darkcomet | 16e9f95080e6f35658f782bfb345b38c96b9024d199e2f5d8f3bb64c1f92132b

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 09:33

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General

Target

f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Size

350KB
MD5

f812781d21e870d00e5e4fc7df650d84
SHA1

d4db4e81beab1b328f1a8056afc047102795e6f6
SHA256

16e9f95080e6f35658f782bfb345b38c96b9024d199e2f5d8f3bb64c1f92132b
SHA512

5ee6296e66e43ab2452ab0b49c96ab1adda6552cb50b4c54b20d7c00bbab0915e6ad72ad80d071ffa64d6f319e9bf876f2619f76bedebb3eb29031dbd3b491df
SSDEEP

6144:FMI/jlS4kCwHL76nz9Q3uR5LTYYBIsHHlZsDLDv:FMQlS9Cwr79uLLTvBIYFZKvv

Score

10^/10

darkcomet latentbot rat discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

RAT

shobolozaur.zapto.org:1604

Mutex

DC_MUTEX-F9SDENS

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
8ldVUuvAZfED
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Extracted

Family

latentbot

shobolozaur.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"	f812781d21e870d00e5e4fc7df650d84_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
4856	attrib.exe
1064	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4396	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4396 set thread context of 5100	4396	msdcsc.exe	88

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3820-0-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral2/files/0x00080000000233f6-6.dat	upx
behavioral2/memory/3820-15-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral2/memory/5100-17-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral2/memory/4396-19-0x0000000000400000-0x00000000004EA000-memory.dmp	upx

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeSecurityPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeBackupPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeRestorePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeShutdownPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeDebugPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeUndockPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: 33	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: 34	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: 35	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: 36	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4396	msdcsc.exe
Token: SeSecurityPrivilege	4396	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4396	msdcsc.exe
Token: SeLoadDriverPrivilege	4396	msdcsc.exe
Token: SeSystemProfilePrivilege	4396	msdcsc.exe
Token: SeSystemtimePrivilege	4396	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4396	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4396	msdcsc.exe
Token: SeCreatePagefilePrivilege	4396	msdcsc.exe
Token: SeBackupPrivilege	4396	msdcsc.exe
Token: SeRestorePrivilege	4396	msdcsc.exe
Token: SeShutdownPrivilege	4396	msdcsc.exe
Token: SeDebugPrivilege	4396	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4396	msdcsc.exe
Token: SeChangeNotifyPrivilege	4396	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4396	msdcsc.exe
Token: SeUndockPrivilege	4396	msdcsc.exe
Token: SeManageVolumePrivilege	4396	msdcsc.exe
Token: SeImpersonatePrivilege	4396	msdcsc.exe
Token: SeCreateGlobalPrivilege	4396	msdcsc.exe
Token: 33	4396	msdcsc.exe
Token: 34	4396	msdcsc.exe
Token: 35	4396	msdcsc.exe
Token: 36	4396	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	5100	iexplore.exe
Token: SeSecurityPrivilege	5100	iexplore.exe
Token: SeTakeOwnershipPrivilege	5100	iexplore.exe
Token: SeLoadDriverPrivilege	5100	iexplore.exe
Token: SeSystemProfilePrivilege	5100	iexplore.exe
Token: SeSystemtimePrivilege	5100	iexplore.exe
Token: SeProfSingleProcessPrivilege	5100	iexplore.exe
Token: SeIncBasePriorityPrivilege	5100	iexplore.exe
Token: SeCreatePagefilePrivilege	5100	iexplore.exe
Token: SeBackupPrivilege	5100	iexplore.exe
Token: SeRestorePrivilege	5100	iexplore.exe
Token: SeShutdownPrivilege	5100	iexplore.exe
Token: SeDebugPrivilege	5100	iexplore.exe
Token: SeSystemEnvironmentPrivilege	5100	iexplore.exe
Token: SeChangeNotifyPrivilege	5100	iexplore.exe
Token: SeRemoteShutdownPrivilege	5100	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5100	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 4888	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	82
PID 3820 wrote to memory of 4888	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	82
PID 3820 wrote to memory of 4888	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	82
PID 3820 wrote to memory of 3264	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	84
PID 3820 wrote to memory of 3264	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	84
PID 3820 wrote to memory of 3264	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	84
PID 3820 wrote to memory of 4396	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	86
PID 3820 wrote to memory of 4396	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	86
PID 3820 wrote to memory of 4396	3820	f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe	86
PID 3264 wrote to memory of 4856	3264	cmd.exe	87
PID 3264 wrote to memory of 4856	3264	cmd.exe	87
PID 3264 wrote to memory of 4856	3264	cmd.exe	87
PID 4396 wrote to memory of 5100	4396	msdcsc.exe	88
PID 4396 wrote to memory of 5100	4396	msdcsc.exe	88
PID 4396 wrote to memory of 5100	4396	msdcsc.exe	88
PID 4396 wrote to memory of 5100	4396	msdcsc.exe	88
PID 4396 wrote to memory of 5100	4396	msdcsc.exe	88
PID 4888 wrote to memory of 1064	4888	cmd.exe	89
PID 4888 wrote to memory of 1064	4888	cmd.exe	89
PID 4888 wrote to memory of 1064	4888	cmd.exe	89
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90
PID 5100 wrote to memory of 1084	5100	iexplore.exe	90

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4856	attrib.exe
1064	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f812781d21e870d00e5e4fc7df650d84_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:3820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\f812781d21e870d00e5e4fc7df650d84_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1064
- 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:3264
- - 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:4856
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4396
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5100
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:1084

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\Documents\MSDCSC\msdcsc.exe

Filesize
350KB

MD5
f812781d21e870d00e5e4fc7df650d84

SHA1
d4db4e81beab1b328f1a8056afc047102795e6f6

SHA256
16e9f95080e6f35658f782bfb345b38c96b9024d199e2f5d8f3bb64c1f92132b

SHA512
5ee6296e66e43ab2452ab0b49c96ab1adda6552cb50b4c54b20d7c00bbab0915e6ad72ad80d071ffa64d6f319e9bf876f2619f76bedebb3eb29031dbd3b491df

Download Submit
memory/1084-20-0x0000000000E50000-0x0000000000E51000-memory.dmp

Filesize
4KB

Download
memory/3820-0-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3820-1-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/3820-15-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/4396-16-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/4396-19-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/5100-17-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads