darkcomet | 9689cb65fedbd0b1cfba22cb8dba66dd9ac2c5146c4d3a00fdb7fbc60bbe4788

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-12-2024 14:41

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General

Target

d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Size

302KB
MD5

d7927c417e3d4da2934641d84a008e83
SHA1

b0234c7be3321053b39b77855cfe99573240c39d
SHA256

9689cb65fedbd0b1cfba22cb8dba66dd9ac2c5146c4d3a00fdb7fbc60bbe4788
SHA512

208dc7b2724a8295198323d0e1eb7f076781ab965a9231a14482bf97bf5502ec2bb04448c50bfb724612516b359f1d4c18cfc7f6bb65aab4714b06080b55beca
SSDEEP

6144:aYhHdanjQ7VTDhT55QrHu1tIiKj+qOMlZQxdS/2sAUT6YIBa2pyyhD8Y+p:th9OjQ7VTDf5QryhKVtZQLS/u+jIBaZ5

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\system32\\winlogon.exe"	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\system32\\winlogon.exe"	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\system32\\winlogon.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3044-5-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-3-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-6-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-8-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-7-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-38-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/3044-40-0x0000000013140000-0x00000000131FC000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2576	3044	WerFault.exe	30

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	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeSecurityPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeBackupPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeRestorePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeShutdownPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeDebugPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeUndockPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: 33	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: 34	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
Token: 35	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 2828 wrote to memory of 3044	2828	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	30
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2764	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	31
PID 3044 wrote to memory of 2864	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	32
PID 3044 wrote to memory of 2864	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	32
PID 3044 wrote to memory of 2864	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	32
PID 3044 wrote to memory of 2864	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	32
PID 3044 wrote to memory of 2576	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	33
PID 3044 wrote to memory of 2576	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	33
PID 3044 wrote to memory of 2576	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	33
PID 3044 wrote to memory of 2576	3044	d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d7927c417e3d4da2934641d84a008e83_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Adds Run key to start application
  - 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:3044
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:2864
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 464
    3⤵
    - Program crash
    PID:2576

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

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2764-35-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2764-11-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2828-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2828-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3044-3-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-8-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-7-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-9-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/3044-6-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-5-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-38-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3044-39-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/3044-40-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads