darkcomet | 4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381

General

Target

4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe
Size

282KB
MD5

38a67b2fa87a6d49c5fed725ef7cc3e6
SHA1

49b608056a135553bb06046e5bd03d118661648a
SHA256

4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381
SHA512

9daac628212a599ab53e711b2bebc53d32c72cf6d21e5fc106e3898fdc4ed3693fca4dee0dac1b1352ccb359fafde2d76f4590f250ef65821ea4ab60b2687da6
SSDEEP

6144:Q7DuIRToyeNNkwLq/oCjEqfZgDQJa342ERAiU8AIHHA+K:kTo1ZqfjEGZiMRAiU+HAT

Score

10^/10

darkcomet rs discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

RS

C2

hoszelaar.no-ip.org:10101

Mutex

DC_MUTEX-X4K5D3S

Attributes

gencode
NKcVDHlXwyol
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
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\wintaskmgr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wintaskmgr.exe"	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1192 set thread context of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/328-8-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-11-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-6-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-13-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-14-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-12-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-17-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-18-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-21-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-20-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-22-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-23-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-24-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-25-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-26-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-28-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-29-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-31-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-32-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-33-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-34-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/328-35-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 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	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	328	vbc.exe
Token: SeSecurityPrivilege	328	vbc.exe
Token: SeTakeOwnershipPrivilege	328	vbc.exe
Token: SeLoadDriverPrivilege	328	vbc.exe
Token: SeSystemProfilePrivilege	328	vbc.exe
Token: SeSystemtimePrivilege	328	vbc.exe
Token: SeProfSingleProcessPrivilege	328	vbc.exe
Token: SeIncBasePriorityPrivilege	328	vbc.exe
Token: SeCreatePagefilePrivilege	328	vbc.exe
Token: SeBackupPrivilege	328	vbc.exe
Token: SeRestorePrivilege	328	vbc.exe
Token: SeShutdownPrivilege	328	vbc.exe
Token: SeDebugPrivilege	328	vbc.exe
Token: SeSystemEnvironmentPrivilege	328	vbc.exe
Token: SeChangeNotifyPrivilege	328	vbc.exe
Token: SeRemoteShutdownPrivilege	328	vbc.exe
Token: SeUndockPrivilege	328	vbc.exe
Token: SeManageVolumePrivilege	328	vbc.exe
Token: SeImpersonatePrivilege	328	vbc.exe
Token: SeCreateGlobalPrivilege	328	vbc.exe
Token: 33	328	vbc.exe
Token: 34	328	vbc.exe
Token: 35	328	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
328	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30
PID 1192 wrote to memory of 328	1192	4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe	30

C:\Users\Admin\AppData\Local\Temp\4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe
"C:\Users\Admin\AppData\Local\Temp\4cd3d8089e8022eff724e28c0f389b20a921cb500f0d193d74f5cc97ad0d3381.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:328

Network

MITRE ATT&CK Enterprise v15

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

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/328-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-35-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-8-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/328-11-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-6-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-14-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-18-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-32-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-34-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-33-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-5-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-28-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-30-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/328-31-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1192-0-0x0000000074011000-0x0000000074012000-memory.dmp

Filesize
4KB

Download
memory/1192-19-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download
memory/1192-1-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download
memory/1192-2-0x0000000074010000-0x00000000745BB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads