darkcomet | 3227cae1a471714861d7a829dfad41864a8912d22e31e868f97fe6992d9696f3

General

Target

69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe
Size

676KB
MD5

69d46bb3e24ed8003e43baa9ffefd1e4
SHA1

72bbf6c2ca6d3da14be6c25873b555f42ca0d4ef
SHA256

3227cae1a471714861d7a829dfad41864a8912d22e31e868f97fe6992d9696f3
SHA512

d7670fb35f303b2b728826928cdfd598294b8d491e1e46b2b66804d8e9eaae8a29e31f5967bfe01cf08d1fafb8766f58c0e37585c117f930980ebbd5b0cbe1f3
SSDEEP

12288:vm361ax3BPhK9Eu7PT9rUmvgDKvN49AL9iwYphpE9bFtx1X9GMc958CvRRHeNKt7:e3sax3DkEmPRhgSmAxipfpibFtx1X9Gl

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

thewhitewox.no-ip.org:1604

Mutex

DC_MUTEX-778GBC1

Attributes

gencode
2c39c74w4f7B
install
false
offline_keylogger
true
persistence
false

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2740	winini.exe
1056	cvtres.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Live = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winini.exe"	winini.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 1056	2740	winini.exe	87

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 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	69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winini.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	winini.exe
Token: SeIncreaseQuotaPrivilege	1056	cvtres.exe
Token: SeSecurityPrivilege	1056	cvtres.exe
Token: SeTakeOwnershipPrivilege	1056	cvtres.exe
Token: SeLoadDriverPrivilege	1056	cvtres.exe
Token: SeSystemProfilePrivilege	1056	cvtres.exe
Token: SeSystemtimePrivilege	1056	cvtres.exe
Token: SeProfSingleProcessPrivilege	1056	cvtres.exe
Token: SeIncBasePriorityPrivilege	1056	cvtres.exe
Token: SeCreatePagefilePrivilege	1056	cvtres.exe
Token: SeBackupPrivilege	1056	cvtres.exe
Token: SeRestorePrivilege	1056	cvtres.exe
Token: SeShutdownPrivilege	1056	cvtres.exe
Token: SeDebugPrivilege	1056	cvtres.exe
Token: SeSystemEnvironmentPrivilege	1056	cvtres.exe
Token: SeChangeNotifyPrivilege	1056	cvtres.exe
Token: SeRemoteShutdownPrivilege	1056	cvtres.exe
Token: SeUndockPrivilege	1056	cvtres.exe
Token: SeManageVolumePrivilege	1056	cvtres.exe
Token: SeImpersonatePrivilege	1056	cvtres.exe
Token: SeCreateGlobalPrivilege	1056	cvtres.exe
Token: 33	1056	cvtres.exe
Token: 34	1056	cvtres.exe
Token: 35	1056	cvtres.exe
Token: 36	1056	cvtres.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1056	cvtres.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 2740	432	69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe	86
PID 432 wrote to memory of 2740	432	69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe	86
PID 432 wrote to memory of 2740	432	69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe	86
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87
PID 2740 wrote to memory of 1056	2740	winini.exe	87

C:\Users\Admin\AppData\Local\Temp\69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\69d46bb3e24ed8003e43baa9ffefd1e4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432
- C:\Users\Admin\AppData\Local\Temp\winini.exe
  "C:\Users\Admin\AppData\Local\Temp\winini.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\cvtres.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\winini.exe

Filesize
446KB

MD5
aefca00a6627d572c031b3abc6be98e9

SHA1
568ad2f7678bd3a9708bde22cc7bd56e9f61ff99

SHA256
2d1a831af3fc939ecc2436127dc15f7e375f3bce076a081421391a1cbf1030da

SHA512
cbceceab01ca7aa08381220f02a76cae07c4923f580a8bcd27706a6664a94f9158d74a444c89ad7f4397df0d38b0ffd659a88c0889d6d7846ee93e06bc9ad6e5

Download Submit
memory/432-1-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/432-2-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/432-12-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/432-0-0x0000000074C72000-0x0000000074C73000-memory.dmp

Filesize
4KB

Download
memory/1056-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-27-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/1056-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1056-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2740-13-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/2740-14-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/2740-26-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download
memory/2740-16-0x0000000074C70000-0x0000000075221000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads