darkcomet | d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20/10/2022, 21:50

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General

Target

d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Size

252KB
MD5

80ee1d2c1f89410dcc731a0bfbcf152f
SHA1

3e1963010c9439a99a50963c71e6a5c270789bec
SHA256

d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a
SHA512

4b3a1ce143b167905b615702b11b17a71f929e31a248410a55be061a1b46d4036713a25bc0355bffbeb6428a70290a01180883b11ccbcdbd7942e9f8abbeddb3
SSDEEP

6144:6cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQd:6cWkbgTYWnYnt/IDYhP8

Score

10^/10

darkcomet ds persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

safa-kach.no-ip.biz:1604

94.153.58.76:81

Mutex

DC_MUTEX-DB61LF1

Attributes

InstallPath
MSDCSC\vk.exe
gencode
JE7Mrb31ojWV
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

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\\vk.exe"	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe

Executes dropped EXE 1 IoCs

pid	Process
4948	vk.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4720-132-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-133-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/files/0x0009000000022e2c-135.dat	upx
behavioral2/files/0x0009000000022e2c-136.dat	upx
behavioral2/memory/4948-137-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4720-138-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\vk.exe"	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\vk.exe"	vk.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeSecurityPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeTakeOwnershipPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeLoadDriverPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeSystemProfilePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeSystemtimePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeProfSingleProcessPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeIncBasePriorityPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeCreatePagefilePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeBackupPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeRestorePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeShutdownPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeDebugPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeSystemEnvironmentPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeChangeNotifyPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeRemoteShutdownPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeUndockPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeManageVolumePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeImpersonatePrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeCreateGlobalPrivilege	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: 33	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: 34	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: 35	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: 36	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
Token: SeIncreaseQuotaPrivilege	4948	vk.exe
Token: SeSecurityPrivilege	4948	vk.exe
Token: SeTakeOwnershipPrivilege	4948	vk.exe
Token: SeLoadDriverPrivilege	4948	vk.exe
Token: SeSystemProfilePrivilege	4948	vk.exe
Token: SeSystemtimePrivilege	4948	vk.exe
Token: SeProfSingleProcessPrivilege	4948	vk.exe
Token: SeIncBasePriorityPrivilege	4948	vk.exe
Token: SeCreatePagefilePrivilege	4948	vk.exe
Token: SeBackupPrivilege	4948	vk.exe
Token: SeRestorePrivilege	4948	vk.exe
Token: SeShutdownPrivilege	4948	vk.exe
Token: SeDebugPrivilege	4948	vk.exe
Token: SeSystemEnvironmentPrivilege	4948	vk.exe
Token: SeChangeNotifyPrivilege	4948	vk.exe
Token: SeRemoteShutdownPrivilege	4948	vk.exe
Token: SeUndockPrivilege	4948	vk.exe
Token: SeManageVolumePrivilege	4948	vk.exe
Token: SeImpersonatePrivilege	4948	vk.exe
Token: SeCreateGlobalPrivilege	4948	vk.exe
Token: 33	4948	vk.exe
Token: 34	4948	vk.exe
Token: 35	4948	vk.exe
Token: 36	4948	vk.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4948	vk.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 4948	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe	83
PID 4720 wrote to memory of 4948	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe	83
PID 4720 wrote to memory of 4948	4720	d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe	83

C:\Users\Admin\AppData\Local\Temp\d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe
"C:\Users\Admin\AppData\Local\Temp\d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Users\Admin\Documents\MSDCSC\vk.exe
  "C:\Users\Admin\Documents\MSDCSC\vk.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
252KB

MD5
80ee1d2c1f89410dcc731a0bfbcf152f

SHA1
3e1963010c9439a99a50963c71e6a5c270789bec

SHA256
d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a

SHA512
4b3a1ce143b167905b615702b11b17a71f929e31a248410a55be061a1b46d4036713a25bc0355bffbeb6428a70290a01180883b11ccbcdbd7942e9f8abbeddb3

Download Submit
C:\Users\Admin\Documents\MSDCSC\vk.exe

Filesize
252KB

MD5
80ee1d2c1f89410dcc731a0bfbcf152f

SHA1
3e1963010c9439a99a50963c71e6a5c270789bec

SHA256
d7d561cdef5634262f49cebbd1bca1a5dabd063bb2073cb52589f510a0370b7a

SHA512
4b3a1ce143b167905b615702b11b17a71f929e31a248410a55be061a1b46d4036713a25bc0355bffbeb6428a70290a01180883b11ccbcdbd7942e9f8abbeddb3

Download Submit
memory/4720-132-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-133-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4720-138-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4948-137-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads