darkcomet | 60355d0c848a25430d1125477eaf90cc3870f7c0b683873a70c755062ea2d216

Analysis

max time kernel
141s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-10-2024 11:53

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General

Target

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Size

658KB
MD5

574b3ffd8a5fbcad036091bf9b7c44d1
SHA1

6913350d81f526e65efae4304ac4740bd7d92639
SHA256

60355d0c848a25430d1125477eaf90cc3870f7c0b683873a70c755062ea2d216
SHA512

eb6cf9550d01cafff9a97382aaa5363e5ea6433a3526e352a60703ef922435abdb1748b28df2460d2ac8fcf2f39f8ef6e36f44dbb89a55b4501712bb34fb8e60
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hd:+Z1xuVVjfFoynPaVBUR8f+kN10EBT

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

192.168.1.6:6665

Mutex

DC_MUTEX-GKSXZ4Q

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
qPdmaiRK7x77
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

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

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"	574b3ffd8a5fbcad036091bf9b7c44d1_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

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2660	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	574b3ffd8a5fbcad036091bf9b7c44d1_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

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeSecurityPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeBackupPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeRestorePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeShutdownPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeDebugPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeUndockPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: 33	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: 34	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: 35	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: 36	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2660	msdcsc.exe
Token: SeSecurityPrivilege	2660	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2660	msdcsc.exe
Token: SeLoadDriverPrivilege	2660	msdcsc.exe
Token: SeSystemProfilePrivilege	2660	msdcsc.exe
Token: SeSystemtimePrivilege	2660	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2660	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2660	msdcsc.exe
Token: SeCreatePagefilePrivilege	2660	msdcsc.exe
Token: SeBackupPrivilege	2660	msdcsc.exe
Token: SeRestorePrivilege	2660	msdcsc.exe
Token: SeShutdownPrivilege	2660	msdcsc.exe
Token: SeDebugPrivilege	2660	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2660	msdcsc.exe
Token: SeChangeNotifyPrivilege	2660	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2660	msdcsc.exe
Token: SeUndockPrivilege	2660	msdcsc.exe
Token: SeManageVolumePrivilege	2660	msdcsc.exe
Token: SeImpersonatePrivilege	2660	msdcsc.exe
Token: SeCreateGlobalPrivilege	2660	msdcsc.exe
Token: 33	2660	msdcsc.exe
Token: 34	2660	msdcsc.exe
Token: 35	2660	msdcsc.exe
Token: 36	2660	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2660	msdcsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 3428 wrote to memory of 2660	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe	86
PID 3428 wrote to memory of 2660	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe	86
PID 3428 wrote to memory of 2660	3428	574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe	86
PID 2660 wrote to memory of 628	2660	msdcsc.exe	88
PID 2660 wrote to memory of 628	2660	msdcsc.exe	88
PID 2660 wrote to memory of 628	2660	msdcsc.exe	88
PID 2660 wrote to memory of 3472	2660	msdcsc.exe	89
PID 2660 wrote to memory of 3472	2660	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\574b3ffd8a5fbcad036091bf9b7c44d1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\574b3ffd8a5fbcad036091bf9b7c44d1_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:3428
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:628
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:3472

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\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
574b3ffd8a5fbcad036091bf9b7c44d1

SHA1
6913350d81f526e65efae4304ac4740bd7d92639

SHA256
60355d0c848a25430d1125477eaf90cc3870f7c0b683873a70c755062ea2d216

SHA512
eb6cf9550d01cafff9a97382aaa5363e5ea6433a3526e352a60703ef922435abdb1748b28df2460d2ac8fcf2f39f8ef6e36f44dbb89a55b4501712bb34fb8e60

Download Submit
memory/2660-61-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/2660-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2660-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3428-0-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/3428-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download