darkcomet | 91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37e

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
04-12-2024 01:50

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General

Target

91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
Size

520KB
MD5

f5b01a29c59db1cc37d775818d620e00
SHA1

5599e81d4c8205e48e8edf26fda9cbe0679e842e
SHA256

91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37e
SHA512

7d9033145e8edaf751ae8201f34ee92bd51f466e6fb74de74001cd85295906809256ad48b730ef3f125863a5a676fcd1bd6e3b08a27a57eda0048782afe6b065
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbt:f9fC3hh29Ya77A90aFtDfT5IMbt

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
2424	winupd.exe
4668	winupd.exe
4028	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1340 set thread context of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 2424 set thread context of 4668	2424	winupd.exe	93
PID 2424 set thread context of 4028	2424	winupd.exe	94

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4028-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4028-51-0x0000000000400000-0x00000000004B7000-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
3196	3032	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	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	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.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
3032	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4028	winupd.exe
Token: SeSecurityPrivilege	4028	winupd.exe
Token: SeTakeOwnershipPrivilege	4028	winupd.exe
Token: SeLoadDriverPrivilege	4028	winupd.exe
Token: SeSystemProfilePrivilege	4028	winupd.exe
Token: SeSystemtimePrivilege	4028	winupd.exe
Token: SeProfSingleProcessPrivilege	4028	winupd.exe
Token: SeIncBasePriorityPrivilege	4028	winupd.exe
Token: SeCreatePagefilePrivilege	4028	winupd.exe
Token: SeBackupPrivilege	4028	winupd.exe
Token: SeRestorePrivilege	4028	winupd.exe
Token: SeShutdownPrivilege	4028	winupd.exe
Token: SeDebugPrivilege	4028	winupd.exe
Token: SeSystemEnvironmentPrivilege	4028	winupd.exe
Token: SeChangeNotifyPrivilege	4028	winupd.exe
Token: SeRemoteShutdownPrivilege	4028	winupd.exe
Token: SeUndockPrivilege	4028	winupd.exe
Token: SeManageVolumePrivilege	4028	winupd.exe
Token: SeImpersonatePrivilege	4028	winupd.exe
Token: SeCreateGlobalPrivilege	4028	winupd.exe
Token: 33	4028	winupd.exe
Token: 34	4028	winupd.exe
Token: 35	4028	winupd.exe
Token: 36	4028	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
4664	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
2424	winupd.exe
4668	winupd.exe
4028	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 1340 wrote to memory of 4664	1340	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	89
PID 4664 wrote to memory of 2424	4664	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	90
PID 4664 wrote to memory of 2424	4664	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	90
PID 4664 wrote to memory of 2424	4664	91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe	90
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4668	2424	winupd.exe	93
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 2424 wrote to memory of 4028	2424	winupd.exe	94
PID 4668 wrote to memory of 3032	4668	winupd.exe	95
PID 4668 wrote to memory of 3032	4668	winupd.exe	95
PID 4668 wrote to memory of 3032	4668	winupd.exe	95
PID 4668 wrote to memory of 3032	4668	winupd.exe	95
PID 4668 wrote to memory of 3032	4668	winupd.exe	95

C:\Users\Admin\AppData\Local\Temp\91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
"C:\Users\Admin\AppData\Local\Temp\91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Users\Admin\AppData\Local\Temp\91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe
  "C:\Users\Admin\AppData\Local\Temp\91e88bb385b5c2f85958df87943a1962b5b325f6f9083b5aaf42980e1980c37eN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4664
- - 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:2424
  - - 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:4668
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:3032
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 272
        6⤵
        Program crash
        
        PID:3196
  - - 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:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3032 -ip 3032
1⤵
PID:536

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
07567a659e414a5637eea719810b520c

SHA1
80012cc0f1a831cdcee74103577da3f665bf9198

SHA256
d69e7cb89f6af917cccd0a91729c0d06d37bcc51b6f876ff2b0648bbd204b2e1

SHA512
a2cc1d8095a4b9cd7615b62d2c695d8a409d91b0455cdf2f6e8c9eb325fbbd2df6b77752dd641122f4fa96cc090426db62f6b5374fc75203765077740cb7b2f5

Download Submit
memory/1340-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1340-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1340-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1340-11-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2424-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2424-33-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2424-24-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4028-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4028-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4664-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4664-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4664-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4664-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/4668-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download