darkcomet | e959f60435cca2ae4975b01332aeba8ae4e51a0b09130700c8ed8141c676b5d3

Analysis

max time kernel
150s
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
19-10-2024 06:03

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General

Target

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Size

349KB
MD5

5b30ba2ee3983312f357f3db3a88cbae
SHA1

f7aff06afd941bdb543e2207b3512f5cf30128df
SHA256

e959f60435cca2ae4975b01332aeba8ae4e51a0b09130700c8ed8141c676b5d3
SHA512

04e085abdabbf96a94cfdcbbf39584e318df40134722862e2549a5e312c91c94d924d0d247a9bd6ce52601283850dd69c27b719121e4ad10b4de0c891cb28f49
SSDEEP

6144:AcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37Od/y:AcW7KEZlPzCy37+K

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

zeddnsour.zapto.org:1605

Mutex

DC_MUTEX-3KCU30P

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
e2mQibs06LB5
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

5b30ba2ee3983312f357f3db3a88cbae_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"	5b30ba2ee3983312f357f3db3a88cbae_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:

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
1556	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msdcsc.exe5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

UPX packed file 18 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/5068-0-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/files/0x0007000000023caf-6.dat	upx
behavioral2/memory/5068-64-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-65-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-67-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-68-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-69-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-70-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-71-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-72-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-73-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-74-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-75-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-76-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-77-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-78-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-79-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1556-80-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

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 3 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:

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exemsdcsc.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

Processes:

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeSecurityPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeSystemtimePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeBackupPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeRestorePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeShutdownPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeDebugPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeUndockPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeManageVolumePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeImpersonatePrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: 33	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: 34	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: 35	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: 36	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1556	msdcsc.exe
Token: SeSecurityPrivilege	1556	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1556	msdcsc.exe
Token: SeLoadDriverPrivilege	1556	msdcsc.exe
Token: SeSystemProfilePrivilege	1556	msdcsc.exe
Token: SeSystemtimePrivilege	1556	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1556	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1556	msdcsc.exe
Token: SeCreatePagefilePrivilege	1556	msdcsc.exe
Token: SeBackupPrivilege	1556	msdcsc.exe
Token: SeRestorePrivilege	1556	msdcsc.exe
Token: SeShutdownPrivilege	1556	msdcsc.exe
Token: SeDebugPrivilege	1556	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1556	msdcsc.exe
Token: SeChangeNotifyPrivilege	1556	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1556	msdcsc.exe
Token: SeUndockPrivilege	1556	msdcsc.exe
Token: SeManageVolumePrivilege	1556	msdcsc.exe
Token: SeImpersonatePrivilege	1556	msdcsc.exe
Token: SeCreateGlobalPrivilege	1556	msdcsc.exe
Token: 33	1556	msdcsc.exe
Token: 34	1556	msdcsc.exe
Token: 35	1556	msdcsc.exe
Token: 36	1556	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
1556	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 5068 wrote to memory of 1556	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe	87
PID 5068 wrote to memory of 1556	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe	87
PID 5068 wrote to memory of 1556	5068	5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe	87
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88
PID 1556 wrote to memory of 3060	1556	msdcsc.exe	88

C:\Users\Admin\AppData\Local\Temp\5b30ba2ee3983312f357f3db3a88cbae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5b30ba2ee3983312f357f3db3a88cbae_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:5068
- 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 use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3060

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

Replay Monitor

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Downloads

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

Filesize
349KB

MD5
5b30ba2ee3983312f357f3db3a88cbae

SHA1
f7aff06afd941bdb543e2207b3512f5cf30128df

SHA256
e959f60435cca2ae4975b01332aeba8ae4e51a0b09130700c8ed8141c676b5d3

SHA512
04e085abdabbf96a94cfdcbbf39584e318df40134722862e2549a5e312c91c94d924d0d247a9bd6ce52601283850dd69c27b719121e4ad10b4de0c891cb28f49

Download Submit
memory/1556-74-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-76-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-70-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-72-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-71-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-65-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-66-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1556-67-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-68-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-69-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-62-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1556-80-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-79-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-73-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-78-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-75-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1556-77-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/3060-63-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/5068-1-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/5068-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/5068-64-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download