darkcomet | b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-10-2024 09:25

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General

Target

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
Size

520KB
MD5

74b0b03fff3d28b89f0e8027d8142530
SHA1

4c8d197f26635b263ac7200b9d0c8283b1d07351
SHA256

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893
SHA512

0922391e521f1b656230016382a2a684c9cbe96f45a5a291c99b93ee508c4d9344423c1144b37a968db94fa96ddc14213a16c2926c6f12c32dd59d87d9227856
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbQ:f9fC3hh29Ya77A90aFtDfT5IMbQ

Score

10^/10

darkcomet privateeye discovery 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
2240	winupd.exe
64	winupd.exe
2284	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exe

description	pid	Process	procid_target
PID 3960 set thread context of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 2240 set thread context of 64	2240	winupd.exe	102
PID 2240 set thread context of 2284	2240	winupd.exe	103

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2284-30-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2284-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1124	1316	WerFault.exe	104

System Location Discovery: System Language Discovery 1 TTPs 5 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:

winupd.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.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
1316	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

winupd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2284	winupd.exe
Token: SeSecurityPrivilege	2284	winupd.exe
Token: SeTakeOwnershipPrivilege	2284	winupd.exe
Token: SeLoadDriverPrivilege	2284	winupd.exe
Token: SeSystemProfilePrivilege	2284	winupd.exe
Token: SeSystemtimePrivilege	2284	winupd.exe
Token: SeProfSingleProcessPrivilege	2284	winupd.exe
Token: SeIncBasePriorityPrivilege	2284	winupd.exe
Token: SeCreatePagefilePrivilege	2284	winupd.exe
Token: SeBackupPrivilege	2284	winupd.exe
Token: SeRestorePrivilege	2284	winupd.exe
Token: SeShutdownPrivilege	2284	winupd.exe
Token: SeDebugPrivilege	2284	winupd.exe
Token: SeSystemEnvironmentPrivilege	2284	winupd.exe
Token: SeChangeNotifyPrivilege	2284	winupd.exe
Token: SeRemoteShutdownPrivilege	2284	winupd.exe
Token: SeUndockPrivilege	2284	winupd.exe
Token: SeManageVolumePrivilege	2284	winupd.exe
Token: SeImpersonatePrivilege	2284	winupd.exe
Token: SeCreateGlobalPrivilege	2284	winupd.exe
Token: 33	2284	winupd.exe
Token: 34	2284	winupd.exe
Token: 35	2284	winupd.exe
Token: 36	2284	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exewinupd.exe

pid	Process
3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
4572	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
2240	winupd.exe
64	winupd.exe
2284	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exe

description	pid	Process	procid_target
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3960 wrote to memory of 4572	3960	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 4572 wrote to memory of 2240	4572	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 4572 wrote to memory of 2240	4572	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 4572 wrote to memory of 2240	4572	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 64	2240	winupd.exe	102
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 2240 wrote to memory of 2284	2240	winupd.exe	103
PID 64 wrote to memory of 1316	64	winupd.exe	104
PID 64 wrote to memory of 1316	64	winupd.exe	104
PID 64 wrote to memory of 1316	64	winupd.exe	104
PID 64 wrote to memory of 1316	64	winupd.exe	104
PID 64 wrote to memory of 1316	64	winupd.exe	104

C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
"C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
  "C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4572
- - 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:2240
  - - 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:64
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:1316
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1316 -s 272
        6⤵
        Program crash
        
        PID:1124
  - - 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:2284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1316 -ip 1316
1⤵
PID:4016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

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\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
a5ec66cdde8727295099a0f1b8b52484

SHA1
4cb4831b2ab4471e25dc2244d107a21639a5f228

SHA256
b0e831cd45c7dad7308f8916d6be0e6ffe71b83e223bbf855ac5f615521de653

SHA512
965c2c039b6b46932e44d69224db86cf3c6dd52b517951791be1948655477c7b0ce52b671bbca275e1f56b768f547aeffd573e74561af3a90ef61ae1f85cef40

Download Submit
memory/64-43-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/64-36-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2240-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2240-28-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2240-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2284-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2284-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3960-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3960-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3960-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3960-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3960-10-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4572-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4572-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4572-22-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4572-19-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download