darkcomet | ea5c1ca56477a08c4167692518ba413dccd4324b074b2480197d64d755a2b960

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 17:46

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General

Target

e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Size

16.6MB
MD5

e78c0891b24f900206dafbadae9c5328
SHA1

0d6f5c6067d91a2dfbc866a0413fcf6a9d46d3ee
SHA256

ea5c1ca56477a08c4167692518ba413dccd4324b074b2480197d64d755a2b960
SHA512

ab1aeaf9cfed2ed71ec26c65a81022793fc80812e9cb012e3f33da5214b4610f9f4826c30bfecd012bcf945102fc3a5abe34fd6c14d1ec96e7d7fb4e677d323a
SSDEEP

196608:VQ3M+06ySEoFc1je68GysIdcpdigxFIcx0S46nIh:VaNySEGcpe67ysIdATx54Jh

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

fugax.bounceme.net:1604

Mutex

DC_MUTEX-MNB51GL

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
RxVJE1qvAvCU
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1828	AVSVIDEOCONVERTER.EXE
3232	msdcsc.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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 4 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AVSVIDEOCONVERTER.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3232	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeSecurityPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeBackupPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeRestorePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeShutdownPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeDebugPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeUndockPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: 33	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: 34	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: 35	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: 36	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3232	msdcsc.exe
Token: SeSecurityPrivilege	3232	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3232	msdcsc.exe
Token: SeLoadDriverPrivilege	3232	msdcsc.exe
Token: SeSystemProfilePrivilege	3232	msdcsc.exe
Token: SeSystemtimePrivilege	3232	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3232	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3232	msdcsc.exe
Token: SeCreatePagefilePrivilege	3232	msdcsc.exe
Token: SeBackupPrivilege	3232	msdcsc.exe
Token: SeRestorePrivilege	3232	msdcsc.exe
Token: SeShutdownPrivilege	3232	msdcsc.exe
Token: SeDebugPrivilege	3232	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3232	msdcsc.exe
Token: SeChangeNotifyPrivilege	3232	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3232	msdcsc.exe
Token: SeUndockPrivilege	3232	msdcsc.exe
Token: SeManageVolumePrivilege	3232	msdcsc.exe
Token: SeImpersonatePrivilege	3232	msdcsc.exe
Token: SeCreateGlobalPrivilege	3232	msdcsc.exe
Token: 33	3232	msdcsc.exe
Token: 34	3232	msdcsc.exe
Token: 35	3232	msdcsc.exe
Token: 36	3232	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3232	msdcsc.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 1828	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	82
PID 1796 wrote to memory of 1828	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	82
PID 1796 wrote to memory of 1828	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	82
PID 1796 wrote to memory of 3232	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	83
PID 1796 wrote to memory of 3232	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	83
PID 1796 wrote to memory of 3232	1796	e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe	83
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84
PID 3232 wrote to memory of 2908	3232	msdcsc.exe	84

C:\Users\Admin\AppData\Local\Temp\e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e78c0891b24f900206dafbadae9c5328_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Users\Admin\AppData\Local\Temp\AVSVIDEOCONVERTER.EXE
  "C:\Users\Admin\AppData\Local\Temp\AVSVIDEOCONVERTER.EXE"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1828
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3232
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2908

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:\Users\Admin\AppData\Local\Temp\AVSVIDEOCONVERTER.EXE

Filesize
16.0MB

MD5
6b4983067b6bea178fdaabf8e565ffd9

SHA1
e782a8655bd41a29c3e3b12f9c12bced26d6dfe9

SHA256
317abde542a00e2988850e0d3125ef895c9bf0f7ea504a62afcbadef51c4702c

SHA512
ce0904c06ae893d60e10633ac1ad9a435bdbd5fd88d3c3fe1f336fa9be1384ee9605e57c7f49aa841378e43aab3c6de721d6e0b2441b93ed4bd06344bb0a3c34

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
16.6MB

MD5
e78c0891b24f900206dafbadae9c5328

SHA1
0d6f5c6067d91a2dfbc866a0413fcf6a9d46d3ee

SHA256
ea5c1ca56477a08c4167692518ba413dccd4324b074b2480197d64d755a2b960

SHA512
ab1aeaf9cfed2ed71ec26c65a81022793fc80812e9cb012e3f33da5214b4610f9f4826c30bfecd012bcf945102fc3a5abe34fd6c14d1ec96e7d7fb4e677d323a

Download Submit
memory/1796-0-0x00000000033B0000-0x00000000033B1000-memory.dmp

Filesize
4KB

Download
memory/1796-75-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/1828-14-0x0000000000400000-0x0000000001409000-memory.dmp

Filesize
16.0MB

Download
memory/1828-15-0x0000000001A20000-0x0000000001A21000-memory.dmp

Filesize
4KB

Download
memory/1828-76-0x0000000000400000-0x0000000001409000-memory.dmp

Filesize
16.0MB

Download
memory/2908-74-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/3232-79-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-84-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-77-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-80-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-81-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-82-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-83-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-78-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-85-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-86-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-87-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-88-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-89-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download
memory/3232-90-0x0000000000400000-0x00000000014AF000-memory.dmp

Filesize
16.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads