darkcomet | 85ba062a27e6676eac9372b21535d56fd41e81589b313fc8dc021ddce8fb1a7c

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2264	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

pid	Process
1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.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-1-5-21-3627615824-4061627003-3019543961-1000\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 46 IoCs

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSecurityPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeBackupPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeRestorePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeShutdownPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeDebugPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeUndockPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 33	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 34	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: 35	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2264	msdcsc.exe
Token: SeSecurityPrivilege	2264	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2264	msdcsc.exe
Token: SeLoadDriverPrivilege	2264	msdcsc.exe
Token: SeSystemProfilePrivilege	2264	msdcsc.exe
Token: SeSystemtimePrivilege	2264	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2264	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2264	msdcsc.exe
Token: SeCreatePagefilePrivilege	2264	msdcsc.exe
Token: SeBackupPrivilege	2264	msdcsc.exe
Token: SeRestorePrivilege	2264	msdcsc.exe
Token: SeShutdownPrivilege	2264	msdcsc.exe
Token: SeDebugPrivilege	2264	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2264	msdcsc.exe
Token: SeChangeNotifyPrivilege	2264	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2264	msdcsc.exe
Token: SeUndockPrivilege	2264	msdcsc.exe
Token: SeManageVolumePrivilege	2264	msdcsc.exe
Token: SeImpersonatePrivilege	2264	msdcsc.exe
Token: SeCreateGlobalPrivilege	2264	msdcsc.exe
Token: 33	2264	msdcsc.exe
Token: 34	2264	msdcsc.exe
Token: 35	2264	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2264	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1044 wrote to memory of 2264	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	28
PID 1044 wrote to memory of 2264	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	28
PID 1044 wrote to memory of 2264	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	28
PID 1044 wrote to memory of 2264	1044	1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1e0009c45503ab8951da6ad01f038fdc_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1044
- 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:2264

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

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/1044-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1044-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-12-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2264-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2264-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download