darkcomet | f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2024 16:27

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General

Target

f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
Size

520KB
MD5

fd70e2db35cfb4f56df1dd49f0846190
SHA1

3c398665ec66a57c213d82ffb53c41cc6574007c
SHA256

f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967
SHA512

edad6a9a96075f8eaf672373617876ae79911fb55ee311864e7556d4f12de038e0da879c91f37ecdff7e18db48e56ecec94d4c5c607b190d817c0746b452b217
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbF:f9fC3hh29Ya77A90aFtDfT5IMbF

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

Executes dropped EXE 3 IoCs

pid	Process
4620	winupd.exe
3240	winupd.exe
1868	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 4620 set thread context of 3240	4620	winupd.exe	104
PID 4620 set thread context of 1868	4620	winupd.exe	105

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1868-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-36-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-33-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1868-53-0x0000000000400000-0x00000000004B7000-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
3928	928	WerFault.exe

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	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.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

pid	Process
928	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1868	winupd.exe
Token: SeSecurityPrivilege	1868	winupd.exe
Token: SeTakeOwnershipPrivilege	1868	winupd.exe
Token: SeLoadDriverPrivilege	1868	winupd.exe
Token: SeSystemProfilePrivilege	1868	winupd.exe
Token: SeSystemtimePrivilege	1868	winupd.exe
Token: SeProfSingleProcessPrivilege	1868	winupd.exe
Token: SeIncBasePriorityPrivilege	1868	winupd.exe
Token: SeCreatePagefilePrivilege	1868	winupd.exe
Token: SeBackupPrivilege	1868	winupd.exe
Token: SeRestorePrivilege	1868	winupd.exe
Token: SeShutdownPrivilege	1868	winupd.exe
Token: SeDebugPrivilege	1868	winupd.exe
Token: SeSystemEnvironmentPrivilege	1868	winupd.exe
Token: SeChangeNotifyPrivilege	1868	winupd.exe
Token: SeRemoteShutdownPrivilege	1868	winupd.exe
Token: SeUndockPrivilege	1868	winupd.exe
Token: SeManageVolumePrivilege	1868	winupd.exe
Token: SeImpersonatePrivilege	1868	winupd.exe
Token: SeCreateGlobalPrivilege	1868	winupd.exe
Token: 33	1868	winupd.exe
Token: 34	1868	winupd.exe
Token: 35	1868	winupd.exe
Token: 36	1868	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
1056	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
4620	winupd.exe
3240	winupd.exe
1868	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 2116 wrote to memory of 1056	2116	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	97
PID 1056 wrote to memory of 4620	1056	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	98
PID 1056 wrote to memory of 4620	1056	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	98
PID 1056 wrote to memory of 4620	1056	f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe	98
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 3240	4620	winupd.exe	104
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 4620 wrote to memory of 1868	4620	winupd.exe	105
PID 3240 wrote to memory of 928	3240	winupd.exe	106
PID 3240 wrote to memory of 928	3240	winupd.exe	106
PID 3240 wrote to memory of 928	3240	winupd.exe	106
PID 3240 wrote to memory of 928	3240	winupd.exe	106
PID 3240 wrote to memory of 928	3240	winupd.exe	106

C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
"C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe
  "C:\Users\Admin\AppData\Local\Temp\f4ea9fff1bf1a064e7101035b0dd4e6a3c6b7b1ce2c88e569fb653a34f63d967N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1056
- - 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:4620
  - - 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:3240
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:928
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 272
        6⤵
        Program crash
        
        PID:3928
  - - 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:1868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 928 -ip 928
1⤵
PID:4688

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
e48e08d9bb50d43b507ad448efb32ec2

SHA1
ea289248397909a4efae41ca378fbfcf71181cab

SHA256
cc5be2eb17676be52f55507332d1a238b115ecc86aef678c8aa06cfa116ec8b8

SHA512
fd5042c0e2a7a86590c8b78f2b568b50c6b445f3c47dd45a00ea0e269a755a4812864679ed58f3b83bf860b3367c0ed40dbd7525d5a96ec9b2ba0eff97b6fd88

Download Submit
memory/1056-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1056-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1868-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-36-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1868-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2116-11-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2116-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2116-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2116-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2116-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4620-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4620-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4620-25-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download