darkcomet | 8930c1b5c15e8c35e0f14f968f618cd957e827a034659e921fbdf89d7a16ec5b

Analysis

max time kernel
93s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 11:08

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General

Target

9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe
Size

1.0MB
MD5

9445a116feb5ab7c93898103f87e3c0c
SHA1

108e70f0d6ba43c9364f152daff02c308b5fbaf8
SHA256

8930c1b5c15e8c35e0f14f968f618cd957e827a034659e921fbdf89d7a16ec5b
SHA512

9cae42b41cc8cfa5911cb2c440ea9ff253decae2d4f7149ed582872ff36ef15a23fd0d5a2349bd8d5ee1a2ccbff8dc5c5f6a0cf89a3a2d1fb69832c3be2964c7
SSDEEP

24576:rhnvOTggIRfmQX3zRYC6FVZPv+FWe4Ys/E:5jYlDZ3+UT/E

Score

10^/10

darkcomet test discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

test

dgspy.no-ip.org:200

Mutex

DC_MUTEX-VVXYM1W

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
CcGcGg63997j
install
true
offline_keylogger
true
persistence
true
reg_key
test

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	svchost.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
704	attrib.exe
4428	attrib.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

Processes:

9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exesvchost.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 3 IoCs

Processes:

EpicBot.exesvchost.exemsdcsc.exe

pid	Process
2664	EpicBot.exe
4052	svchost.exe
3528	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\test = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4976 set thread context of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85

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 8 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

Processes:

svchost.execmd.exeattrib.execmd.exeattrib.exemsdcsc.exe9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exeEpicBot.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EpicBot.exe

Modifies registry class 1 IoCs

Processes:

svchost.exe

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

svchost.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4052	svchost.exe
Token: SeSecurityPrivilege	4052	svchost.exe
Token: SeTakeOwnershipPrivilege	4052	svchost.exe
Token: SeLoadDriverPrivilege	4052	svchost.exe
Token: SeSystemProfilePrivilege	4052	svchost.exe
Token: SeSystemtimePrivilege	4052	svchost.exe
Token: SeProfSingleProcessPrivilege	4052	svchost.exe
Token: SeIncBasePriorityPrivilege	4052	svchost.exe
Token: SeCreatePagefilePrivilege	4052	svchost.exe
Token: SeBackupPrivilege	4052	svchost.exe
Token: SeRestorePrivilege	4052	svchost.exe
Token: SeShutdownPrivilege	4052	svchost.exe
Token: SeDebugPrivilege	4052	svchost.exe
Token: SeSystemEnvironmentPrivilege	4052	svchost.exe
Token: SeChangeNotifyPrivilege	4052	svchost.exe
Token: SeRemoteShutdownPrivilege	4052	svchost.exe
Token: SeUndockPrivilege	4052	svchost.exe
Token: SeManageVolumePrivilege	4052	svchost.exe
Token: SeImpersonatePrivilege	4052	svchost.exe
Token: SeCreateGlobalPrivilege	4052	svchost.exe
Token: 33	4052	svchost.exe
Token: 34	4052	svchost.exe
Token: 35	4052	svchost.exe
Token: 36	4052	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exeEpicBot.exesvchost.execmd.execmd.exe

description	pid	Process	procid_target
PID 4976 wrote to memory of 2664	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	83
PID 4976 wrote to memory of 2664	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	83
PID 4976 wrote to memory of 2664	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	83
PID 2664 wrote to memory of 3056	2664	EpicBot.exe	84
PID 2664 wrote to memory of 3056	2664	EpicBot.exe	84
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4976 wrote to memory of 4052	4976	9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe	85
PID 4052 wrote to memory of 4972	4052	svchost.exe	86
PID 4052 wrote to memory of 4972	4052	svchost.exe	86
PID 4052 wrote to memory of 4972	4052	svchost.exe	86
PID 4052 wrote to memory of 1644	4052	svchost.exe	88
PID 4052 wrote to memory of 1644	4052	svchost.exe	88
PID 4052 wrote to memory of 1644	4052	svchost.exe	88
PID 4972 wrote to memory of 704	4972	cmd.exe	90
PID 4972 wrote to memory of 704	4972	cmd.exe	90
PID 4972 wrote to memory of 704	4972	cmd.exe	90
PID 1644 wrote to memory of 4428	1644	cmd.exe	91
PID 1644 wrote to memory of 4428	1644	cmd.exe	91
PID 1644 wrote to memory of 4428	1644	cmd.exe	91
PID 4052 wrote to memory of 3528	4052	svchost.exe	92
PID 4052 wrote to memory of 3528	4052	svchost.exe	92
PID 4052 wrote to memory of 3528	4052	svchost.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
704	attrib.exe
4428	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9445a116feb5ab7c93898103f87e3c0c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Users\Admin\AppData\Local\Temp\EpicBot.exe
  "C:\Users\Admin\AppData\Local\Temp\EpicBot.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Program Files\Java\jre-1.8\bin\javaw.exe
    "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\EpicBot.jar"
    3⤵
    PID:3056
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4052
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4972
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:704
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1644
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4428
- - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3528

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\EpicBot.exe

Filesize
43KB

MD5
eb8a2dcc1474b87f78fa342c95771c33

SHA1
26082d5c99d23a5af76d19751c1b21e13b2f4970

SHA256
90a95868f25a28202a04b04aea80594ff1db275f1d5247cda7d86c7dd41e1ab0

SHA512
b6d622549fd50440673d6cedafb3a571291e8f5b90c7ecd0e7db55b9d926a84850e665c27207bea7d4da17f2ccb05299f851f8759a7b53b856fea6babd77676b

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/2664-14-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4052-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4052-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4052-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4052-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4052-26-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/4052-88-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4976-2-0x0000000074CD0000-0x0000000075281000-memory.dmp

Filesize
5.7MB

Download
memory/4976-0-0x0000000074CD2000-0x0000000074CD3000-memory.dmp

Filesize
4KB

Download
memory/4976-1-0x0000000074CD0000-0x0000000075281000-memory.dmp

Filesize
5.7MB

Download
memory/4976-25-0x0000000074CD0000-0x0000000075281000-memory.dmp

Filesize
5.7MB

Download