darkcomet | de3665405a74bd3fd308b8831d55d8b86cd00f81126333de8dfdb9b26bc9fe4e

General

Target

JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe
Size

1.1MB
MD5

1cadb40bb61186f2e85313c1e96572d7
SHA1

2feebaaeffb1114f1c630139f5466b937951d17f
SHA256

de3665405a74bd3fd308b8831d55d8b86cd00f81126333de8dfdb9b26bc9fe4e
SHA512

e473b4d743072e77dc5e6ecd7bae9d51fe4cfdeb2a58fc24bbd834e9e6485dc5d4259d1530301169b8bb4e8e5ee1bcaaa141339fc43827bf2fe92ceec5c272cb
SSDEEP

24576:OvRkla+ipDfHGpY+7oY6A+mgzbGBUR39h/ii:2RSI/qTP6AOfTR39h/ii

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
persistence
false

rc4.plain

Extracted

Family

darkcomet

Botnet

Guest16

C2

94.102.63.198:1742

xcb222.no-ip.org:1742

Mutex

DC_MUTEX-2AXT7EA

Attributes

gencode
ooYEEUcSXUpB
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

Executes dropped EXE 2 IoCs

pid	Process
2528	winupd.exe
2764	winlogon.exe

Loads dropped DLL 3 IoCs

pid	Process
2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe
2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe
2528	winupd.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update Service = "C:\\Users\\Admin\\AppData\\winupd.exe"	winupd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 2764	2528	winupd.exe	32

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2528	winupd.exe
2528	winupd.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2764	winlogon.exe
Token: SeSecurityPrivilege	2764	winlogon.exe
Token: SeTakeOwnershipPrivilege	2764	winlogon.exe
Token: SeLoadDriverPrivilege	2764	winlogon.exe
Token: SeSystemProfilePrivilege	2764	winlogon.exe
Token: SeSystemtimePrivilege	2764	winlogon.exe
Token: SeProfSingleProcessPrivilege	2764	winlogon.exe
Token: SeIncBasePriorityPrivilege	2764	winlogon.exe
Token: SeCreatePagefilePrivilege	2764	winlogon.exe
Token: SeBackupPrivilege	2764	winlogon.exe
Token: SeRestorePrivilege	2764	winlogon.exe
Token: SeShutdownPrivilege	2764	winlogon.exe
Token: SeDebugPrivilege	2764	winlogon.exe
Token: SeSystemEnvironmentPrivilege	2764	winlogon.exe
Token: SeChangeNotifyPrivilege	2764	winlogon.exe
Token: SeRemoteShutdownPrivilege	2764	winlogon.exe
Token: SeUndockPrivilege	2764	winlogon.exe
Token: SeManageVolumePrivilege	2764	winlogon.exe
Token: SeImpersonatePrivilege	2764	winlogon.exe
Token: SeCreateGlobalPrivilege	2764	winlogon.exe
Token: 33	2764	winlogon.exe
Token: 34	2764	winlogon.exe
Token: 35	2764	winlogon.exe
Token: SeDebugPrivilege	2528	winupd.exe
Token: SeDebugPrivilege	2528	winupd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	winlogon.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2528	2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe	31
PID 2584 wrote to memory of 2528	2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe	31
PID 2584 wrote to memory of 2528	2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe	31
PID 2584 wrote to memory of 2528	2584	JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe	31
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32
PID 2528 wrote to memory of 2764	2528	winupd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1cadb40bb61186f2e85313c1e96572d7.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\winupd.exe
  "C:\Users\Admin\AppData\winupd.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2528
- - C:\Users\Admin\AppData\Local\Temp\winlogon.exe
    C:\Users\Admin\AppData\Local\Temp\\winlogon.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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:\Users\Admin\AppData\winupd.exe

Filesize
451KB

MD5
3ae6a42edbb38ce65fd8b7130c1e7fd3

SHA1
194d6dd4f841ffa7787629cd1426c1b49669f445

SHA256
c81c0a2b3daeb5a80644bda9faeab26357dec3e4e0256d4a0088aae8e3ad5a6f

SHA512
cd80f662f6986f11b40a7c0df35e237be3e4aec033c5c71e978d064ee63e01e73603e8fc28150685786b320f48186596d04ff5e192aded2de1cfeb526ad2b64c

Download Submit
\Users\Admin\AppData\Local\Temp\winlogon.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/2528-15-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2528-16-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2528-46-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-0-0x00000000744A1000-0x00000000744A2000-memory.dmp

Filesize
4KB

Download
memory/2584-2-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-1-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-3-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-14-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-47-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads