darkcomet | 85ba062a27e6676eac9372b21535d56fd41e81589b313fc8dc021ddce8fb1a7c

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
06-05-2024 19:22

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General

Target

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Size

1.1MB
MD5

1e0009c45503ab8951da6ad01f038fdc
SHA1

d047797d47f3e53bf014632e21455105dd156f52
SHA256

85ba062a27e6676eac9372b21535d56fd41e81589b313fc8dc021ddce8fb1a7c
SHA512

ac84f5721b148fd14f39d4e231a35cb6fbaa961513c46dd0c308fdb24183d8e63ac37f9bd5687e9890366161036ccac32f94ab20689d7859135f1adb5ade24f6
SSDEEP

24576:JnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JddrqvRuLcKfYWlsm6572m:9ELbVMTrOq4lqvCcKf127z

Score

10^/10

darkcomet dawn persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Dawn

host7734.no-ip.biz:1452

Mutex

DC_MUTEX-LBA1P5C

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
F1CkNpxFkJt2
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:

1e0009c45503ab8951da6ad01f038fdc_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"	1e0009c45503ab8951da6ad01f038fdc_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:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
4604	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSecurityPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeBackupPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeRestorePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeShutdownPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeDebugPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeUndockPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 33	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 34	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 35	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 36	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4604	msdcsc.exe
Token: SeSecurityPrivilege	4604	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4604	msdcsc.exe
Token: SeLoadDriverPrivilege	4604	msdcsc.exe
Token: SeSystemProfilePrivilege	4604	msdcsc.exe
Token: SeSystemtimePrivilege	4604	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4604	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4604	msdcsc.exe
Token: SeCreatePagefilePrivilege	4604	msdcsc.exe
Token: SeBackupPrivilege	4604	msdcsc.exe
Token: SeRestorePrivilege	4604	msdcsc.exe
Token: SeShutdownPrivilege	4604	msdcsc.exe
Token: SeDebugPrivilege	4604	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4604	msdcsc.exe
Token: SeChangeNotifyPrivilege	4604	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4604	msdcsc.exe
Token: SeUndockPrivilege	4604	msdcsc.exe
Token: SeManageVolumePrivilege	4604	msdcsc.exe
Token: SeImpersonatePrivilege	4604	msdcsc.exe
Token: SeCreateGlobalPrivilege	4604	msdcsc.exe
Token: 33	4604	msdcsc.exe
Token: 34	4604	msdcsc.exe
Token: 35	4604	msdcsc.exe
Token: 36	4604	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
4604	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4164 wrote to memory of 4604	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	83
PID 4164 wrote to memory of 4604	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	83
PID 4164 wrote to memory of 4604	4164	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4604

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.1MB

MD5
1e0009c45503ab8951da6ad01f038fdc

SHA1
d047797d47f3e53bf014632e21455105dd156f52

SHA256
85ba062a27e6676eac9372b21535d56fd41e81589b313fc8dc021ddce8fb1a7c

SHA512
ac84f5721b148fd14f39d4e231a35cb6fbaa961513c46dd0c308fdb24183d8e63ac37f9bd5687e9890366161036ccac32f94ab20689d7859135f1adb5ade24f6

Download Submit
memory/4164-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4164-12-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-14-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/4604-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4604-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download