darkcomet | b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1

Analysis

max time kernel
120s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 02:07

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General

Target

b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
Size

520KB
MD5

c67c2c9a29f3fa23769ac044b83a0b80
SHA1

4234fff35b88e9ebf5eea74133c56c4cdc112c70
SHA256

b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1
SHA512

b1ba2e9e95517c1c3dded027c4d8448655f8f2bfc757aff74435e89c3f5cd427fb231938dc27208c9b1fec760713ccbd5b1dd1905db37f59a2316392a00a8b62
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbb:f9fC3hh29Ya77A90aFtDfT5IMbb

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
2020	winupd.exe
2864	winupd.exe
2772	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.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-1-5-21-3290804112-2823094203-3137964600-1000\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 1268 set thread context of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 2020 set thread context of 2864	2020	winupd.exe	32
PID 2020 set thread context of 2772	2020	winupd.exe	33

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2772-92-0x0000000000400000-0x00000000004B7000-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	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	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.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
2848	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2636	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2772	winupd.exe
Token: SeSecurityPrivilege	2772	winupd.exe
Token: SeTakeOwnershipPrivilege	2772	winupd.exe
Token: SeLoadDriverPrivilege	2772	winupd.exe
Token: SeSystemProfilePrivilege	2772	winupd.exe
Token: SeSystemtimePrivilege	2772	winupd.exe
Token: SeProfSingleProcessPrivilege	2772	winupd.exe
Token: SeIncBasePriorityPrivilege	2772	winupd.exe
Token: SeCreatePagefilePrivilege	2772	winupd.exe
Token: SeBackupPrivilege	2772	winupd.exe
Token: SeRestorePrivilege	2772	winupd.exe
Token: SeShutdownPrivilege	2772	winupd.exe
Token: SeDebugPrivilege	2772	winupd.exe
Token: SeSystemEnvironmentPrivilege	2772	winupd.exe
Token: SeChangeNotifyPrivilege	2772	winupd.exe
Token: SeRemoteShutdownPrivilege	2772	winupd.exe
Token: SeUndockPrivilege	2772	winupd.exe
Token: SeManageVolumePrivilege	2772	winupd.exe
Token: SeImpersonatePrivilege	2772	winupd.exe
Token: SeCreateGlobalPrivilege	2772	winupd.exe
Token: 33	2772	winupd.exe
Token: 34	2772	winupd.exe
Token: 35	2772	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
2020	winupd.exe
2864	winupd.exe
2772	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 1268 wrote to memory of 2212	1268	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	30
PID 2212 wrote to memory of 2020	2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	31
PID 2212 wrote to memory of 2020	2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	31
PID 2212 wrote to memory of 2020	2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	31
PID 2212 wrote to memory of 2020	2212	b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe	31
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2864	2020	winupd.exe	32
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2020 wrote to memory of 2772	2020	winupd.exe	33
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2864 wrote to memory of 2848	2864	winupd.exe	34
PID 2848 wrote to memory of 2744	2848	ipconfig.exe	36
PID 2848 wrote to memory of 2744	2848	ipconfig.exe	36
PID 2848 wrote to memory of 2744	2848	ipconfig.exe	36
PID 2848 wrote to memory of 2744	2848	ipconfig.exe	36
PID 2744 wrote to memory of 2636	2744	cmd.exe	38
PID 2744 wrote to memory of 2636	2744	cmd.exe	38
PID 2744 wrote to memory of 2636	2744	cmd.exe	38
PID 2744 wrote to memory of 2636	2744	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
"C:\Users\Admin\AppData\Local\Temp\b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe
  "C:\Users\Admin\AppData\Local\Temp\b79da754145337d758de451bca3553d3f91cbe9e109be1d22047eaec613d54f1N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - 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:2864
    - - 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:2848
      - 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:2744
        
        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:2636
  - - 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:2772

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
c7c3c51c507af62ec8b0ad60bc87caf0

SHA1
8ab77bc62ae43153b96ff992380fb2e7e81605e7

SHA256
df0f9f5e7d29178969304f004639de4299e283981605f97c3964a7d861b795de

SHA512
a8de03dc5d8b3e510d9d48a79336a26e800aeccb6c4648666d68145b28458f0ba552538cb47c2712236288be93c075411a0795fe0af1975b15240742e60e69c6

Download Submit
memory/1268-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1268-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-20-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1268-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1268-16-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1268-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2020-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2020-45-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2020-68-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2212-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2212-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2212-9-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2212-74-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2212-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2212-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2772-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2848-63-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2864-80-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads