darkcomet | b1506065f52358326c076d54417c4a1fb4885999cd241187bbc2770d4da75fcb

General

Target

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Size

659KB
MD5

8864fdeab288f052ee0c85dfe019f2c5
SHA1

b674d37f28d3982cc507feaff591db709ff18b82
SHA256

b1506065f52358326c076d54417c4a1fb4885999cd241187bbc2770d4da75fcb
SHA512

cb843f5a3bd8a9bb10adf8b18ff68afaefcdcdcebfbf7248db14ebfe731598aceaebb8d0b599d891fe6520097328d18aee8c3cff413ef19b3d8a29de6199fea8
SSDEEP

12288:O9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hX:aZ1xuVVjfFoynPaVBUR8f+kN10EBt

Score

10^/10

darkcomet runeplay discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

RunePlay

C2

runeplay.no-ip.org:255

Mutex

DC_MUTEX-NN52UMZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
uujPZV2CVQTt
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
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe

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"	8864fdeab288f052ee0c85dfe019f2c5_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

Processes:

attrib.exeattrib.exe

pid process

2940 attrib.exe
4588 attrib.exe

pid	process
2940	attrib.exe
4588	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

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

5064 msdcsc.exe

pid	process
5064	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\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 7 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:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.execmd.execmd.exeattrib.exeattrib.exemsdcsc.exenotepad.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

5064 msdcsc.exe

pid	process
5064	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeSecurityPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeBackupPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeRestorePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeShutdownPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeDebugPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeUndockPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: 33	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: 34	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: 35	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: 36	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	5064	msdcsc.exe
Token: SeSecurityPrivilege	5064	msdcsc.exe
Token: SeTakeOwnershipPrivilege	5064	msdcsc.exe
Token: SeLoadDriverPrivilege	5064	msdcsc.exe
Token: SeSystemProfilePrivilege	5064	msdcsc.exe
Token: SeSystemtimePrivilege	5064	msdcsc.exe
Token: SeProfSingleProcessPrivilege	5064	msdcsc.exe
Token: SeIncBasePriorityPrivilege	5064	msdcsc.exe
Token: SeCreatePagefilePrivilege	5064	msdcsc.exe
Token: SeBackupPrivilege	5064	msdcsc.exe
Token: SeRestorePrivilege	5064	msdcsc.exe
Token: SeShutdownPrivilege	5064	msdcsc.exe
Token: SeDebugPrivilege	5064	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	5064	msdcsc.exe
Token: SeChangeNotifyPrivilege	5064	msdcsc.exe
Token: SeRemoteShutdownPrivilege	5064	msdcsc.exe
Token: SeUndockPrivilege	5064	msdcsc.exe
Token: SeManageVolumePrivilege	5064	msdcsc.exe
Token: SeImpersonatePrivilege	5064	msdcsc.exe
Token: SeCreateGlobalPrivilege	5064	msdcsc.exe
Token: 33	5064	msdcsc.exe
Token: 34	5064	msdcsc.exe
Token: 35	5064	msdcsc.exe
Token: 36	5064	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

5064 msdcsc.exe

pid	process
5064	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 4516 wrote to memory of 2308	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 2308	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 2308	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 5100	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 5100	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 4516 wrote to memory of 5100	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	cmd.exe
PID 2308 wrote to memory of 2940	2308	cmd.exe	attrib.exe
PID 2308 wrote to memory of 2940	2308	cmd.exe	attrib.exe
PID 2308 wrote to memory of 2940	2308	cmd.exe	attrib.exe
PID 5100 wrote to memory of 4588	5100	cmd.exe	attrib.exe
PID 5100 wrote to memory of 4588	5100	cmd.exe	attrib.exe
PID 5100 wrote to memory of 4588	5100	cmd.exe	attrib.exe
PID 4516 wrote to memory of 5064	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	msdcsc.exe
PID 4516 wrote to memory of 5064	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	msdcsc.exe
PID 4516 wrote to memory of 5064	4516	8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe	msdcsc.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe
PID 5064 wrote to memory of 2024	5064	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2940 attrib.exe
4588 attrib.exe

pid	process
2940	attrib.exe
4588	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8864fdeab288f052ee0c85dfe019f2c5_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:4516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\8864fdeab288f052ee0c85dfe019f2c5_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2940
- 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:5100
- - 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:4588
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\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:5064
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
659KB

MD5
8864fdeab288f052ee0c85dfe019f2c5

SHA1
b674d37f28d3982cc507feaff591db709ff18b82

SHA256
b1506065f52358326c076d54417c4a1fb4885999cd241187bbc2770d4da75fcb

SHA512
cb843f5a3bd8a9bb10adf8b18ff68afaefcdcdcebfbf7248db14ebfe731598aceaebb8d0b599d891fe6520097328d18aee8c3cff413ef19b3d8a29de6199fea8

Download Submit
memory/2024-63-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/4516-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4516-0-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/5064-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-66-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/5064-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-62-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/5064-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5064-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads