darkcomet | 85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

Analysis

max time kernel
222s
max time network
168s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23/11/2022, 18:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Size

261KB
MD5

4530a82649bd16a3a7baa70faa1caa50
SHA1

f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166
SHA256

85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc
SHA512

3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30
SSDEEP

6144:Hco4dnaXTsWxDcQHlemO9fRI6oh/h8oGWINlmR9wryQ:8PnaDskYaAmU66yh5GHD09AyQ

Score

10^/10

darkcomet hack aspackv2 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

hack

bikaalov.noip.me:1604

Mutex

DC_MUTEX-7G2PFJD

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
tKukSM5w3M83
install
true
offline_keylogger
true
persistence
false
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\\msdcsc.exe"	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

ASPack v2.12-2.42 5 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000800000001412f-69.dat	aspack_v212_v242
behavioral1/files/0x000800000001412f-70.dat	aspack_v212_v242
behavioral1/files/0x000800000001412f-72.dat	aspack_v212_v242
behavioral1/files/0x000800000001412f-75.dat	aspack_v212_v242
behavioral1/files/0x000800000001412f-82.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
1768	msdcsc.exe
1684	msdcsc.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/904-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/904-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1684-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 944 set thread context of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 1768 set thread context of 1684	1768	msdcsc.exe	30

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 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeSecurityPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeTakeOwnershipPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeLoadDriverPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeSystemProfilePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeSystemtimePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeProfSingleProcessPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeIncBasePriorityPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeCreatePagefilePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeBackupPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeRestorePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeShutdownPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeDebugPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeSystemEnvironmentPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeChangeNotifyPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeRemoteShutdownPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeUndockPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeManageVolumePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeImpersonatePrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeCreateGlobalPrivilege	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: 33	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: 34	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: 35	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
Token: SeIncreaseQuotaPrivilege	1684	msdcsc.exe
Token: SeSecurityPrivilege	1684	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1684	msdcsc.exe
Token: SeLoadDriverPrivilege	1684	msdcsc.exe
Token: SeSystemProfilePrivilege	1684	msdcsc.exe
Token: SeSystemtimePrivilege	1684	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1684	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1684	msdcsc.exe
Token: SeCreatePagefilePrivilege	1684	msdcsc.exe
Token: SeBackupPrivilege	1684	msdcsc.exe
Token: SeRestorePrivilege	1684	msdcsc.exe
Token: SeShutdownPrivilege	1684	msdcsc.exe
Token: SeDebugPrivilege	1684	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1684	msdcsc.exe
Token: SeChangeNotifyPrivilege	1684	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1684	msdcsc.exe
Token: SeUndockPrivilege	1684	msdcsc.exe
Token: SeManageVolumePrivilege	1684	msdcsc.exe
Token: SeImpersonatePrivilege	1684	msdcsc.exe
Token: SeCreateGlobalPrivilege	1684	msdcsc.exe
Token: 33	1684	msdcsc.exe
Token: 34	1684	msdcsc.exe
Token: 35	1684	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
1768	msdcsc.exe
1684	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 944 wrote to memory of 904	944	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	28
PID 904 wrote to memory of 1768	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	29
PID 904 wrote to memory of 1768	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	29
PID 904 wrote to memory of 1768	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	29
PID 904 wrote to memory of 1768	904	85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe	29
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30
PID 1768 wrote to memory of 1684	1768	msdcsc.exe	30

C:\Users\Admin\AppData\Local\Temp\85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
"C:\Users\Admin\AppData\Local\Temp\85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Local\Temp\85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1768
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Modifies firewall policy service
      Windows security bypass
      Executes dropped EXE
      Windows security modification
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
261KB

MD5
4530a82649bd16a3a7baa70faa1caa50

SHA1
f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166

SHA256
85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

SHA512
3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30

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

Filesize
261KB

MD5
4530a82649bd16a3a7baa70faa1caa50

SHA1
f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166

SHA256
85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

SHA512
3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30

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

Filesize
261KB

MD5
4530a82649bd16a3a7baa70faa1caa50

SHA1
f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166

SHA256
85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

SHA512
3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
261KB

MD5
4530a82649bd16a3a7baa70faa1caa50

SHA1
f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166

SHA256
85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

SHA512
3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
261KB

MD5
4530a82649bd16a3a7baa70faa1caa50

SHA1
f9ce0ceaa7bccf18ef23570e0d550d9b43e9e166

SHA256
85fdde2e17ec0b56ce564a98c6220745c6950f44932abe5dce5cba66605db2bc

SHA512
3721f299f303b8c040a43a020a09fb55ef412b59d597e1bc6b8a3e5bc886afc44859832693c45e6eef5ff0f5d83760f81bb78bb59c5b3c7d656f277b5b63fb30

Download Submit
memory/904-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-64-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/904-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-85-0x0000000004EC0000-0x0000000004EC8000-memory.dmp

Filesize
32KB

Download
memory/904-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/904-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/944-63-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1684-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1684-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1768-83-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads