darkcomet | 5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/01/2025, 23:34

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General

Target

5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
Size

520KB
MD5

ef9bde652f3f2ef3dd6899cb39e48130
SHA1

c6a2673bb81ea5df6126c0ce486464f9ffc2545d
SHA256

5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6
SHA512

9e30484886e7d8a3063378c0d31a95409717a1ebd0b49eb4ea719788b39cff0ecad53974a7fe7b56bd832a862c37fa00cea2afc65ee1160e434f2da9efe4a9df
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbh:f9fC3hh29Ya77A90aFtDfT5IMbh

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
2964	winupd.exe
2584	winupd.exe
2564	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2156 set thread context of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2964 set thread context of 2584	2964	winupd.exe	32
PID 2964 set thread context of 2564	2964	winupd.exe	33

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2564-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2564-93-0x0000000000400000-0x00000000004B7000-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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.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

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
1484	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2992	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2564	winupd.exe
Token: SeSecurityPrivilege	2564	winupd.exe
Token: SeTakeOwnershipPrivilege	2564	winupd.exe
Token: SeLoadDriverPrivilege	2564	winupd.exe
Token: SeSystemProfilePrivilege	2564	winupd.exe
Token: SeSystemtimePrivilege	2564	winupd.exe
Token: SeProfSingleProcessPrivilege	2564	winupd.exe
Token: SeIncBasePriorityPrivilege	2564	winupd.exe
Token: SeCreatePagefilePrivilege	2564	winupd.exe
Token: SeBackupPrivilege	2564	winupd.exe
Token: SeRestorePrivilege	2564	winupd.exe
Token: SeShutdownPrivilege	2564	winupd.exe
Token: SeDebugPrivilege	2564	winupd.exe
Token: SeSystemEnvironmentPrivilege	2564	winupd.exe
Token: SeChangeNotifyPrivilege	2564	winupd.exe
Token: SeRemoteShutdownPrivilege	2564	winupd.exe
Token: SeUndockPrivilege	2564	winupd.exe
Token: SeManageVolumePrivilege	2564	winupd.exe
Token: SeImpersonatePrivilege	2564	winupd.exe
Token: SeCreateGlobalPrivilege	2564	winupd.exe
Token: 33	2564	winupd.exe
Token: 34	2564	winupd.exe
Token: 35	2564	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
2964	winupd.exe
2584	winupd.exe
2564	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2156 wrote to memory of 2712	2156	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	30
PID 2712 wrote to memory of 2964	2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	31
PID 2712 wrote to memory of 2964	2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	31
PID 2712 wrote to memory of 2964	2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	31
PID 2712 wrote to memory of 2964	2712	5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe	31
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2584	2964	winupd.exe	32
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2964 wrote to memory of 2564	2964	winupd.exe	33
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 2584 wrote to memory of 1484	2584	winupd.exe	34
PID 1484 wrote to memory of 2316	1484	ipconfig.exe	36
PID 1484 wrote to memory of 2316	1484	ipconfig.exe	36
PID 1484 wrote to memory of 2316	1484	ipconfig.exe	36
PID 1484 wrote to memory of 2316	1484	ipconfig.exe	36
PID 2316 wrote to memory of 2992	2316	cmd.exe	38
PID 2316 wrote to memory of 2992	2316	cmd.exe	38
PID 2316 wrote to memory of 2992	2316	cmd.exe	38
PID 2316 wrote to memory of 2992	2316	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
"C:\Users\Admin\AppData\Local\Temp\5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe
  "C:\Users\Admin\AppData\Local\Temp\5ca4e0ff5d89afc615b182b55b62398caef27525dd6ba7827c44fb7e1ed138c6N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2712
- - 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:2964
  - - 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:2584
    - - 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:1484
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\YFXIUTUQ.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2316
        
        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:2992
  - - 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:2564

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\YFXIUTUQ.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
855f665c79b6271d5c16959e109d8952

SHA1
3bccb61167ed6bf8e55772cafa8d373673692015

SHA256
dc0a95c41c4cfbe9a63260ac9c0af17cab21a3a11d4f08831f99fdc2e4ac5057

SHA512
83274b4e9c674f6d9a485219b6fba2218f0565cf441c26e7c80f8c6b8b8aa2a6aba4655178fd51f52af5403f537da4fca0d7b1bc1d11ddc7d72dd47602c92232

Download Submit
memory/1484-69-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2156-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2156-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2156-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2156-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2564-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2584-80-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2712-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2712-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2712-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2712-65-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2712-18-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2964-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2964-46-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2964-62-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads