darkcomet | f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412c

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30-10-2024 16:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
Size

520KB
MD5

71d6aa005f8301a928a662cd1a29a670
SHA1

1492c92637ea6d8a2fe99f5cd2ee0811ce450088
SHA256

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412c
SHA512

7bcd890f52f26f3dad3d722f47d33e7647b076cb3326e88a3b0cb3b8ef536ed30783a5e4ee7bde824554a33e1759cde3381e1ee4e1ae20557b272214efe7ee1c
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbv:f9fC3hh29Ya77A90aFtDfT5IMbv

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

Processes:

winupd.exewinupd.exewinupd.exe

pid	Process
2928	winupd.exe
2796	winupd.exe
112	winupd.exe

Loads dropped DLL 4 IoCs

Processes:

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exewinupd.exe

pid	Process
2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
2928	winupd.exe
2928	winupd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exewinupd.exe

description	pid	Process	procid_target
PID 2932 set thread context of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2928 set thread context of 2796	2928	winupd.exe	32
PID 2928 set thread context of 112	2928	winupd.exe	33

UPX packed file 24 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/112-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/112-94-0x0000000000400000-0x00000000004B7000-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

Processes:

ipconfig.execmd.exereg.exef998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exef998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exewinupd.exewinupd.exewinupd.exe

description	ioc	Process
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	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.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

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

Processes:

ipconfig.exe

pid	Process
1392	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

Processes:

reg.exe

pid	Process
2104	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

winupd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	112	winupd.exe
Token: SeSecurityPrivilege	112	winupd.exe
Token: SeTakeOwnershipPrivilege	112	winupd.exe
Token: SeLoadDriverPrivilege	112	winupd.exe
Token: SeSystemProfilePrivilege	112	winupd.exe
Token: SeSystemtimePrivilege	112	winupd.exe
Token: SeProfSingleProcessPrivilege	112	winupd.exe
Token: SeIncBasePriorityPrivilege	112	winupd.exe
Token: SeCreatePagefilePrivilege	112	winupd.exe
Token: SeBackupPrivilege	112	winupd.exe
Token: SeRestorePrivilege	112	winupd.exe
Token: SeShutdownPrivilege	112	winupd.exe
Token: SeDebugPrivilege	112	winupd.exe
Token: SeSystemEnvironmentPrivilege	112	winupd.exe
Token: SeChangeNotifyPrivilege	112	winupd.exe
Token: SeRemoteShutdownPrivilege	112	winupd.exe
Token: SeUndockPrivilege	112	winupd.exe
Token: SeManageVolumePrivilege	112	winupd.exe
Token: SeImpersonatePrivilege	112	winupd.exe
Token: SeCreateGlobalPrivilege	112	winupd.exe
Token: 33	112	winupd.exe
Token: 34	112	winupd.exe
Token: 35	112	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exef998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exewinupd.exewinupd.exewinupd.exe

pid	Process
2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
2928	winupd.exe
2796	winupd.exe
112	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exef998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exewinupd.exewinupd.exeipconfig.execmd.exe

description	pid	Process	procid_target
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2932 wrote to memory of 2972	2932	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	30
PID 2972 wrote to memory of 2928	2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	31
PID 2972 wrote to memory of 2928	2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	31
PID 2972 wrote to memory of 2928	2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	31
PID 2972 wrote to memory of 2928	2972	f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe	31
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 2796	2928	winupd.exe	32
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2928 wrote to memory of 112	2928	winupd.exe	33
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 2796 wrote to memory of 1392	2796	winupd.exe	34
PID 1392 wrote to memory of 2188	1392	ipconfig.exe	36
PID 1392 wrote to memory of 2188	1392	ipconfig.exe	36
PID 1392 wrote to memory of 2188	1392	ipconfig.exe	36
PID 1392 wrote to memory of 2188	1392	ipconfig.exe	36
PID 2188 wrote to memory of 2104	2188	cmd.exe	38
PID 2188 wrote to memory of 2104	2188	cmd.exe	38
PID 2188 wrote to memory of 2104	2188	cmd.exe	38
PID 2188 wrote to memory of 2104	2188	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
"C:\Users\Admin\AppData\Local\Temp\f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe
  "C:\Users\Admin\AppData\Local\Temp\f998eebd42b69027db13dc886cc38eed498b06b29b81968efebe4a4b2c1c412cN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2972
- - 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:2928
  - - 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:2796
    - - 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:1392
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\YEXHTSUP.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2188
        
        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:2104
  - - 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:112

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
c4fe746e69397934e400dd96569b1565

SHA1
1d5e15aab428bf1a13f6e78820d4f5e029cb2e85

SHA256
d9512872c130343bdc59c4e089d3fbcb87a4271765681ceca01d8e20adb2005d

SHA512
a30f25fd632f15bf558e3d1b9192361928158c6e02ede82d5d77740f9a89af87d2cd0e2f3ab3ef682e5e409c69b493c40c77febb68c3d1f4ebd59872f4b6dd93

Download Submit
memory/112-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/112-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1392-70-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2796-81-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2928-66-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2928-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2928-36-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2932-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2932-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2932-18-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2932-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2932-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2972-15-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-9-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-65-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download