darkcomet | 0521981bd87c3e64a3691700f5c16c70e96d8b02acf95a2f797acbacd89e5668

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2024, 08:35

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General

Target

3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Size

285KB
MD5

3cac25d8885fc7f71678a15a0f6aea09
SHA1

4aac0d6642bdb1f726a3e8912774df73e459091f
SHA256

0521981bd87c3e64a3691700f5c16c70e96d8b02acf95a2f797acbacd89e5668
SHA512

1f9a10a0d6b192ed1d48620aa6fb01c17cc26ec96069a486742868bdb112270cd54c1c032cfddfbfffd29df0ce5165edc2d5bf05fe6ccaddc7a5880d8108fc3e
SSDEEP

6144:C+YTI3jLl4f4Ufya8HKykzokX6eiEyrSOOTks0cviDlBFl8:C+BjIga8qtoApiEYmTkQv2BFl8

Score

10^/10

darkcomet çáóåã persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

ÇáÓåã

nnns.zapto.org:4433

Mutex

DC_MUTEX-NQCE0HR

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
x7jMtE5B6x8K
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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	3cac25d8885fc7f71678a15a0f6aea09_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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4348	msdcsc.exe

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1036-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/1036-1-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/1036-4-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/1036-5-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/files/0x00080000000234a5-11.dat	upx
behavioral2/memory/4348-22-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-23-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-24-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/1036-26-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-28-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-29-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-30-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-31-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-32-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-33-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-34-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-35-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-36-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-37-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-38-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-39-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-40-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-41-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-42-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-43-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4348-44-0x0000000000400000-0x00000000004C1000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.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

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeSecurityPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeBackupPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeRestorePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeShutdownPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeDebugPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeUndockPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: 33	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: 34	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: 35	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: 36	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4348	msdcsc.exe
Token: SeSecurityPrivilege	4348	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4348	msdcsc.exe
Token: SeLoadDriverPrivilege	4348	msdcsc.exe
Token: SeSystemProfilePrivilege	4348	msdcsc.exe
Token: SeSystemtimePrivilege	4348	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4348	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4348	msdcsc.exe
Token: SeCreatePagefilePrivilege	4348	msdcsc.exe
Token: SeBackupPrivilege	4348	msdcsc.exe
Token: SeRestorePrivilege	4348	msdcsc.exe
Token: SeShutdownPrivilege	4348	msdcsc.exe
Token: SeDebugPrivilege	4348	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4348	msdcsc.exe
Token: SeChangeNotifyPrivilege	4348	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4348	msdcsc.exe
Token: SeUndockPrivilege	4348	msdcsc.exe
Token: SeManageVolumePrivilege	4348	msdcsc.exe
Token: SeImpersonatePrivilege	4348	msdcsc.exe
Token: SeCreateGlobalPrivilege	4348	msdcsc.exe
Token: 33	4348	msdcsc.exe
Token: 34	4348	msdcsc.exe
Token: 35	4348	msdcsc.exe
Token: 36	4348	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4348	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 4348	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe	86
PID 1036 wrote to memory of 4348	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe	86
PID 1036 wrote to memory of 4348	1036	3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe	86
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87
PID 4348 wrote to memory of 4756	4348	msdcsc.exe	87

C:\Users\Admin\AppData\Local\Temp\3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3cac25d8885fc7f71678a15a0f6aea09_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:4756

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:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
285KB

MD5
3cac25d8885fc7f71678a15a0f6aea09

SHA1
4aac0d6642bdb1f726a3e8912774df73e459091f

SHA256
0521981bd87c3e64a3691700f5c16c70e96d8b02acf95a2f797acbacd89e5668

SHA512
1f9a10a0d6b192ed1d48620aa6fb01c17cc26ec96069a486742868bdb112270cd54c1c032cfddfbfffd29df0ce5165edc2d5bf05fe6ccaddc7a5880d8108fc3e

Download Submit
memory/1036-26-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1036-1-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1036-4-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1036-3-0x0000000000478000-0x00000000004B6000-memory.dmp

Filesize
248KB

Download
memory/1036-5-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1036-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1036-27-0x0000000000478000-0x00000000004B6000-memory.dmp

Filesize
248KB

Download
memory/4348-30-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-35-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-24-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-23-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-28-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-29-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-22-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-31-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-32-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-33-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-34-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-44-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-36-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-37-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-38-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-39-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-40-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-41-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-42-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4348-43-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4756-25-0x00000000012C0000-0x00000000012C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads