darkcomet | 1b75e1edeb875c5218baebebc304a5acab2de18c8970506d4fb0dfcae2ef13c4

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
06-05-2024 07:29

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General

Target

1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe
Size

6.7MB
MD5

1b6b13653278e38989a3ab4025a69a97
SHA1

4d9573df4054a6cfc2d2d3ea91876368a95e405a
SHA256

1b75e1edeb875c5218baebebc304a5acab2de18c8970506d4fb0dfcae2ef13c4
SHA512

7b9e554a6414f1751addce0b158bfbc107f772c13e6dd52d16989f0f33c0afabe11a4d854afe2614166401cdffdf77564b79db894f2f61556cb91dc5525f325b
SSDEEP

196608:nwk9Yh8IRzdq9DK+C/J4X3hDzFLcje2x1Rzf+Qkc5OsHuyDjKa:nw79q9DdCJ41Geu1Rzf+lA7uyDjKa

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

andreprivet.ddns.net:1604

Mutex

DC_MUTEX-RWR5U28

Attributes

InstallPath
zh-PH\WWAHost.exe
gencode
WolGzuCR4Xlr
install
true
offline_keylogger
true
persistence
false
reg_key
WAHost

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\zh-PH\\WWAHost.exe"	po.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	WWAHost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	WWAHost.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	WWAHost.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2812	attrib.exe
1312	attrib.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	11.exe
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	po.exe

Executes dropped EXE 3 IoCs

pid	Process
1916	11.exe
2652	po.exe
2132	WWAHost.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023b9f-18.dat	upx
behavioral2/memory/2652-25-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2132-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2652-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2132-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2132-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2132-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2132-110-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WAHost = "C:\\Windows\\system32\\zh-PH\\WWAHost.exe"	po.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zh-PH\WWAHost.exe	po.exe
File opened for modification	C:\Windows\SysWOW64\zh-PH\WWAHost.exe	po.exe
File opened for modification	C:\Windows\SysWOW64\zh-PH\	po.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000_Classes\Local Settings	11.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5104	vlc.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
5104	vlc.exe
2132	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 52 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2652	po.exe
Token: SeSecurityPrivilege	2652	po.exe
Token: SeTakeOwnershipPrivilege	2652	po.exe
Token: SeLoadDriverPrivilege	2652	po.exe
Token: SeSystemProfilePrivilege	2652	po.exe
Token: SeSystemtimePrivilege	2652	po.exe
Token: SeProfSingleProcessPrivilege	2652	po.exe
Token: SeIncBasePriorityPrivilege	2652	po.exe
Token: SeCreatePagefilePrivilege	2652	po.exe
Token: SeBackupPrivilege	2652	po.exe
Token: SeRestorePrivilege	2652	po.exe
Token: SeShutdownPrivilege	2652	po.exe
Token: SeDebugPrivilege	2652	po.exe
Token: SeSystemEnvironmentPrivilege	2652	po.exe
Token: SeChangeNotifyPrivilege	2652	po.exe
Token: SeRemoteShutdownPrivilege	2652	po.exe
Token: SeUndockPrivilege	2652	po.exe
Token: SeManageVolumePrivilege	2652	po.exe
Token: SeImpersonatePrivilege	2652	po.exe
Token: SeCreateGlobalPrivilege	2652	po.exe
Token: 33	2652	po.exe
Token: 34	2652	po.exe
Token: 35	2652	po.exe
Token: 36	2652	po.exe
Token: SeIncreaseQuotaPrivilege	2132	WWAHost.exe
Token: SeSecurityPrivilege	2132	WWAHost.exe
Token: SeTakeOwnershipPrivilege	2132	WWAHost.exe
Token: SeLoadDriverPrivilege	2132	WWAHost.exe
Token: SeSystemProfilePrivilege	2132	WWAHost.exe
Token: SeSystemtimePrivilege	2132	WWAHost.exe
Token: SeProfSingleProcessPrivilege	2132	WWAHost.exe
Token: SeIncBasePriorityPrivilege	2132	WWAHost.exe
Token: SeCreatePagefilePrivilege	2132	WWAHost.exe
Token: SeBackupPrivilege	2132	WWAHost.exe
Token: SeRestorePrivilege	2132	WWAHost.exe
Token: SeShutdownPrivilege	2132	WWAHost.exe
Token: SeDebugPrivilege	2132	WWAHost.exe
Token: SeSystemEnvironmentPrivilege	2132	WWAHost.exe
Token: SeChangeNotifyPrivilege	2132	WWAHost.exe
Token: SeRemoteShutdownPrivilege	2132	WWAHost.exe
Token: SeUndockPrivilege	2132	WWAHost.exe
Token: SeManageVolumePrivilege	2132	WWAHost.exe
Token: SeImpersonatePrivilege	2132	WWAHost.exe
Token: SeCreateGlobalPrivilege	2132	WWAHost.exe
Token: 33	2132	WWAHost.exe
Token: 34	2132	WWAHost.exe
Token: 35	2132	WWAHost.exe
Token: 36	2132	WWAHost.exe
Token: 33	4984	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	4984	AUDIODG.EXE
Token: 33	5104	vlc.exe
Token: SeIncBasePriorityPrivilege	5104	vlc.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
5104	vlc.exe
5104	vlc.exe
5104	vlc.exe
5104	vlc.exe
5104	vlc.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
5104	vlc.exe
5104	vlc.exe
5104	vlc.exe
5104	vlc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2132	WWAHost.exe
5104	vlc.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 4856	4904	1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe	84
PID 4904 wrote to memory of 4856	4904	1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe	84
PID 4904 wrote to memory of 4856	4904	1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe	84
PID 4856 wrote to memory of 1916	4856	cmd.exe	87
PID 4856 wrote to memory of 1916	4856	cmd.exe	87
PID 4856 wrote to memory of 1916	4856	cmd.exe	87
PID 1916 wrote to memory of 2652	1916	11.exe	90
PID 1916 wrote to memory of 2652	1916	11.exe	90
PID 1916 wrote to memory of 2652	1916	11.exe	90
PID 2652 wrote to memory of 4168	2652	po.exe	91
PID 2652 wrote to memory of 4168	2652	po.exe	91
PID 2652 wrote to memory of 4168	2652	po.exe	91
PID 2652 wrote to memory of 2484	2652	po.exe	93
PID 2652 wrote to memory of 2484	2652	po.exe	93
PID 2652 wrote to memory of 2484	2652	po.exe	93
PID 2652 wrote to memory of 2132	2652	po.exe	95
PID 2652 wrote to memory of 2132	2652	po.exe	95
PID 2652 wrote to memory of 2132	2652	po.exe	95
PID 4168 wrote to memory of 2812	4168	cmd.exe	96
PID 4168 wrote to memory of 2812	4168	cmd.exe	96
PID 4168 wrote to memory of 2812	4168	cmd.exe	96
PID 2484 wrote to memory of 1312	2484	cmd.exe	97
PID 2484 wrote to memory of 1312	2484	cmd.exe	97
PID 2484 wrote to memory of 1312	2484	cmd.exe	97
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 2132 wrote to memory of 4920	2132	WWAHost.exe	98
PID 1916 wrote to memory of 5104	1916	11.exe	105
PID 1916 wrote to memory of 5104	1916	11.exe	105

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1312	attrib.exe
2812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1b6b13653278e38989a3ab4025a69a97_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\start.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Users\Admin\AppData\Roaming\11.exe
    11.exe -p03658512984 -dC:\Users\Admin\AppData\Roaming
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1916
  - - C:\Users\Admin\AppData\Roaming\po.exe
      "C:\Users\Admin\AppData\Roaming\po.exe"
      4⤵
      Modifies WinLogon for persistence
      Checks computer location settings
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2652
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Roaming\po.exe" +s +h
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4168
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Roaming\po.exe" +s +h
        6⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:2812
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Roaming" +s +h
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2484
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Roaming" +s +h
        6⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:1312
    - - C:\Windows\SysWOW64\zh-PH\WWAHost.exe
        
        "C:\Windows\system32\zh-PH\WWAHost.exe"
        5⤵
        Modifies firewall policy service
        Executes dropped EXE
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2132
      - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        6⤵
        
        PID:4920
  - - C:\Program Files\VideoLAN\VLC\vlc.exe
      "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Roaming\12.mp3"
      4⤵
      Suspicious behavior: AddClipboardFormatListener
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of SetWindowsHookEx
      PID:5104

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3d0 0x464
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\11.exe

Filesize
6.6MB

MD5
eea149721c01291896b69895fd414964

SHA1
cd7f559e2847a6d26679472040ecc05ab8eef548

SHA256
5c4bf3713ff356a995d6fa59b7e68105ab4385cd22f6f519fbe3bdf993add823

SHA512
e01aec03356ac64b704d42bf764e89bb286a966f5c2da65201737a5af1accab04d5be8be5f07833a96b5525c9697334bcbddde2ad6f1e6932d7d526a352ea7a7

Download Submit
C:\Users\Admin\AppData\Roaming\12.mp3

Filesize
7.1MB

MD5
994ed675fa3c1ec9be2dc88f80a54d6c

SHA1
0be3478c5cbe848ea920d87c7853aec2c3d990fa

SHA256
95012f310436a52c4e083fabdf42db4c8d3242bc42689b63e8e613f73696d924

SHA512
38e04c70da86d6a1b473188789712236c09967139581da9578c23804d56f2866b3b1fb2cf115658624c0d6e044f00ba804b8c4efbbb77926b4affdc84af6f901

Download Submit
C:\Users\Admin\AppData\Roaming\po.exe

Filesize
251KB

MD5
010b72d9045c7aede13473e1f4514ca9

SHA1
50cc0ba901b8bc1cfd34a277af34b7f666d1f693

SHA256
67bd0a65268d058dbf0ca7cd6a4b30060a4aa60bfd3d59c04768b1422d7f433a

SHA512
1c492a8927196c028c49931bbc99f6f1dd26f4d97eca35d576c953786d3101119910bb39d9a22b1a65289ad3d66c703bc69305ca616372f03443a17bfc0b3a65

Download Submit
C:\Users\Admin\AppData\Roaming\start.bat

Filesize
32B

MD5
d9b4214e353ba616f5edc2633ba76e36

SHA1
a69e0090704947fd72fbfab013699aa56896121b

SHA256
f027b25ce42d032279e22532ebae52023482a4fb278d4c3159ccab3102e0fc28

SHA512
9d89a0fa65de20b5a089e304939f0da1a34d5ee0509564c42de63e164a1216df31f5e0f0a208f2b9851c33902ef568853322f3df02a0415c78ed66be16b78121

Download Submit
memory/2132-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2132-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2132-110-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2132-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2132-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4920-40-0x0000000001180000-0x0000000001181000-memory.dmp

Filesize
4KB

Download
memory/5104-71-0x00007FF81A4E0000-0x00007FF81A4FB000-memory.dmp

Filesize
108KB

Download
memory/5104-64-0x00007FF819620000-0x00007FF81982B000-memory.dmp

Filesize
2.0MB

Download
memory/5104-62-0x00007FF81AAC0000-0x00007FF81AADD000-memory.dmp

Filesize
116KB

Download
memory/5104-70-0x00007FF81A500000-0x00007FF81A511000-memory.dmp

Filesize
68KB

Download
memory/5104-69-0x00007FF81A520000-0x00007FF81A531000-memory.dmp

Filesize
68KB

Download
memory/5104-68-0x00007FF81A540000-0x00007FF81A551000-memory.dmp

Filesize
68KB

Download
memory/5104-67-0x00007FF81AA30000-0x00007FF81AA48000-memory.dmp

Filesize
96KB

Download
memory/5104-66-0x00007FF81A560000-0x00007FF81A581000-memory.dmp

Filesize
132KB

Download
memory/5104-65-0x00007FF81AA50000-0x00007FF81AA91000-memory.dmp

Filesize
260KB

Download
memory/5104-61-0x00007FF81AAE0000-0x00007FF81AAF1000-memory.dmp

Filesize
68KB

Download
memory/5104-56-0x00007FF81AD40000-0x00007FF81AFF6000-memory.dmp

Filesize
2.7MB

Download
memory/5104-60-0x00007FF81AB00000-0x00007FF81AB17000-memory.dmp

Filesize
92KB

Download
memory/5104-59-0x00007FF828A60000-0x00007FF828A71000-memory.dmp

Filesize
68KB

Download
memory/5104-58-0x00007FF829520000-0x00007FF829537000-memory.dmp

Filesize
92KB

Download
memory/5104-57-0x00007FF829860000-0x00007FF829878000-memory.dmp

Filesize
96KB

Download
memory/5104-63-0x00007FF81AAA0000-0x00007FF81AAB1000-memory.dmp

Filesize
68KB

Download
memory/5104-55-0x00007FF829790000-0x00007FF8297C4000-memory.dmp

Filesize
208KB

Download
memory/5104-54-0x00007FF747D90000-0x00007FF747E88000-memory.dmp

Filesize
992KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads