darkcomet | 2a36bfa24a13cff48080cc90e8233561b63c7b0bca4fd36dea43a1012d6ed45a

General

Target

JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
Size

1.2MB
MD5

b65db09b7aa7715778918b2f4ef8df95
SHA1

d3a58b81ff9043cccdfa9b025d34e807b0d0aff6
SHA256

2a36bfa24a13cff48080cc90e8233561b63c7b0bca4fd36dea43a1012d6ed45a
SHA512

11468e8fa73b0b772d96c07fa8a28b54757102e8ea4e3f33ecbff8d4f7c90c3cf7259ec7869085ab8f949a472c98ecf128727b57f4f2953a8efd4b76a9d3945e
SSDEEP

24576:OzvKXRmFjLM+iq8eK4Fyu4DG6l7mpM52Tp1Qx:OzvKhoHM+sX4Fyu6xmpLp1Qx

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

Lolarne.no-ip.info:1604

Lolarne.no-ip.info:81

Mutex

DC_MUTEX-WQBMKHF

Attributes

gencode
8n81%wUw/*Ji
install
false
offline_keylogger
true
persistence
false

rc4.plain

Signatures

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

Modifies security service 2 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	vbc.exe

Windows security bypass 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	vbc.exe

Executes dropped EXE 2 IoCs

pid	Process
1640	vbc.exe
5484	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Windows security modification 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	vbc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe"	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4100 set thread context of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1640	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1640	vbc.exe
Token: SeSecurityPrivilege	1640	vbc.exe
Token: SeTakeOwnershipPrivilege	1640	vbc.exe
Token: SeLoadDriverPrivilege	1640	vbc.exe
Token: SeSystemProfilePrivilege	1640	vbc.exe
Token: SeSystemtimePrivilege	1640	vbc.exe
Token: SeProfSingleProcessPrivilege	1640	vbc.exe
Token: SeIncBasePriorityPrivilege	1640	vbc.exe
Token: SeCreatePagefilePrivilege	1640	vbc.exe
Token: SeBackupPrivilege	1640	vbc.exe
Token: SeRestorePrivilege	1640	vbc.exe
Token: SeShutdownPrivilege	1640	vbc.exe
Token: SeDebugPrivilege	1640	vbc.exe
Token: SeSystemEnvironmentPrivilege	1640	vbc.exe
Token: SeChangeNotifyPrivilege	1640	vbc.exe
Token: SeRemoteShutdownPrivilege	1640	vbc.exe
Token: SeUndockPrivilege	1640	vbc.exe
Token: SeManageVolumePrivilege	1640	vbc.exe
Token: SeImpersonatePrivilege	1640	vbc.exe
Token: SeCreateGlobalPrivilege	1640	vbc.exe
Token: 33	1640	vbc.exe
Token: 34	1640	vbc.exe
Token: 35	1640	vbc.exe
Token: 36	1640	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1640	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 4100 wrote to memory of 1640	4100	JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe	89
PID 2492 wrote to memory of 5484	2492	cmd.exe	90
PID 2492 wrote to memory of 5484	2492	cmd.exe	90
PID 2492 wrote to memory of 5484	2492	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1640

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
  C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5484

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

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\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe.log

Filesize
594B

MD5
fdb26b3b547022b45cfaeee57eafd566

SHA1
11c6798b8a59233f404014c5e79b3363cd564b37

SHA256
2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

SHA512
44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

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

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_b65db09b7aa7715778918b2f4ef8df95.exe

Filesize
1.2MB

MD5
b65db09b7aa7715778918b2f4ef8df95

SHA1
d3a58b81ff9043cccdfa9b025d34e807b0d0aff6

SHA256
2a36bfa24a13cff48080cc90e8233561b63c7b0bca4fd36dea43a1012d6ed45a

SHA512
11468e8fa73b0b772d96c07fa8a28b54757102e8ea4e3f33ecbff8d4f7c90c3cf7259ec7869085ab8f949a472c98ecf128727b57f4f2953a8efd4b76a9d3945e

Download Submit
memory/1640-28-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-36-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-13-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-10-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-16-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-14-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-45-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-19-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/1640-27-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-44-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-43-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-42-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-41-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-40-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-39-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-38-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-37-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-29-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-32-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-33-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-34-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-35-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1640-30-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4100-2-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/4100-5-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/4100-0-0x0000000074CE2000-0x0000000074CE3000-memory.dmp

Filesize
4KB

Download
memory/4100-1-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/4100-18-0x0000000074CE0000-0x0000000075291000-memory.dmp

Filesize
5.7MB

Download
memory/5484-31-0x0000000074040000-0x00000000745F1000-memory.dmp

Filesize
5.7MB

Download
memory/5484-26-0x0000000074040000-0x00000000745F1000-memory.dmp

Filesize
5.7MB

Download
memory/5484-24-0x0000000074042000-0x0000000074043000-memory.dmp

Filesize
4KB

Download
memory/5484-25-0x0000000074040000-0x00000000745F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads