darkcomet | cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051

Analysis

max time kernel
120s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 05:20

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General

Target

cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe
Size

520KB
MD5

a72a5a91dc86a5d585d6f3b6ada76260
SHA1

0e62d8aa5d2edebaa7ea75c591727b9a3832fb8e
SHA256

cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051
SHA512

6c6fc2933229cfba09de38f38f149f8903d4b7e36552818d47e79227fd5a96e5e44a32b08cfafda613cf181e41f1167bbde60f3672e0154764e0ac1e53cd312e
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb4:f9fC3hh29Ya77A90aFtDfT5IMb4

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

pid	Process
2476	winupd.exe
4156	winupd.exe
3600	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3504 set thread context of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 2476 set thread context of 4156	2476	winupd.exe	93
PID 2476 set thread context of 3600	2476	winupd.exe	94

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3600-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3600-51-0x0000000000400000-0x00000000004B7000-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

pid	pid_target	Process	procid_target
3716	3832	WerFault.exe	95

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.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	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.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
3832	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3600	winupd.exe
Token: SeSecurityPrivilege	3600	winupd.exe
Token: SeTakeOwnershipPrivilege	3600	winupd.exe
Token: SeLoadDriverPrivilege	3600	winupd.exe
Token: SeSystemProfilePrivilege	3600	winupd.exe
Token: SeSystemtimePrivilege	3600	winupd.exe
Token: SeProfSingleProcessPrivilege	3600	winupd.exe
Token: SeIncBasePriorityPrivilege	3600	winupd.exe
Token: SeCreatePagefilePrivilege	3600	winupd.exe
Token: SeBackupPrivilege	3600	winupd.exe
Token: SeRestorePrivilege	3600	winupd.exe
Token: SeShutdownPrivilege	3600	winupd.exe
Token: SeDebugPrivilege	3600	winupd.exe
Token: SeSystemEnvironmentPrivilege	3600	winupd.exe
Token: SeChangeNotifyPrivilege	3600	winupd.exe
Token: SeRemoteShutdownPrivilege	3600	winupd.exe
Token: SeUndockPrivilege	3600	winupd.exe
Token: SeManageVolumePrivilege	3600	winupd.exe
Token: SeImpersonatePrivilege	3600	winupd.exe
Token: SeCreateGlobalPrivilege	3600	winupd.exe
Token: 33	3600	winupd.exe
Token: 34	3600	winupd.exe
Token: 35	3600	winupd.exe
Token: 36	3600	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe
2624	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe
2476	winupd.exe
4156	winupd.exe
3600	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 3504 wrote to memory of 2624	3504	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	89
PID 2624 wrote to memory of 2476	2624	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	90
PID 2624 wrote to memory of 2476	2624	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	90
PID 2624 wrote to memory of 2476	2624	cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe	90
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 4156	2476	winupd.exe	93
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 2476 wrote to memory of 3600	2476	winupd.exe	94
PID 4156 wrote to memory of 3832	4156	winupd.exe	95
PID 4156 wrote to memory of 3832	4156	winupd.exe	95
PID 4156 wrote to memory of 3832	4156	winupd.exe	95
PID 4156 wrote to memory of 3832	4156	winupd.exe	95
PID 4156 wrote to memory of 3832	4156	winupd.exe	95

C:\Users\Admin\AppData\Local\Temp\cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe
"C:\Users\Admin\AppData\Local\Temp\cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Users\Admin\AppData\Local\Temp\cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe
  "C:\Users\Admin\AppData\Local\Temp\cbb9963d25ed9878a8d94703f6687164b4652dde6705bed732c7494f3968f051N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2624
- - 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:2476
  - - 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:4156
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:3832
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3832 -s 272
        6⤵
        Program crash
        
        PID:3716
  - - 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:3600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3832 -ip 3832
1⤵
PID:1856

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
762acac943f905a1422f0e3033280844

SHA1
276abae3dd65bbaa60025dd8f1bf7d9706f9ca1f

SHA256
aadbe2ab155c2eeb549bb71d56ade55497b4c097a645021a2656cf7a257664f2

SHA512
a6506c73c469670473d1c96d4cd7460bdc298d04d0df089137c2618e2945f3f12c250c72fff67ced91f96d65d9ad33cf639a686caf9633df34d822ccdd2d62f2

Download Submit
memory/2476-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2476-24-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2476-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2624-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2624-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2624-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2624-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3504-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3504-11-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3504-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3504-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3504-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3600-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3600-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4156-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download