darkcomet | bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9

Analysis

max time kernel
150s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 19:42

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General

Target

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Size

756KB
MD5

e2ef2e2e93e39f45d6c32e320e51f878
SHA1

441dabb1e1e3ea6c6106d3c7a9d1f1ab3686b6b1
SHA256

bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9
SHA512

bafe74da5bbdbf8d6ef0045f2a583c0976f2be3ff954dd163c8d533611eb4b6abaa002195dcd3cf722690858437a991bb5c2d671f4bebbaadb642c71cd75317d
SSDEEP

12288:C9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hmbR:uZ1xuVVjfFoynPaVBUR8f+kN10EB4F

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-2BVSTNT

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
A3bMQgDXsfWU
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"	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
4064	attrib.exe
2552	attrib.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	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3624	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\\Documents\\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\\Documents\\MSDCSC\\msdcsc.exe"	e2ef2e2e93e39f45d6c32e320e51f878_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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3624	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSecurityPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeBackupPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeRestorePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeShutdownPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeDebugPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeUndockPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 33	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 34	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 35	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 36	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3624	msdcsc.exe
Token: SeSecurityPrivilege	3624	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3624	msdcsc.exe
Token: SeLoadDriverPrivilege	3624	msdcsc.exe
Token: SeSystemProfilePrivilege	3624	msdcsc.exe
Token: SeSystemtimePrivilege	3624	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3624	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3624	msdcsc.exe
Token: SeCreatePagefilePrivilege	3624	msdcsc.exe
Token: SeBackupPrivilege	3624	msdcsc.exe
Token: SeRestorePrivilege	3624	msdcsc.exe
Token: SeShutdownPrivilege	3624	msdcsc.exe
Token: SeDebugPrivilege	3624	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3624	msdcsc.exe
Token: SeChangeNotifyPrivilege	3624	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3624	msdcsc.exe
Token: SeUndockPrivilege	3624	msdcsc.exe
Token: SeManageVolumePrivilege	3624	msdcsc.exe
Token: SeImpersonatePrivilege	3624	msdcsc.exe
Token: SeCreateGlobalPrivilege	3624	msdcsc.exe
Token: 33	3624	msdcsc.exe
Token: 34	3624	msdcsc.exe
Token: 35	3624	msdcsc.exe
Token: 36	3624	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3624	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 696	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	82
PID 2228 wrote to memory of 696	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	82
PID 2228 wrote to memory of 696	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	82
PID 2228 wrote to memory of 4864	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	83
PID 2228 wrote to memory of 4864	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	83
PID 2228 wrote to memory of 4864	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	83
PID 696 wrote to memory of 4064	696	cmd.exe	86
PID 696 wrote to memory of 4064	696	cmd.exe	86
PID 696 wrote to memory of 4064	696	cmd.exe	86
PID 4864 wrote to memory of 2552	4864	cmd.exe	87
PID 4864 wrote to memory of 2552	4864	cmd.exe	87
PID 4864 wrote to memory of 2552	4864	cmd.exe	87
PID 2228 wrote to memory of 3624	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	88
PID 2228 wrote to memory of 3624	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	88
PID 2228 wrote to memory of 3624	2228	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	88
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89
PID 3624 wrote to memory of 3036	3624	msdcsc.exe	89

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4064	attrib.exe
2552	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_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:2228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:696
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2552
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Disables RegEdit via registry modification
  - 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:3624
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3036

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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
756KB

MD5
e2ef2e2e93e39f45d6c32e320e51f878

SHA1
441dabb1e1e3ea6c6106d3c7a9d1f1ab3686b6b1

SHA256
bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9

SHA512
bafe74da5bbdbf8d6ef0045f2a583c0976f2be3ff954dd163c8d533611eb4b6abaa002195dcd3cf722690858437a991bb5c2d671f4bebbaadb642c71cd75317d

Download Submit
memory/2228-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/2228-63-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3036-62-0x0000000001020000-0x0000000001021000-memory.dmp

Filesize
4KB

Download
memory/3624-61-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/3624-64-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/3624-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads