNtPreCreateKey
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HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\runonce::systemcacheupdate cmd /c start /min "" "C:\Users\Okszazwa\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe" RegNtPreCreateKey
HKCU\discord-1334595983404699718:: URL:Run game 1334595983404699718 protocol RegNtPreCreateKey
HKCU\discord-1334595983404699718::url protocol RegNtPreCreateKey
HKCU\discord-1334595983404699718\defaulticon:: C:\Users\Okszazwa\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe RegNtPreCreateKey
HKCU\discord-1334595983404699718\shell\open\command:: C:\Users\Okszazwa\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ߌ듢ǜ RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\runonce::systemcacheupdate C:\Users\Godtekpk\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKCU\discord-1334595983404699718\defaulticon:: C:\Users\Godtekpk\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe RegNtPreCreateKey
HKCU\discord-1334595983404699718\shell\open\command:: C:\Users\Godtekpk\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe RegNtPreCreateKey

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAccessCheckByType
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcAcceptConnectPort
  • ntdll.dll!NtAlpcConnectPort
  • ntdll.dll!NtAlpcConnectPortEx
  • ntdll.dll!NtAlpcCreatePort
  • ntdll.dll!NtAlpcCreatePortSection
  • ntdll.dll!NtAlpcCreateSectionView
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  • ntdll.dll!NtAlpcCreateSecurityContext
  • ntdll.dll!NtAlpcDeleteSecurityContext
  • ntdll.dll!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcQueryInformationMessage
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAreMappedFilesTheSame
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelIoFileEx
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateIoCompletion
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer
  • ntdll.dll!NtCreateTimer2
  • ntdll.dll!NtCreateUserProcess
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtCreateWorkerFactory
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtFsControlFile
  • ntdll.dll!NtImpersonateAnonymousToken
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtNotifyChangeKey
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenSymbolicLinkObject
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtPowerInformation
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFile
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryEvent
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryObject
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySymbolicLinkObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationObject
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory

18 additional items are not displayed above.

Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • ShellExecute
  • ShellExecuteEx
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetUserObjectInformation

Shell Command Execution

(NULL) C:\Users\Okszazwa\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe
open C:\Users\Godtekpk\AppData\Roaming\Microsoft\SystemCache\RuntimeBroker.exe

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