darkcomet | b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893

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
29-10-2024 09:22

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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
1044	winupd.exe
3948	winupd.exe
2776	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exe

description	pid	Process	procid_target
PID 1080 set thread context of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1044 set thread context of 3948	1044	winupd.exe	102
PID 1044 set thread context of 2776	1044	winupd.exe	103

UPX packed file 16 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2776-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-30-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2776-52-0x0000000000400000-0x00000000004B7000-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
4124	232	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.exewinupd.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.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	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

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
232	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

winupd.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2776	winupd.exe
Token: SeSecurityPrivilege	2776	winupd.exe
Token: SeTakeOwnershipPrivilege	2776	winupd.exe
Token: SeLoadDriverPrivilege	2776	winupd.exe
Token: SeSystemProfilePrivilege	2776	winupd.exe
Token: SeSystemtimePrivilege	2776	winupd.exe
Token: SeProfSingleProcessPrivilege	2776	winupd.exe
Token: SeIncBasePriorityPrivilege	2776	winupd.exe
Token: SeCreatePagefilePrivilege	2776	winupd.exe
Token: SeBackupPrivilege	2776	winupd.exe
Token: SeRestorePrivilege	2776	winupd.exe
Token: SeShutdownPrivilege	2776	winupd.exe
Token: SeDebugPrivilege	2776	winupd.exe
Token: SeSystemEnvironmentPrivilege	2776	winupd.exe
Token: SeChangeNotifyPrivilege	2776	winupd.exe
Token: SeRemoteShutdownPrivilege	2776	winupd.exe
Token: SeUndockPrivilege	2776	winupd.exe
Token: SeManageVolumePrivilege	2776	winupd.exe
Token: SeImpersonatePrivilege	2776	winupd.exe
Token: SeCreateGlobalPrivilege	2776	winupd.exe
Token: 33	2776	winupd.exe
Token: 34	2776	winupd.exe
Token: 35	2776	winupd.exe
Token: 36	2776	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exewinupd.exe

pid	Process
1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
3328	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
1044	winupd.exe
3948	winupd.exe
2776	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exe

description	pid	Process	procid_target
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 1080 wrote to memory of 3328	1080	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	96
PID 3328 wrote to memory of 1044	3328	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 3328 wrote to memory of 1044	3328	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 3328 wrote to memory of 1044	3328	b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe	97
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 3948	1044	winupd.exe	102
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 1044 wrote to memory of 2776	1044	winupd.exe	103
PID 3948 wrote to memory of 232	3948	winupd.exe	104
PID 3948 wrote to memory of 232	3948	winupd.exe	104
PID 3948 wrote to memory of 232	3948	winupd.exe	104
PID 3948 wrote to memory of 232	3948	winupd.exe	104
PID 3948 wrote to memory of 232	3948	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:1080
- 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:3328
- - 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:1044
  - - 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:3948
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:232
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 232 -s 272
        6⤵
        Program crash
        
        PID:4124
  - - 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:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 232 -ip 232
1⤵
PID:4724

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
df5e42a271031acb9ca1b49cb4c1eb4c

SHA1
1fbe253444c2d8629d2588d73da05c01bd7a5997

SHA256
28d9e7f3de6b856aeff55ccaef9a327e23bdef7c8f05dc7355ec71fa0faca88c

SHA512
330dc0c9a4d437e3b715e52103a016f01580ee6887e8890d53908a96781f6f7bca6b32547ca1b2684dcf1d2c2da90200c50da3d956f0a82ab4eeddbd1afaf0a7

Download Submit
memory/1044-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1044-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1044-27-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1080-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1080-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1080-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1080-9-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1080-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2776-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2776-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3328-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3328-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3328-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3328-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3948-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3948-36-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download