darkcomet | b41f5d22552ebb322c71f0eeb7d50092076cf2909aad2b7600b62c2189faf6a5

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 18:22

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General

Target

703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Size

758KB
MD5

703d925fc6a6f241142e8f1bb4b6fc32
SHA1

fc13ff6c6850e2899279b88c50a3f0171b78c40a
SHA256

b41f5d22552ebb322c71f0eeb7d50092076cf2909aad2b7600b62c2189faf6a5
SHA512

836c5970ce4f62ca201141a38188c072779d154845b5ac11ea4b3b0cb7ced7634d2f6755623a4f3dfb58a641bdff0c146b07d5f3755bdecc1b9e9f860a1c7c38
SSDEEP

12288:uXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452U2:wnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jm

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

213.140.194.52:1604

Mutex

DC_MUTEX-0WX3EPZ

Attributes

InstallPath
update\msdcsc.exe
gencode
MutLvZKoeehX
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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:\\update\\msdcsc.exe"	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2108	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\update\\msdcsc.exe"	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe

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 2 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	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeSecurityPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeBackupPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeRestorePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeShutdownPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeDebugPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeUndockPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: 33	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: 34	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: 35	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2108	msdcsc.exe
Token: SeSecurityPrivilege	2108	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2108	msdcsc.exe
Token: SeLoadDriverPrivilege	2108	msdcsc.exe
Token: SeSystemProfilePrivilege	2108	msdcsc.exe
Token: SeSystemtimePrivilege	2108	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2108	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2108	msdcsc.exe
Token: SeCreatePagefilePrivilege	2108	msdcsc.exe
Token: SeBackupPrivilege	2108	msdcsc.exe
Token: SeRestorePrivilege	2108	msdcsc.exe
Token: SeShutdownPrivilege	2108	msdcsc.exe
Token: SeDebugPrivilege	2108	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2108	msdcsc.exe
Token: SeChangeNotifyPrivilege	2108	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2108	msdcsc.exe
Token: SeUndockPrivilege	2108	msdcsc.exe
Token: SeManageVolumePrivilege	2108	msdcsc.exe
Token: SeImpersonatePrivilege	2108	msdcsc.exe
Token: SeCreateGlobalPrivilege	2108	msdcsc.exe
Token: 33	2108	msdcsc.exe
Token: 34	2108	msdcsc.exe
Token: 35	2108	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2108	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2108	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe	30
PID 1704 wrote to memory of 2108	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe	30
PID 1704 wrote to memory of 2108	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe	30
PID 1704 wrote to memory of 2108	1704	703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\703d925fc6a6f241142e8f1bb4b6fc32_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\update\msdcsc.exe
  "C:\update\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2108

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

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:\update\msdcsc.exe

Filesize
758KB

MD5
703d925fc6a6f241142e8f1bb4b6fc32

SHA1
fc13ff6c6850e2899279b88c50a3f0171b78c40a

SHA256
b41f5d22552ebb322c71f0eeb7d50092076cf2909aad2b7600b62c2189faf6a5

SHA512
836c5970ce4f62ca201141a38188c072779d154845b5ac11ea4b3b0cb7ced7634d2f6755623a4f3dfb58a641bdff0c146b07d5f3755bdecc1b9e9f860a1c7c38

Download Submit
memory/1704-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1704-11-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2108-12-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2108-13-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2108-14-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2108-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads