darkcomet | fdc0862a8406ebbcbbf4f093602f275a5f88cc2d88940d115e6108504c21b1f4

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 23:19

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General

Target

a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
Size

812KB
MD5

a8a0a65f58409fe0ef9772c830e229b9
SHA1

adea21e5abb3f823b06ad50a4bd02398fc3f6ad5
SHA256

fdc0862a8406ebbcbbf4f093602f275a5f88cc2d88940d115e6108504c21b1f4
SHA512

24f809b5e84c2f48c0df790c4edd3353b260892b802224a1cb36c855a9d02659ab72ac44b5aafb2301ffabc28ec7476812ffdf528b8f1b7c824595bb3cb5db7e
SSDEEP

24576:761Z3lQXuEZ9AxqSx30RiwToA2XqM1+2Xqp3:70lQVZFSx30Rin5ZFXu

Score

10^/10

darkcomet latentbot guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

medoseleman.zapto.org:1604

Mutex

DC_MUTEX-5ZYX353

Attributes

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

Extracted

Family

latentbot

medoseleman.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"	3.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	3.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1500	3.exe
2640	msdcsc.exe

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
File created	C:\Windows\assembly\Desktop.ini	a8a0a65f58409fe0ef9772c830e229b9_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	3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 51 IoCs

description	pid	Process
Token: SeDebugPrivilege	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
Token: 33	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1500	3.exe
Token: SeSecurityPrivilege	1500	3.exe
Token: SeTakeOwnershipPrivilege	1500	3.exe
Token: SeLoadDriverPrivilege	1500	3.exe
Token: SeSystemProfilePrivilege	1500	3.exe
Token: SeSystemtimePrivilege	1500	3.exe
Token: SeProfSingleProcessPrivilege	1500	3.exe
Token: SeIncBasePriorityPrivilege	1500	3.exe
Token: SeCreatePagefilePrivilege	1500	3.exe
Token: SeBackupPrivilege	1500	3.exe
Token: SeRestorePrivilege	1500	3.exe
Token: SeShutdownPrivilege	1500	3.exe
Token: SeDebugPrivilege	1500	3.exe
Token: SeSystemEnvironmentPrivilege	1500	3.exe
Token: SeChangeNotifyPrivilege	1500	3.exe
Token: SeRemoteShutdownPrivilege	1500	3.exe
Token: SeUndockPrivilege	1500	3.exe
Token: SeManageVolumePrivilege	1500	3.exe
Token: SeImpersonatePrivilege	1500	3.exe
Token: SeCreateGlobalPrivilege	1500	3.exe
Token: 33	1500	3.exe
Token: 34	1500	3.exe
Token: 35	1500	3.exe
Token: 36	1500	3.exe
Token: SeIncreaseQuotaPrivilege	2640	msdcsc.exe
Token: SeSecurityPrivilege	2640	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2640	msdcsc.exe
Token: SeLoadDriverPrivilege	2640	msdcsc.exe
Token: SeSystemProfilePrivilege	2640	msdcsc.exe
Token: SeSystemtimePrivilege	2640	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2640	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2640	msdcsc.exe
Token: SeCreatePagefilePrivilege	2640	msdcsc.exe
Token: SeBackupPrivilege	2640	msdcsc.exe
Token: SeRestorePrivilege	2640	msdcsc.exe
Token: SeShutdownPrivilege	2640	msdcsc.exe
Token: SeDebugPrivilege	2640	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2640	msdcsc.exe
Token: SeChangeNotifyPrivilege	2640	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2640	msdcsc.exe
Token: SeUndockPrivilege	2640	msdcsc.exe
Token: SeManageVolumePrivilege	2640	msdcsc.exe
Token: SeImpersonatePrivilege	2640	msdcsc.exe
Token: SeCreateGlobalPrivilege	2640	msdcsc.exe
Token: 33	2640	msdcsc.exe
Token: 34	2640	msdcsc.exe
Token: 35	2640	msdcsc.exe
Token: 36	2640	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	msdcsc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 792 wrote to memory of 1500	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe	87
PID 792 wrote to memory of 1500	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe	87
PID 792 wrote to memory of 1500	792	a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe	87
PID 1500 wrote to memory of 2640	1500	3.exe	88
PID 1500 wrote to memory of 2640	1500	3.exe	88
PID 1500 wrote to memory of 2640	1500	3.exe	88

C:\Users\Admin\AppData\Local\Temp\a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a8a0a65f58409fe0ef9772c830e229b9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:792
- C:\Users\Admin\AppData\Local\Temp\3.exe
  "C:\Users\Admin\AppData\Local\Temp\3.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1500
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2640

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\AppData\Local\Temp\3.exe

Filesize
650KB

MD5
cb632064423a2aaebeee8372e769a16a

SHA1
18b472f1fa25a31aea37088538b5fed69fdf7316

SHA256
22d15b5ee06a47f19294d80f533e37ccde729aeaebe9cdc8d49c91d4fb13db3d

SHA512
6c0eb23b66dea239b2d74066941c223b2c6b4981574ad54caa0d440cbd52ba2f17ebfb441c854ba6ae53c2b83edb644088dfdfbe962fe59f0c16ea56225b8eb1

Download Submit
memory/792-0-0x00007FFDE5100000-0x00007FFDE520B000-memory.dmp

Filesize
1.0MB

Download
memory/792-1-0x000000001B240000-0x000000001B2E6000-memory.dmp

Filesize
664KB

Download
memory/792-2-0x000000001B7C0000-0x000000001BC8E000-memory.dmp

Filesize
4.8MB

Download
memory/792-3-0x000000001BE60000-0x000000001BF3E000-memory.dmp

Filesize
888KB

Download
memory/792-17-0x00007FFDE5100000-0x00007FFDE520B000-memory.dmp

Filesize
1.0MB

Download
memory/1500-19-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/1500-32-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-36-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-41-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-34-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-37-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-38-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-39-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-40-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-35-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-42-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-43-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-44-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-45-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-46-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2640-47-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads