darkcomet | a5b6a5a91945f35f2489ee473e0effa1ff4838a18de47c4af3121926d296a7d1

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2025 17:21

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General

Target

JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Size

719KB
MD5

2df12d1179404ecf99091fc75f315837
SHA1

112cbe59057674cfa6b66c3524ba7ace48b0afad
SHA256

a5b6a5a91945f35f2489ee473e0effa1ff4838a18de47c4af3121926d296a7d1
SHA512

f6cb30884982f76283c506a4bc38e9cb63ea335efc99fa9980744f06f9e47aaf2159a66764de48d801df3e84ba22810c7ae8ba9c91e92ae3abe8cd01f8433069
SSDEEP

12288:gqdVQkLvAXIm/h0PJ1JGRwii53ho0VwFFct8MT/jifjcrjpTw:gmVQkLvAv0PJ1JGdaho0Vwc8O2bmxw

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-8BPSXEG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
QgNShfJAD75r
install
true
offline_keylogger
true
password
12345
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_2df12d1179404ecf99091fc75f315837.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe

Executes dropped EXE 2 IoCs

pid	Process
4024	msdcsc.exe
2368	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4376 set thread context of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4024 set thread context of 2368	4024	msdcsc.exe	84

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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeSecurityPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeTakeOwnershipPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeLoadDriverPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeSystemProfilePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeSystemtimePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeProfSingleProcessPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeIncBasePriorityPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeCreatePagefilePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeBackupPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeRestorePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeShutdownPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeDebugPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeSystemEnvironmentPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeChangeNotifyPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeRemoteShutdownPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeUndockPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeManageVolumePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeImpersonatePrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeCreateGlobalPrivilege	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: 33	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: 34	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: 35	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: 36	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
Token: SeIncreaseQuotaPrivilege	2368	msdcsc.exe
Token: SeSecurityPrivilege	2368	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2368	msdcsc.exe
Token: SeLoadDriverPrivilege	2368	msdcsc.exe
Token: SeSystemProfilePrivilege	2368	msdcsc.exe
Token: SeSystemtimePrivilege	2368	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2368	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2368	msdcsc.exe
Token: SeCreatePagefilePrivilege	2368	msdcsc.exe
Token: SeBackupPrivilege	2368	msdcsc.exe
Token: SeRestorePrivilege	2368	msdcsc.exe
Token: SeShutdownPrivilege	2368	msdcsc.exe
Token: SeDebugPrivilege	2368	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2368	msdcsc.exe
Token: SeChangeNotifyPrivilege	2368	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2368	msdcsc.exe
Token: SeUndockPrivilege	2368	msdcsc.exe
Token: SeManageVolumePrivilege	2368	msdcsc.exe
Token: SeImpersonatePrivilege	2368	msdcsc.exe
Token: SeCreateGlobalPrivilege	2368	msdcsc.exe
Token: 33	2368	msdcsc.exe
Token: 34	2368	msdcsc.exe
Token: 35	2368	msdcsc.exe
Token: 36	2368	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
4024	msdcsc.exe
2368	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 4376 wrote to memory of 3700	4376	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	82
PID 3700 wrote to memory of 4024	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	83
PID 3700 wrote to memory of 4024	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	83
PID 3700 wrote to memory of 4024	3700	JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe	83
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84
PID 4024 wrote to memory of 2368	4024	msdcsc.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2df12d1179404ecf99091fc75f315837.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3700
- - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4024
  - - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2368

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\MSDCSC\msdcsc.exe

Filesize
719KB

MD5
2df12d1179404ecf99091fc75f315837

SHA1
112cbe59057674cfa6b66c3524ba7ace48b0afad

SHA256
a5b6a5a91945f35f2489ee473e0effa1ff4838a18de47c4af3121926d296a7d1

SHA512
f6cb30884982f76283c506a4bc38e9cb63ea335efc99fa9980744f06f9e47aaf2159a66764de48d801df3e84ba22810c7ae8ba9c91e92ae3abe8cd01f8433069

Download Submit
memory/2368-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2368-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-2-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-6-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3700-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads