darkcomet | 4206686e59c27aab811e3a99d306188f57a8f68d100538a0f7d7576f5d95a99a

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Systemtemp\\svcnhost32"	CryptedFile.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	CryptedFile.exe

Executes dropped EXE 2 IoCs

pid	Process
2128	CryptedFile.exe
2864	CryptedFile.exe

Loads dropped DLL 2 IoCs

pid	Process
2128	CryptedFile.exe
2128	CryptedFile.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\svcnhost32 = "C:\\Systemtemp\\svcnhost32"	CryptedFile.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\svcnhost32 = "C:\\Systemtemp\\svcnhost32"	notepad.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 2864	2128	CryptedFile.exe	33
PID 2864 set thread context of 728	2864	CryptedFile.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	CryptedFile.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CryptedFile.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.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\Identifier	CryptedFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	CryptedFile.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	CryptedFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	CryptedFile.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	CryptedFile.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000d854e951ecdca4792ad3aea80f03551000000000200000000001066000000010000200000007f08e353ac8118056c6b93efc08f0e7e6a730b2f868c65ccc20d6dbb8f9bda6a000000000e800000000200002000000026ea4bd469afa9c11a60cdd61d1855376c7a986b4d64b9070f436c03ee8bcfa1200000007f2ea31807ee00e051bbf04a46c5daa23cc676e69298ee80009c8807fb2ffba440000000a7bebe0a1a54599ac94ef913e8cdb6dc2c438ae5b524358a3f3ed3a069b81e31e27196659820d9084450ed783a2797ade9fc30f551b8952a67444a7040e44378	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C23F59A1-7B15-11EF-8B76-DA2B18D38280} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "433413753"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60c2e999220fdb01	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	CryptedFile.exe
Token: SeIncreaseQuotaPrivilege	2864	CryptedFile.exe
Token: SeSecurityPrivilege	2864	CryptedFile.exe
Token: SeTakeOwnershipPrivilege	2864	CryptedFile.exe
Token: SeLoadDriverPrivilege	2864	CryptedFile.exe
Token: SeSystemProfilePrivilege	2864	CryptedFile.exe
Token: SeSystemtimePrivilege	2864	CryptedFile.exe
Token: SeProfSingleProcessPrivilege	2864	CryptedFile.exe
Token: SeIncBasePriorityPrivilege	2864	CryptedFile.exe
Token: SeCreatePagefilePrivilege	2864	CryptedFile.exe
Token: SeBackupPrivilege	2864	CryptedFile.exe
Token: SeRestorePrivilege	2864	CryptedFile.exe
Token: SeShutdownPrivilege	2864	CryptedFile.exe
Token: SeDebugPrivilege	2864	CryptedFile.exe
Token: SeSystemEnvironmentPrivilege	2864	CryptedFile.exe
Token: SeChangeNotifyPrivilege	2864	CryptedFile.exe
Token: SeRemoteShutdownPrivilege	2864	CryptedFile.exe
Token: SeUndockPrivilege	2864	CryptedFile.exe
Token: SeManageVolumePrivilege	2864	CryptedFile.exe
Token: SeImpersonatePrivilege	2864	CryptedFile.exe
Token: SeCreateGlobalPrivilege	2864	CryptedFile.exe
Token: 33	2864	CryptedFile.exe
Token: 34	2864	CryptedFile.exe
Token: 35	2864	CryptedFile.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1468	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1468	iexplore.exe
1468	iexplore.exe
3020	IEXPLORE.EXE
3020	IEXPLORE.EXE
3020	IEXPLORE.EXE
3020	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 2128	1232	f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe	30
PID 1232 wrote to memory of 2128	1232	f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe	30
PID 1232 wrote to memory of 2128	1232	f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe	30
PID 1232 wrote to memory of 2128	1232	f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe	30
PID 2128 wrote to memory of 2708	2128	CryptedFile.exe	32
PID 2128 wrote to memory of 2708	2128	CryptedFile.exe	32
PID 2128 wrote to memory of 2708	2128	CryptedFile.exe	32
PID 2128 wrote to memory of 2708	2128	CryptedFile.exe	32
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2128 wrote to memory of 2864	2128	CryptedFile.exe	33
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 2916	2864	CryptedFile.exe	34
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 2864 wrote to memory of 728	2864	CryptedFile.exe	35
PID 728 wrote to memory of 1468	728	explorer.exe	36
PID 728 wrote to memory of 1468	728	explorer.exe	36
PID 728 wrote to memory of 1468	728	explorer.exe	36
PID 728 wrote to memory of 1468	728	explorer.exe	36
PID 1468 wrote to memory of 3020	1468	iexplore.exe	37
PID 1468 wrote to memory of 3020	1468	iexplore.exe	37
PID 1468 wrote to memory of 3020	1468	iexplore.exe	37
PID 1468 wrote to memory of 3020	1468	iexplore.exe	37

C:\Users\Admin\AppData\Local\Temp\f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f591ad860bcf1201e8ded5774e8249a2_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\CryptedFile.exe
  "C:\Users\Admin\AppData\Local\Temp\CryptedFile.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Users\Admin\AppData\Local\Temp\CryptedFile.exe
    CryptedFile.exe
    3⤵
    PID:2708
- - C:\Users\Admin\AppData\Local\Temp\CryptedFile.exe
    CryptedFile.exe
    3⤵
    - Modifies WinLogon for persistence
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - 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:2864
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2916
  - - C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:728
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=explorer.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1468
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1468 CREDAT:275457 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery