darkcomet | e8e913379cc347386ab9d4e79f0c352ca9523e98cfabf7652f87240abc343ce3

General

Target

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Size

725KB
MD5

70654212388bd1b6dbe96f20bed2b9fd
SHA1

7a36179f136cb7cab344218060add8cc8442fc70
SHA256

e8e913379cc347386ab9d4e79f0c352ca9523e98cfabf7652f87240abc343ce3
SHA512

dcb83d8c4911798e727e99d6b2d6df3bbcfce72139db5c7eb831f1d89d1703d9f9a2286feae1ae919da97d3d516f1f4cbea30f21e3c3961bc8e16b9018bdf19b
SSDEEP

12288:48UaT9XY2siA0bMG09xD7I3Gg8ecgVvfBoCDBOQQYbVXpuy1r/Gsd:RUKoN0bUxgGa/pfBHDb+y1LG

Score

10^/10

darkcomet latentbot discovery persistence rat trojan upx

Malware Config

Extracted

Family

latentbot

C2

hfwhitelight.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

Processes:

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.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:

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3644 msdcsc.exe

pid	process
3644	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Audio = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 3644 set thread context of 2220 3644 msdcsc.exe iexplore.exe

description	pid	process	target process
PID 3644 set thread context of 2220	3644	msdcsc.exe	iexplore.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4920-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe	upx
behavioral2/memory/4920-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3644-17-0x0000000000400000-0x00000000004B7000-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 3 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:

msdcsc.exeiexplore.exe70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeSecurityPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeBackupPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeRestorePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeShutdownPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeDebugPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeUndockPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: 33	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: 34	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: 35	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: 36	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3644	msdcsc.exe
Token: SeSecurityPrivilege	3644	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3644	msdcsc.exe
Token: SeLoadDriverPrivilege	3644	msdcsc.exe
Token: SeSystemProfilePrivilege	3644	msdcsc.exe
Token: SeSystemtimePrivilege	3644	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3644	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3644	msdcsc.exe
Token: SeCreatePagefilePrivilege	3644	msdcsc.exe
Token: SeBackupPrivilege	3644	msdcsc.exe
Token: SeRestorePrivilege	3644	msdcsc.exe
Token: SeShutdownPrivilege	3644	msdcsc.exe
Token: SeDebugPrivilege	3644	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3644	msdcsc.exe
Token: SeChangeNotifyPrivilege	3644	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3644	msdcsc.exe
Token: SeUndockPrivilege	3644	msdcsc.exe
Token: SeManageVolumePrivilege	3644	msdcsc.exe
Token: SeImpersonatePrivilege	3644	msdcsc.exe
Token: SeCreateGlobalPrivilege	3644	msdcsc.exe
Token: 33	3644	msdcsc.exe
Token: 34	3644	msdcsc.exe
Token: 35	3644	msdcsc.exe
Token: 36	3644	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2220	iexplore.exe
Token: SeSecurityPrivilege	2220	iexplore.exe
Token: SeTakeOwnershipPrivilege	2220	iexplore.exe
Token: SeLoadDriverPrivilege	2220	iexplore.exe
Token: SeSystemProfilePrivilege	2220	iexplore.exe
Token: SeSystemtimePrivilege	2220	iexplore.exe
Token: SeProfSingleProcessPrivilege	2220	iexplore.exe
Token: SeIncBasePriorityPrivilege	2220	iexplore.exe
Token: SeCreatePagefilePrivilege	2220	iexplore.exe
Token: SeBackupPrivilege	2220	iexplore.exe
Token: SeRestorePrivilege	2220	iexplore.exe
Token: SeShutdownPrivilege	2220	iexplore.exe
Token: SeDebugPrivilege	2220	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2220	iexplore.exe
Token: SeChangeNotifyPrivilege	2220	iexplore.exe
Token: SeRemoteShutdownPrivilege	2220	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

2220 iexplore.exe

pid	process
2220	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 4920 wrote to memory of 3644	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe	msdcsc.exe
PID 4920 wrote to memory of 3644	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe	msdcsc.exe
PID 4920 wrote to memory of 3644	4920	70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe	msdcsc.exe
PID 3644 wrote to memory of 2220	3644	msdcsc.exe	iexplore.exe
PID 3644 wrote to memory of 2220	3644	msdcsc.exe	iexplore.exe
PID 3644 wrote to memory of 2220	3644	msdcsc.exe	iexplore.exe
PID 3644 wrote to memory of 2220	3644	msdcsc.exe	iexplore.exe
PID 3644 wrote to memory of 2220	3644	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\70654212388bd1b6dbe96f20bed2b9fd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\70654212388bd1b6dbe96f20bed2b9fd_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:4920
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3644
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2220

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

Modify Registry

2

T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe

Filesize
725KB

MD5
70654212388bd1b6dbe96f20bed2b9fd

SHA1
7a36179f136cb7cab344218060add8cc8442fc70

SHA256
e8e913379cc347386ab9d4e79f0c352ca9523e98cfabf7652f87240abc343ce3

SHA512
dcb83d8c4911798e727e99d6b2d6df3bbcfce72139db5c7eb831f1d89d1703d9f9a2286feae1ae919da97d3d516f1f4cbea30f21e3c3961bc8e16b9018bdf19b

Download Submit
memory/3644-15-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/3644-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4920-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4920-1-0x0000000002350000-0x0000000002351000-memory.dmp

Filesize
4KB

Download
memory/4920-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads