darkcomet | 57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 14:57

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General

Target

57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
Size

520KB
MD5

e8bca826a31021429c0a69228bd6d3a0
SHA1

cb7511bd838dc09a300fdac51e7be78da3bb9417
SHA256

57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476
SHA512

e0a6b38c11a65d225ced509756db7efd56f7eaff01b0225e6b21ccc8928cbd594f4301f4f09ebd18144deba1b729be5ac99c8a89eabacce2fe8d2b9ea61bc4aa
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbW:f9fC3hh29Ya77A90aFtDfT5IMbW

Score

10^/10

darkcomet privateeye discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes

gencode
8GG5LVVGljSF
install
false
offline_keylogger
true
persistence
false

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2084	winupd.exe
2196	winupd.exe
2824	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
2084	winupd.exe
2084	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 2084 set thread context of 2196	2084	winupd.exe	32
PID 2084 set thread context of 2824	2084	winupd.exe	33

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2824-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2824-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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 8 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	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2780	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1412	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2824	winupd.exe
Token: SeSecurityPrivilege	2824	winupd.exe
Token: SeTakeOwnershipPrivilege	2824	winupd.exe
Token: SeLoadDriverPrivilege	2824	winupd.exe
Token: SeSystemProfilePrivilege	2824	winupd.exe
Token: SeSystemtimePrivilege	2824	winupd.exe
Token: SeProfSingleProcessPrivilege	2824	winupd.exe
Token: SeIncBasePriorityPrivilege	2824	winupd.exe
Token: SeCreatePagefilePrivilege	2824	winupd.exe
Token: SeBackupPrivilege	2824	winupd.exe
Token: SeRestorePrivilege	2824	winupd.exe
Token: SeShutdownPrivilege	2824	winupd.exe
Token: SeDebugPrivilege	2824	winupd.exe
Token: SeSystemEnvironmentPrivilege	2824	winupd.exe
Token: SeChangeNotifyPrivilege	2824	winupd.exe
Token: SeRemoteShutdownPrivilege	2824	winupd.exe
Token: SeUndockPrivilege	2824	winupd.exe
Token: SeManageVolumePrivilege	2824	winupd.exe
Token: SeImpersonatePrivilege	2824	winupd.exe
Token: SeCreateGlobalPrivilege	2824	winupd.exe
Token: 33	2824	winupd.exe
Token: 34	2824	winupd.exe
Token: 35	2824	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
2084	winupd.exe
2824	winupd.exe
2196	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1732 wrote to memory of 1056	1732	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	30
PID 1056 wrote to memory of 2084	1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	31
PID 1056 wrote to memory of 2084	1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	31
PID 1056 wrote to memory of 2084	1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	31
PID 1056 wrote to memory of 2084	1056	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	31
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2196	2084	winupd.exe	32
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2084 wrote to memory of 2824	2084	winupd.exe	33
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2196 wrote to memory of 2780	2196	winupd.exe	34
PID 2780 wrote to memory of 2676	2780	ipconfig.exe	36
PID 2780 wrote to memory of 2676	2780	ipconfig.exe	36
PID 2780 wrote to memory of 2676	2780	ipconfig.exe	36
PID 2780 wrote to memory of 2676	2780	ipconfig.exe	36
PID 2676 wrote to memory of 1412	2676	cmd.exe	38
PID 2676 wrote to memory of 1412	2676	cmd.exe	38
PID 2676 wrote to memory of 1412	2676	cmd.exe	38
PID 2676 wrote to memory of 1412	2676	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
"C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
  "C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2084
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2196
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Gathers network information
        Suspicious use of WriteProcessMemory
        
        PID:2780
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\UXMGFMVL.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2676
        
        C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
        7⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:1412
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\UXMGFMVL.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
77be0ca0c0751c7ecdff593a56601f69

SHA1
3ab3d4ea2f72c4120baefea5f2af69feaaa7ae57

SHA256
c50161ec113b145996d18f7785871914f7c3108ca3997c24ec5fb345f1b84aa8

SHA512
0861ec5070bcbb981894b894ac74ef0678d58d770545650a657a917885456b1e562644d489cccf6cbe01aeb3d52bd83f4fe2fd576efd96c5ce79f07361c71719

Download Submit
memory/1056-66-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1056-14-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1732-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1732-18-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1732-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1732-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2084-32-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2084-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2084-61-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2084-62-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2196-84-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2780-77-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2824-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2824-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads