darkcomet | dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

Resubmissions

04-11-2024 23:05

241104-22x9zazdnp 10

10-10-2024 19:23

241010-x34qxsxfql 10

Analysis

max time kernel
120s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 23:05

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General

Target

3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Size

658KB
MD5

3178fcad2d2c2f3c0f4f70aecfb18db7
SHA1

0ecad6522214f9bef4dd8f2f8eb927827bc4971c
SHA256

dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9
SHA512

57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hV:KZ1xuVVjfFoynPaVBUR8f+kN10EBP

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-7X99PTF

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
DNgeskLTppzX
install
true
offline_keylogger
true
persistence
true
reg_key
System32.dll

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

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"	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.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

pid	Process
3452	attrib.exe
3416	attrib.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4248	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32.dll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32.dll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2792	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeSecurityPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeBackupPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeRestorePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeShutdownPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeDebugPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeUndockPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: 33	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: 34	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: 35	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: 36	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2792	msdcsc.exe
Token: SeSecurityPrivilege	2792	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2792	msdcsc.exe
Token: SeLoadDriverPrivilege	2792	msdcsc.exe
Token: SeSystemProfilePrivilege	2792	msdcsc.exe
Token: SeSystemtimePrivilege	2792	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2792	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2792	msdcsc.exe
Token: SeCreatePagefilePrivilege	2792	msdcsc.exe
Token: SeBackupPrivilege	2792	msdcsc.exe
Token: SeRestorePrivilege	2792	msdcsc.exe
Token: SeShutdownPrivilege	2792	msdcsc.exe
Token: SeDebugPrivilege	2792	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2792	msdcsc.exe
Token: SeChangeNotifyPrivilege	2792	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2792	msdcsc.exe
Token: SeUndockPrivilege	2792	msdcsc.exe
Token: SeManageVolumePrivilege	2792	msdcsc.exe
Token: SeImpersonatePrivilege	2792	msdcsc.exe
Token: SeCreateGlobalPrivilege	2792	msdcsc.exe
Token: 33	2792	msdcsc.exe
Token: 34	2792	msdcsc.exe
Token: 35	2792	msdcsc.exe
Token: 36	2792	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2792	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 3408	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	85
PID 2864 wrote to memory of 3408	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	85
PID 2864 wrote to memory of 3408	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	85
PID 2864 wrote to memory of 1860	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	87
PID 2864 wrote to memory of 1860	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	87
PID 2864 wrote to memory of 1860	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	87
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 2864 wrote to memory of 4248	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	88
PID 3408 wrote to memory of 3452	3408	cmd.exe	90
PID 3408 wrote to memory of 3452	3408	cmd.exe	90
PID 3408 wrote to memory of 3452	3408	cmd.exe	90
PID 1860 wrote to memory of 3416	1860	cmd.exe	91
PID 1860 wrote to memory of 3416	1860	cmd.exe	91
PID 1860 wrote to memory of 3416	1860	cmd.exe	91
PID 2864 wrote to memory of 2792	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	94
PID 2864 wrote to memory of 2792	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	94
PID 2864 wrote to memory of 2792	2864	3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe	94
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95
PID 2792 wrote to memory of 2760	2792	msdcsc.exe	95

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3452	attrib.exe
3416	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3408
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\3178fcad2d2c2f3c0f4f70aecfb18db7_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3416
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4248
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2760

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
3178fcad2d2c2f3c0f4f70aecfb18db7

SHA1
0ecad6522214f9bef4dd8f2f8eb927827bc4971c

SHA256
dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

SHA512
57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985

Download Submit
memory/2760-62-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download
memory/2792-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2864-0-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/2864-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4248-3-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads