darkcomet | b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 08:11

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General

Target

b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
Size

520KB
MD5

3ff9c73f165440d7017a076dd9498f00
SHA1

b0ac814458edecb71785e05a20eac1df1b23ad26
SHA256

b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007
SHA512

6f32bd847f46db1dee28b11841d8de7743e4dfe858bc0844da9285d0acdd10ecf8c54d8c73f66c4c309e3ab8206b9885f4b68b334d2f6c4eca225f26a2ec4bf9
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbm:f9fC3hh29Ya77A90aFtDfT5IMbm

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
1336	winupd.exe
908	winupd.exe
1760	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 320 set thread context of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 1336 set thread context of 908	1336	winupd.exe	98
PID 1336 set thread context of 1760	1336	winupd.exe	99

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1760-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-36-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1760-53-0x0000000000400000-0x00000000004B7000-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	procid_target
4520	1968	WerFault.exe	100

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	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.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
1968	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1760	winupd.exe
Token: SeSecurityPrivilege	1760	winupd.exe
Token: SeTakeOwnershipPrivilege	1760	winupd.exe
Token: SeLoadDriverPrivilege	1760	winupd.exe
Token: SeSystemProfilePrivilege	1760	winupd.exe
Token: SeSystemtimePrivilege	1760	winupd.exe
Token: SeProfSingleProcessPrivilege	1760	winupd.exe
Token: SeIncBasePriorityPrivilege	1760	winupd.exe
Token: SeCreatePagefilePrivilege	1760	winupd.exe
Token: SeBackupPrivilege	1760	winupd.exe
Token: SeRestorePrivilege	1760	winupd.exe
Token: SeShutdownPrivilege	1760	winupd.exe
Token: SeDebugPrivilege	1760	winupd.exe
Token: SeSystemEnvironmentPrivilege	1760	winupd.exe
Token: SeChangeNotifyPrivilege	1760	winupd.exe
Token: SeRemoteShutdownPrivilege	1760	winupd.exe
Token: SeUndockPrivilege	1760	winupd.exe
Token: SeManageVolumePrivilege	1760	winupd.exe
Token: SeImpersonatePrivilege	1760	winupd.exe
Token: SeCreateGlobalPrivilege	1760	winupd.exe
Token: 33	1760	winupd.exe
Token: 34	1760	winupd.exe
Token: 35	1760	winupd.exe
Token: 36	1760	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
2868	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
1336	winupd.exe
908	winupd.exe
1760	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 320 wrote to memory of 2868	320	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	93
PID 2868 wrote to memory of 1336	2868	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	94
PID 2868 wrote to memory of 1336	2868	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	94
PID 2868 wrote to memory of 1336	2868	b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe	94
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 908	1336	winupd.exe	98
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 1336 wrote to memory of 1760	1336	winupd.exe	99
PID 908 wrote to memory of 1968	908	winupd.exe	100
PID 908 wrote to memory of 1968	908	winupd.exe	100
PID 908 wrote to memory of 1968	908	winupd.exe	100
PID 908 wrote to memory of 1968	908	winupd.exe	100
PID 908 wrote to memory of 1968	908	winupd.exe	100

C:\Users\Admin\AppData\Local\Temp\b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
"C:\Users\Admin\AppData\Local\Temp\b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:320
- C:\Users\Admin\AppData\Local\Temp\b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe
  "C:\Users\Admin\AppData\Local\Temp\b3fdd38a2a2283e52257a15180117f5fb6160992069cf14d72da61215ee5c007N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2868
- - 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:1336
  - - 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:908
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:1968
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 272
        6⤵
        Program crash
        
        PID:4520
  - - 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:1760

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1968 -ip 1968
1⤵
PID:1808

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
54378875e753fdc6dd1ba9d628469450

SHA1
45c64dfbba75f51622234b0d2f1363948c8cf125

SHA256
33ff0bb42ae47a006e27f4e1fbb6c613ee7283c2120360a9380ad4c25b430cd1

SHA512
9a94dc0cbd206595e37db879061ebc97168e541a595e99bb4080ccd9c035dc2cb4b554046bbd855ee87229347d4b25658cacae9190fc6625e5a3f10b5a072bf4

Download Submit
memory/320-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/320-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/320-11-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/320-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/320-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1336-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1336-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1336-28-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1760-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-36-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1760-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2868-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2868-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2868-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2868-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download