darkcomet | f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13/02/2025, 11:30

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General

Target

f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
Size

520KB
MD5

4c18d944f8c156057cfda97f904bb743
SHA1

a50e76cf7ce363e500d307cc009caddd12720fb0
SHA256

f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c
SHA512

d192c51e5fdf6ed7fe4ac4d9ba77fa0090faee5547a513223fe7c947a123e9903768a84a821deeae1645247eede665532a0c691d389adb46ccb534686c75b390
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbF:f9fC3hh29Ya77A90aFtDfT5IMbF

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

rc4.plain

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
2264	winupd.exe
2092	winupd.exe
2944	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
2264	winupd.exe
2264	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-1-5-21-2039016743-699959520-214465309-1000\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 1624 set thread context of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 2264 set thread context of 2092	2264	winupd.exe	32
PID 2264 set thread context of 2944	2264	winupd.exe	33

UPX packed file 29 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2944-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-77-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2944-99-0x0000000000400000-0x00000000004B7000-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	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.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
2704	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2256	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2944	winupd.exe
Token: SeSecurityPrivilege	2944	winupd.exe
Token: SeTakeOwnershipPrivilege	2944	winupd.exe
Token: SeLoadDriverPrivilege	2944	winupd.exe
Token: SeSystemProfilePrivilege	2944	winupd.exe
Token: SeSystemtimePrivilege	2944	winupd.exe
Token: SeProfSingleProcessPrivilege	2944	winupd.exe
Token: SeIncBasePriorityPrivilege	2944	winupd.exe
Token: SeCreatePagefilePrivilege	2944	winupd.exe
Token: SeBackupPrivilege	2944	winupd.exe
Token: SeRestorePrivilege	2944	winupd.exe
Token: SeShutdownPrivilege	2944	winupd.exe
Token: SeDebugPrivilege	2944	winupd.exe
Token: SeSystemEnvironmentPrivilege	2944	winupd.exe
Token: SeChangeNotifyPrivilege	2944	winupd.exe
Token: SeRemoteShutdownPrivilege	2944	winupd.exe
Token: SeUndockPrivilege	2944	winupd.exe
Token: SeManageVolumePrivilege	2944	winupd.exe
Token: SeImpersonatePrivilege	2944	winupd.exe
Token: SeCreateGlobalPrivilege	2944	winupd.exe
Token: 33	2944	winupd.exe
Token: 34	2944	winupd.exe
Token: 35	2944	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
2264	winupd.exe
2092	winupd.exe
2944	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1624 wrote to memory of 1864	1624	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	30
PID 1864 wrote to memory of 2264	1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	31
PID 1864 wrote to memory of 2264	1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	31
PID 1864 wrote to memory of 2264	1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	31
PID 1864 wrote to memory of 2264	1864	f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe	31
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2092	2264	winupd.exe	32
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2264 wrote to memory of 2944	2264	winupd.exe	33
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2092 wrote to memory of 2704	2092	winupd.exe	34
PID 2704 wrote to memory of 2748	2704	ipconfig.exe	36
PID 2704 wrote to memory of 2748	2704	ipconfig.exe	36
PID 2704 wrote to memory of 2748	2704	ipconfig.exe	36
PID 2704 wrote to memory of 2748	2704	ipconfig.exe	36
PID 2748 wrote to memory of 2256	2748	cmd.exe	38
PID 2748 wrote to memory of 2256	2748	cmd.exe	38
PID 2748 wrote to memory of 2256	2748	cmd.exe	38
PID 2748 wrote to memory of 2256	2748	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
"C:\Users\Admin\AppData\Local\Temp\f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe
  "C:\Users\Admin\AppData\Local\Temp\f0fb605298ffdf2f95938c75c128503c8fac451580a4fee7e0c8cfc19aad921c.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1864
- - 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:2264
  - - 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:2092
    - - 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:2704
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\ANJXWMWP.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2748
        
        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:2256
  - - 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:2944

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

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Downloads

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

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
d13bd5b30cd0e3a0c4b19dd5c5400bdb

SHA1
255f913545203bd66b10c97bbd8559964cafa6df

SHA256
fca1238865fb22bde34a53d483358e2f1f5c52361228d5754c86aefb6d969bb8

SHA512
b6df0208d5d065f391d4552f9bdebe220bd7fc071e345ef4622e930312b4e4d5284cf81a0974f468c2d01637527856b018886f5cf89c70934f7b9111c3570e85

Download Submit
memory/1624-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1624-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1624-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1624-16-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1624-82-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1864-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1864-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1864-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1864-65-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1864-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1864-14-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2092-81-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2264-32-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2264-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2264-62-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2704-69-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2944-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2944-99-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads