darkcomet | 57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476

Analysis

max time kernel
120s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 14:57

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General

Target

57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
Size

520KB
MD5

e8bca826a31021429c0a69228bd6d3a0
SHA1

cb7511bd838dc09a300fdac51e7be78da3bb9417
SHA256

57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476
SHA512

e0a6b38c11a65d225ced509756db7efd56f7eaff01b0225e6b21ccc8928cbd594f4301f4f09ebd18144deba1b729be5ac99c8a89eabacce2fe8d2b9ea61bc4aa
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbW:f9fC3hh29Ya77A90aFtDfT5IMbW

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
3832	winupd.exe
2268	winupd.exe
1824	winupd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 3832 set thread context of 2268	3832	winupd.exe	100
PID 3832 set thread context of 1824	3832	winupd.exe	101

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1824-31-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-32-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-43-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1824-50-0x0000000000400000-0x00000000004B7000-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
400	4676	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	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.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
4676	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1824	winupd.exe
Token: SeSecurityPrivilege	1824	winupd.exe
Token: SeTakeOwnershipPrivilege	1824	winupd.exe
Token: SeLoadDriverPrivilege	1824	winupd.exe
Token: SeSystemProfilePrivilege	1824	winupd.exe
Token: SeSystemtimePrivilege	1824	winupd.exe
Token: SeProfSingleProcessPrivilege	1824	winupd.exe
Token: SeIncBasePriorityPrivilege	1824	winupd.exe
Token: SeCreatePagefilePrivilege	1824	winupd.exe
Token: SeBackupPrivilege	1824	winupd.exe
Token: SeRestorePrivilege	1824	winupd.exe
Token: SeShutdownPrivilege	1824	winupd.exe
Token: SeDebugPrivilege	1824	winupd.exe
Token: SeSystemEnvironmentPrivilege	1824	winupd.exe
Token: SeChangeNotifyPrivilege	1824	winupd.exe
Token: SeRemoteShutdownPrivilege	1824	winupd.exe
Token: SeUndockPrivilege	1824	winupd.exe
Token: SeManageVolumePrivilege	1824	winupd.exe
Token: SeImpersonatePrivilege	1824	winupd.exe
Token: SeCreateGlobalPrivilege	1824	winupd.exe
Token: 33	1824	winupd.exe
Token: 34	1824	winupd.exe
Token: 35	1824	winupd.exe
Token: 36	1824	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
2892	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
3832	winupd.exe
2268	winupd.exe
1824	winupd.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 4884 wrote to memory of 2892	4884	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	95
PID 2892 wrote to memory of 3832	2892	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	96
PID 2892 wrote to memory of 3832	2892	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	96
PID 2892 wrote to memory of 3832	2892	57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe	96
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 2268	3832	winupd.exe	100
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 3832 wrote to memory of 1824	3832	winupd.exe	101
PID 2268 wrote to memory of 4676	2268	winupd.exe	102
PID 2268 wrote to memory of 4676	2268	winupd.exe	102
PID 2268 wrote to memory of 4676	2268	winupd.exe	102
PID 2268 wrote to memory of 4676	2268	winupd.exe	102
PID 2268 wrote to memory of 4676	2268	winupd.exe	102

C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
"C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe
  "C:\Users\Admin\AppData\Local\Temp\57cd5a109c63dabf901fc0076c95138971246f80305dd20675fbee64c1b70476N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2892
- - 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:3832
  - - 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:2268
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        Gathers network information
        
        PID:4676
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4676 -s 272
        6⤵
        Program crash
        
        PID:400
  - - 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:1824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4676 -ip 4676
1⤵
PID:3720

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
e0f53fbcf77a5d3cd4a08ae1d05f50a8

SHA1
f8009b5e6eed1e851975e727783694d9c4194d38

SHA256
1bae0274bc2301237a06431c155e6ac4d44ad6b224e194640741c158ce8c03ec

SHA512
615f6bf102657fb2d930ebd0eeec8477f4e063e7334880a5c2e1de73f6101f70bededf3435d62352843ca89b09f5d86e079f58457ebac0eadb6c2c740a4093c4

Download Submit
memory/1824-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-43-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-31-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1824-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2268-41-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2892-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2892-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2892-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2892-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/3832-24-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3832-36-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3832-23-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4884-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4884-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4884-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4884-9-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4884-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download