darkcomet | 2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30-04-2024 04:53

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General

Target

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Size

252KB
MD5

09108aeb9c221f30128ba072950c69fd
SHA1

9efd8cd35e0b4ebd945862be1b596b34c87652d6
SHA256

2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa
SHA512

08c51745d206fbff5aa02449c0b8e4a9da48d8bd7649d2b35b2fbacfee27f55cded7ab7b7722903066603cbf66a4a2f1324d19662d1253b74c1481f314ee39aa
SSDEEP

6144:scNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37:scW7KEZlPzCy37

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

jully.ddns.net:1604

Mutex

DC_MUTEX-H5UL2AN

Attributes

InstallPath
MSDCSC\explorer.exe
gencode
STpDyDpvpi35
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:

09108aeb9c221f30128ba072950c69fd_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\\explorer.exe"	09108aeb9c221f30128ba072950c69fd_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:

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid	Process
5068	notepad.exe

Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid	Process
60	explorer.exe

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2112-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/files/0x000d000000023b92-7.dat	upx
behavioral2/memory/60-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2112-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/60-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exeexplorer.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe"	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe"	explorer.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid	Process
60	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exeexplorer.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeSecurityPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeBackupPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeRestorePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeShutdownPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeDebugPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeUndockPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: 33	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: 34	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: 35	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: 36	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	60	explorer.exe
Token: SeSecurityPrivilege	60	explorer.exe
Token: SeTakeOwnershipPrivilege	60	explorer.exe
Token: SeLoadDriverPrivilege	60	explorer.exe
Token: SeSystemProfilePrivilege	60	explorer.exe
Token: SeSystemtimePrivilege	60	explorer.exe
Token: SeProfSingleProcessPrivilege	60	explorer.exe
Token: SeIncBasePriorityPrivilege	60	explorer.exe
Token: SeCreatePagefilePrivilege	60	explorer.exe
Token: SeBackupPrivilege	60	explorer.exe
Token: SeRestorePrivilege	60	explorer.exe
Token: SeShutdownPrivilege	60	explorer.exe
Token: SeDebugPrivilege	60	explorer.exe
Token: SeSystemEnvironmentPrivilege	60	explorer.exe
Token: SeChangeNotifyPrivilege	60	explorer.exe
Token: SeRemoteShutdownPrivilege	60	explorer.exe
Token: SeUndockPrivilege	60	explorer.exe
Token: SeManageVolumePrivilege	60	explorer.exe
Token: SeImpersonatePrivilege	60	explorer.exe
Token: SeCreateGlobalPrivilege	60	explorer.exe
Token: 33	60	explorer.exe
Token: 34	60	explorer.exe
Token: 35	60	explorer.exe
Token: 36	60	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid	Process
60	explorer.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 5068	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	86
PID 2112 wrote to memory of 60	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	87
PID 2112 wrote to memory of 60	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	87
PID 2112 wrote to memory of 60	2112	09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\09108aeb9c221f30128ba072950c69fd_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:5068
- C:\Users\Admin\Documents\MSDCSC\explorer.exe
  "C:\Users\Admin\Documents\MSDCSC\explorer.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:60

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\explorer.exe

Filesize
252KB

MD5
09108aeb9c221f30128ba072950c69fd

SHA1
9efd8cd35e0b4ebd945862be1b596b34c87652d6

SHA256
2c0b605ae93299e091916c61e420098bdbf2decd077d5ef9ab03ab1f2dcf14aa

SHA512
08c51745d206fbff5aa02449c0b8e4a9da48d8bd7649d2b35b2fbacfee27f55cded7ab7b7722903066603cbf66a4a2f1324d19662d1253b74c1481f314ee39aa

Download Submit
memory/60-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-65-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/60-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/60-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2112-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2112-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2112-1-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/5068-5-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download