darkcomet | d2fae7ef9a11f7775d69a40f704e276966680da6f3789a5babfcd18fd943529a

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\syshost.exe"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\syshost = "C:\\Windows\\system32\\syshost.exe"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\syshost.exe	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\syshost.exe	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4668 set thread context of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 set thread context of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 1360 set thread context of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/684-11-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-13-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-17-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-18-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-19-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-20-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-21-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/684-28-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2704	684	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Modifies Internet Explorer settings 1 TTPs 5 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\SuggestionsURLFallback = "http://www.google.com/cse?cx=partner-pub-9588033570232632:rhmyra-cwbb&q={searchTerms}"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\URL = "http://www.google.com/cse?cx=partner-pub-9588033570232632:rhmyra-cwbb&q={searchTerms}"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\DisplayName = "Google"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "file://localhost/C:/www.google.com.htm"	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeSecurityPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeSystemtimePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeBackupPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeRestorePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeShutdownPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeDebugPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeUndockPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeManageVolumePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeImpersonatePrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: 33	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: 34	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: 35	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
Token: 36	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 1360	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	83
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2848	4668	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	84
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 1360 wrote to memory of 684	1360	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	85
PID 684 wrote to memory of 1576	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	86
PID 684 wrote to memory of 1576	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	86
PID 684 wrote to memory of 1576	684	e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
    C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
    3⤵
    - Modifies WinLogon for persistence
    - Checks BIOS information in registry
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:684
  - - C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      4⤵
      PID:1576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 860
      4⤵
      Program crash
      PID:2704
- C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e61acbbe8d56d25353e59ad455fc2d0f_JaffaCakes118.exe
  2⤵
  - Modifies Internet Explorer settings
  - Modifies Internet Explorer start page
  PID:2848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 684 -ip 684
1⤵
PID:1200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

4

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System