Threat Database Trojans Trojan.Kryptik.ER

Trojan.Kryptik.ER

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 20,641
Threat Level: 80 % (High)
Infected Computers: 5
First Seen: January 25, 2022
Last Seen: February 6, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.Kryptik.ER
Signature status: No Signature

Known Samples

MD5: e08cb5d51e8002189fb2f31568e391b9
SHA1: c8b83aae9fb7980e5043377be3f4b3d491ae43cc
SHA256: B83D805C72BB2528475AC6CE124620E9D42AFB03DD92DD9AD17ADA09F620E8A5
File Size: 492.03 KB, 492032 bytes
MD5: 27d3f6776f2228a2d4d93763a9d86501
SHA1: bcd21830a0999660aa81db03f7bfd5909e342fa0
SHA256: 9905AEE6512E98872265106861B6314C1DD0A844ED88B5C481BD99264C634CD7
File Size: 492.03 KB, 492032 bytes

Windows Portable Executable Attributes

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

File Traits

  • 2+ executable sections
  • HighEntropy
  • No Version Info
  • ntdll
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 273
Potentially Malicious Blocks: 117
Whitelisted Blocks: 154
Unknown Blocks: 2

Visual Map

x x x x x x x x x x x 0 0 0 x x x x x x x 0 x x x x x x 0 0 x ? ? x 0 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 0 x x x x x x x x x x x x 0 x x x x x x x x 0 0 0 x x x 0 0 x x x x x x x x x x x x 0 x x x x x x x x x x x x x x x x x 0 x x 2 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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

  • Kryptik.ER

Files Modified

File Attributes
c:\programdata\bfebadafdffdec.exe Generic Write,Read Attributes
c:\programdata\bfebadafdffdec.exe Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\bfebadafdffdec::currentpath c:\users\user\downloads\c8b83aae9fb7980e5043377be3f4b3d491ae43cc_0000492032 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\run::bfebadafdffdec "C:\ProgramData\bfebadafdffdec.exe" RegNtPreCreateKey
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HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 RegNtPreCreateKey
HKCU\software\bfebadafdffdec::currentpath c:\users\user\downloads\bcd21830a0999660aa81db03f7bfd5909e342fa0_0000492032 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

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!NtAlpcQueryInformation
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtAlpcSetInformation
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtAssociateWaitCompletionPacket
  • ntdll.dll!NtCancelIoFileEx
  • ntdll.dll!NtCancelWaitCompletionPacket
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateKey
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtCreateTimer
  • ntdll.dll!NtCreateUserProcess
  • ntdll.dll!NtCreateWaitCompletionPacket
  • ntdll.dll!NtDeviceIoControlFile
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • 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!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
  • ntdll.dll!NtSetSecurityObject
  • ntdll.dll!NtSetTimerEx
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects

7 additional items are not displayed above.

Other Suspicious
  • AdjustTokenPrivileges
Process Shell Execute
  • CreateProcess
  • ShellExecuteEx
Process Manipulation Evasion
  • ReadProcessMemory

Shell Command Execution

open schtasks.exe /query /tn "bfeb5820-9643-42ad-a79f-071dff4d8e64c"
open schtasks.exe /create /sc minute /tn "bfeb5820-9643-42ad-a79f-071dff4d8e64c" /tr "C:\ProgramData\bfebadafdffdec.exe"
C:\Windows\System32\schtasks.exe "C:\Windows\System32\schtasks.exe" /query /tn "bfeb5820-9643-42ad-a79f-071dff4d8e64c"
C:\Windows\System32\schtasks.exe "C:\Windows\System32\schtasks.exe" /create /sc minute /tn "bfeb5820-9643-42ad-a79f-071dff4d8e64c" /tr "C:\ProgramData\bfebadafdffdec.exe"

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