Threat Database Trojans Trojan.Kryptik.FRK

Trojan.Kryptik.FRK

By CagedTech in Trojans

Analysis Report

General information

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

Known Samples

MD5: 4e3a1803b7438dcdce5d7a5309711e55
SHA1: 7a5bcc33b9f68ad04ec1fb5eeff69a0ef1541bff
SHA256: 593DFC8C2472298146459E890819A18D2B3E40FF0598B7EC6A700B497C0756C8
File Size: 3.15 MB, 3153920 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have security information
  • File has TLS information
  • File is 32-bit executable
  • 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 Icons

Windows PE Version Information

Name Value
Company Name Synaptics
File Description Synaptics Pointing Device Driver
File Version 1.0.0.4
Product Name Synaptics Pointing Device Driver
Product Version 1.0.0.0

File Traits

  • HighEntropy
  • x86

Files Modified

File Attributes
\device\namedpipe\gmdasllogger Generic Write,Read Attributes
c:\programdata\synaptics Synchronize,Write Attributes
c:\programdata\synaptics\rcx49d2.tmp Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\programdata\synaptics\synaptics.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\programdata\synaptics\synaptics.exe Synchronize,Write Attributes
c:\programdata\synaptics\synaptics.exe Synchronize,Write Data
c:\users\user\appdata\local\temp\71cgkgh.ini Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\roaming\winsl Synchronize,Write Attributes
c:\users\user\appdata\roaming\winsl\l8\16\2026 Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\downloads\._cache_7a5bcc33b9f68ad04ec1fb5eeff69a0ef1541bff_0003153920 Generic Read,Write Data,Write Attributes,Write extended,Append data
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c:\users\user\downloads\._cache_7a5bcc33b9f68ad04ec1fb5eeff69a0ef1541bff_0003153920 Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\explorer::slowcontextmenuentries `$�!�:i��+00��� Gs]XM���"�2��FXD�':D��exA-��LG=�A��J� �C� RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer::slowcontextmenuentries `$�!�:i��+00��� Gs]XM���"�2��FXD�':D��exA-����n����<��� RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer::slowcontextmenuentries `$�!�:i��+00��� Gs]XM���"�2��FXD�':D��exA-����n����<��� RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �n3 �v��������#�(�1`1�1HO1�D9ߔ@V�A��H[uR20_�z`�2b"hk`k�qo�w�n{b�{�=�P�������������T��Ǐ�T����T��T��T��Dt�T��m�Ù�����=��$�>�8წ���V��&M�=�S/�"zLB1_M�>T� RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\windows\currentversion\run::synaptics pointing device driver C:\ProgramData\Synaptics\Synaptics.exe RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\explorer::slowcontextmenuentries `$�!�:i��+00��� Gs]XM���"�2��FXN:���3B��SWsԄI����n����<��� RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
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HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 鴶ȁ獖} RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �n9 �v����������#�(�1`1�1HO1�D9ߔ@V�A��H[uR20_�z`�2b"hk`k�qo�w�n{b�{�=�P������7�M���������T��Ǐ�T����T��T��T��Dt�T��m�Ù��IV����=��$�>�8წ���V��&M�(!��j� RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �n: �v����������#�(�1`1�1HO1�D9ߔ@V�A��H[uR20_�z`�2b"hk`k�qo�r�7w�n{b�{�=�P������7�M���������T��Ǐ�T����T��T��T��Dt�T��m�Ù��IV����=��$�>�8წ���V��&M�(!��j RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �n: �v����������#�(�1`1�1HO1�D9ߔ@V�A��H[uR20_�z`�2b"hk`k�qo�r�7w�n{b�{�=�P������7�M���������T��Ǐ�T����T��T��T��Dt�T��m�Ù��IV����=��$�>�8წ���V��&M�(!��j RegNtPreCreateKey

Windows API Usage

Category API
Service Control
  • OpenSCManager
Process Shell Execute
  • ShellExecuteEx
Anti Debug
  • IsDebuggerPresent
Process Manipulation Evasion
  • NtUnmapViewOfSection
Network Winsock2
  • WSAStartup
  • WSAttemptAutodialName
User Data Access
  • GetUserObjectInformation
Network Winhttp
  • WinHttpOpen
Network Wininet
  • InternetOpen
  • InternetOpenUrl
  • InternetReadFile
Network Winsock
  • bind
  • closesocket
  • gethostbyname
  • getsockname
  • socket

Shell Command Execution

runas c:\users\user\downloads\._cache_7a5bcc33b9f68ad04ec1fb5eeff69a0ef1541bff_0003153920
runas C:\ProgramData\Synaptics\Synaptics.exe InjUpdate