darkcomet | 3fabe9cdeffaae27669588d8bb64ff5180395d242ca9df43505d226739a2848e

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 17:47

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General

Target

eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Size

821KB
MD5

eca9ce5db348469e8a35d1ba90afe9f3
SHA1

0f4e5eeb800071dbb77607be5e074edbb48ec29d
SHA256

3fabe9cdeffaae27669588d8bb64ff5180395d242ca9df43505d226739a2848e
SHA512

c91044c90f614f385cfd898281a48721ca855bb4b091da4a5fbb703079274bb9b4d20c0f3fd19c57af62d57080ad9875dba37d7c028c8b56cbb553accd09304e
SSDEEP

12288:UzCSurc/foCakvmVNp82o9j0i6HlICb+uhNJgjA/ErSKixCasylPxzsc9HkePaYX:UbuQoCqVNp82xJCCauh2A/EuKi1l7X

Score

10^/10

darkcomet discovery persistence rat trojan

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:\\Windows\\Taskmsg\\taskmsg.exe"	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	eca9ce5db348469e8a35d1ba90afe9f3_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	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2524	notepad.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskmsg = "C:\\Windows\\Taskmsg\\taskmsg.exe"	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskmsg = "C:\\Windows\\Taskmsg\\taskmsg.exe"	notepad.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1596 set thread context of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 2732 set thread context of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Taskmsg\	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
File created	C:\Windows\Taskmsg\taskmsg.exe	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
File opened for modification	C:\Windows\Taskmsg\taskmsg.exe	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
File opened for modification	C:\Windows\Taskmsg\taskmsg.exe	notepad.exe

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	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	eca9ce5db348469e8a35d1ba90afe9f3_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	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeSecurityPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeBackupPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeRestorePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeShutdownPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeDebugPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeUndockPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: 33	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: 34	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
Token: 35	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
2772	explorer.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 1596 wrote to memory of 2732	1596	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	28
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 1548	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	29
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2772	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	30
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31
PID 2732 wrote to memory of 2524	2732	eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\eca9ce5db348469e8a35d1ba90afe9f3_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - Checks BIOS information in registry
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Windows 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:2732
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:1548
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2772
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2524

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

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Downloads

C:\Windows\Taskmsg\taskmsg.exe

Filesize
821KB

MD5
0c4b8c6855a704bbba9843d965a90e72

SHA1
d05ab412f69d73ca1c913bfdec8fa3b7ad8bb6b7

SHA256
135e25a0a9646cf07249902e4f22351db4e4a6b792d9aea7938fa246b5cccf65

SHA512
7355063c773210a62b45f7b2139f8021525cec41224b74a04c0390cfa112534daf046d8cec1d1988735d9fc0269f009b90e9c4313f8bcfe137756ce9394f2f42

Download Submit
C:\Windows\Taskmsg\taskmsg.exe

Filesize
821KB

MD5
eca9ce5db348469e8a35d1ba90afe9f3

SHA1
0f4e5eeb800071dbb77607be5e074edbb48ec29d

SHA256
3fabe9cdeffaae27669588d8bb64ff5180395d242ca9df43505d226739a2848e

SHA512
c91044c90f614f385cfd898281a48721ca855bb4b091da4a5fbb703079274bb9b4d20c0f3fd19c57af62d57080ad9875dba37d7c028c8b56cbb553accd09304e

Download Submit
memory/1548-35-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1548-8-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2524-60-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2732-5-0x0000000013140000-0x00000000131F7000-memory.dmp

Filesize
732KB

Download
memory/2732-2-0x0000000013140000-0x00000000131F7000-memory.dmp

Filesize
732KB

Download
memory/2732-6-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2732-4-0x0000000013140000-0x00000000131F7000-memory.dmp

Filesize
732KB

Download
memory/2732-61-0x0000000013140000-0x00000000131F7000-memory.dmp

Filesize
732KB

Download
memory/2732-3-0x0000000013140000-0x00000000131F7000-memory.dmp

Filesize
732KB

Download
memory/2772-41-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2772-45-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2772-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-64-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2772-68-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads