darkcomet | 8015fb5cf12e818fcf5f04345f29693906457bd2fe9908fdefa4fa4df5942030

Analysis

max time kernel
148s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-08-2024 01:39

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General

Target

887f590957758152aa63f760a776d044_JaffaCakes118.exe
Size

284KB
MD5

887f590957758152aa63f760a776d044
SHA1

63465c94d6ef14d9af80c49337f9597dd9ab6ed1
SHA256

8015fb5cf12e818fcf5f04345f29693906457bd2fe9908fdefa4fa4df5942030
SHA512

3193501c8d4219a1fc8271312aa32a7ae2e0fdcdb8fb41ef24ca1d5635e0626d659f35e7ff090a5180a47d38f9967fbeacdc00aa27c3be49c7b9cde8ffeb6213
SSDEEP

6144:gD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZLq:gl8E4w5huat7UovONzbXwnq

Score

10^/10

darkcomet latentbot windows discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Windows

darkcomet30.zapto.org:1604

192.168.1.4:1604

Mutex

DC_MUTEX-DZWFMUK

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
XeLrbkkso1cw
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Extracted

Family

latentbot

darkcomet30.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

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"	887f590957758152aa63f760a776d044_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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	887f590957758152aa63f760a776d044_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	msdcsc.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1644-0-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/files/0x00070000000234c9-6.dat	upx
behavioral2/memory/1644-15-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-16-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-18-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-20-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-22-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-24-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-26-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-28-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/4800-30-0x0000000000400000-0x00000000004CA000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	887f590957758152aa63f760a776d044_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 2 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	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeSecurityPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeBackupPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeRestorePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeShutdownPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeDebugPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeUndockPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: 33	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: 34	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: 35	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: 36	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4800	msdcsc.exe
Token: SeSecurityPrivilege	4800	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4800	msdcsc.exe
Token: SeLoadDriverPrivilege	4800	msdcsc.exe
Token: SeSystemProfilePrivilege	4800	msdcsc.exe
Token: SeSystemtimePrivilege	4800	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4800	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4800	msdcsc.exe
Token: SeCreatePagefilePrivilege	4800	msdcsc.exe
Token: SeBackupPrivilege	4800	msdcsc.exe
Token: SeRestorePrivilege	4800	msdcsc.exe
Token: SeShutdownPrivilege	4800	msdcsc.exe
Token: SeDebugPrivilege	4800	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4800	msdcsc.exe
Token: SeChangeNotifyPrivilege	4800	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4800	msdcsc.exe
Token: SeUndockPrivilege	4800	msdcsc.exe
Token: SeManageVolumePrivilege	4800	msdcsc.exe
Token: SeImpersonatePrivilege	4800	msdcsc.exe
Token: SeCreateGlobalPrivilege	4800	msdcsc.exe
Token: 33	4800	msdcsc.exe
Token: 34	4800	msdcsc.exe
Token: 35	4800	msdcsc.exe
Token: 36	4800	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4800	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 4800	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe	87
PID 1644 wrote to memory of 4800	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe	87
PID 1644 wrote to memory of 4800	1644	887f590957758152aa63f760a776d044_JaffaCakes118.exe	87

C:\Users\Admin\AppData\Local\Temp\887f590957758152aa63f760a776d044_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\887f590957758152aa63f760a776d044_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4800

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

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Downloads

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

Filesize
284KB

MD5
887f590957758152aa63f760a776d044

SHA1
63465c94d6ef14d9af80c49337f9597dd9ab6ed1

SHA256
8015fb5cf12e818fcf5f04345f29693906457bd2fe9908fdefa4fa4df5942030

SHA512
3193501c8d4219a1fc8271312aa32a7ae2e0fdcdb8fb41ef24ca1d5635e0626d659f35e7ff090a5180a47d38f9967fbeacdc00aa27c3be49c7b9cde8ffeb6213

Download Submit
memory/1644-0-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1644-1-0x00000000024D0000-0x00000000024D1000-memory.dmp

Filesize
4KB

Download
memory/1644-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-17-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/4800-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-20-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-22-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4800-30-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads