darkcomet | 96a973f6ec1b985ad4224870800fbbe369e5838dbc994c16d7ce8f8c3b30e8a1

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 19:25

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General

Target

cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
Size

926KB
MD5

cea0ff40beb91736ba2442b69237667b
SHA1

a43ca7c487363b53158573b25cc29888763cc626
SHA256

96a973f6ec1b985ad4224870800fbbe369e5838dbc994c16d7ce8f8c3b30e8a1
SHA512

3a1298c556a36a27e8e48540abea44728ce2b06d7f41a0c8478161078d6a0773728013acce007a23ca433bbbef0e1160f857e1618a4b16fda9c8b5199d936397
SSDEEP

24576:0vVGhnqrpqUruyeG0ZN3DIeriQv0XwQjGp:PJ48UKfGw1DniQveg

Score

10^/10

darkcomet m@trix discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

M@trix

matrixgx.no-ip.biz:1604

Mutex

DC_MUTEX-LCLDLR3

Attributes

InstallPath
RealPlayer\%TEMP%.exe
gencode
kzX7VMDXdUly
install
true
offline_keylogger
true
persistence
true
reg_key
RealUpd

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
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:\\Users\\Admin\\AppData\\Roaming\\RealPlayer\\%TEMP%.exe"	1.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

Checks computer location settings 2 TTPs 2 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	1.exe

Executes dropped EXE 3 IoCs

pid	Process
3520	1.exe
4780	2.exe
4668	%TEMP%.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RealUpd = "C:\\Users\\Admin\\AppData\\Roaming\\RealPlayer\\%TEMP%.exe"	1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RealUpd = "C:\\Users\\Admin\\AppData\\Roaming\\RealPlayer\\%TEMP%.exe"	%TEMP%.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000023c9e-21.dat	upx
behavioral2/memory/4780-26-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-92-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-93-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-95-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-97-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-99-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-101-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-103-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-105-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-107-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-109-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-111-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-113-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-115-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-117-0x0000000000400000-0x000000000079B000-memory.dmp	upx
behavioral2/memory/4780-119-0x0000000000400000-0x000000000079B000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	%TEMP%.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	1.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4780	2.exe
4668	%TEMP%.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3520	1.exe
Token: SeSecurityPrivilege	3520	1.exe
Token: SeTakeOwnershipPrivilege	3520	1.exe
Token: SeLoadDriverPrivilege	3520	1.exe
Token: SeSystemProfilePrivilege	3520	1.exe
Token: SeSystemtimePrivilege	3520	1.exe
Token: SeProfSingleProcessPrivilege	3520	1.exe
Token: SeIncBasePriorityPrivilege	3520	1.exe
Token: SeCreatePagefilePrivilege	3520	1.exe
Token: SeBackupPrivilege	3520	1.exe
Token: SeRestorePrivilege	3520	1.exe
Token: SeShutdownPrivilege	3520	1.exe
Token: SeDebugPrivilege	3520	1.exe
Token: SeSystemEnvironmentPrivilege	3520	1.exe
Token: SeChangeNotifyPrivilege	3520	1.exe
Token: SeRemoteShutdownPrivilege	3520	1.exe
Token: SeUndockPrivilege	3520	1.exe
Token: SeManageVolumePrivilege	3520	1.exe
Token: SeImpersonatePrivilege	3520	1.exe
Token: SeCreateGlobalPrivilege	3520	1.exe
Token: 33	3520	1.exe
Token: 34	3520	1.exe
Token: 35	3520	1.exe
Token: 36	3520	1.exe
Token: 33	5024	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	5024	AUDIODG.EXE
Token: SeIncreaseQuotaPrivilege	4668	%TEMP%.exe
Token: SeSecurityPrivilege	4668	%TEMP%.exe
Token: SeTakeOwnershipPrivilege	4668	%TEMP%.exe
Token: SeLoadDriverPrivilege	4668	%TEMP%.exe
Token: SeSystemProfilePrivilege	4668	%TEMP%.exe
Token: SeSystemtimePrivilege	4668	%TEMP%.exe
Token: SeProfSingleProcessPrivilege	4668	%TEMP%.exe
Token: SeIncBasePriorityPrivilege	4668	%TEMP%.exe
Token: SeCreatePagefilePrivilege	4668	%TEMP%.exe
Token: SeBackupPrivilege	4668	%TEMP%.exe
Token: SeRestorePrivilege	4668	%TEMP%.exe
Token: SeShutdownPrivilege	4668	%TEMP%.exe
Token: SeDebugPrivilege	4668	%TEMP%.exe
Token: SeSystemEnvironmentPrivilege	4668	%TEMP%.exe
Token: SeChangeNotifyPrivilege	4668	%TEMP%.exe
Token: SeRemoteShutdownPrivilege	4668	%TEMP%.exe
Token: SeUndockPrivilege	4668	%TEMP%.exe
Token: SeManageVolumePrivilege	4668	%TEMP%.exe
Token: SeImpersonatePrivilege	4668	%TEMP%.exe
Token: SeCreateGlobalPrivilege	4668	%TEMP%.exe
Token: 33	4668	%TEMP%.exe
Token: 34	4668	%TEMP%.exe
Token: 35	4668	%TEMP%.exe
Token: 36	4668	%TEMP%.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4668	%TEMP%.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 3520	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	83
PID 2804 wrote to memory of 3520	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	83
PID 2804 wrote to memory of 3520	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	83
PID 2804 wrote to memory of 4780	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	84
PID 2804 wrote to memory of 4780	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	84
PID 2804 wrote to memory of 4780	2804	cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe	84
PID 3520 wrote to memory of 4668	3520	1.exe	86
PID 3520 wrote to memory of 4668	3520	1.exe	86
PID 3520 wrote to memory of 4668	3520	1.exe	86
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87
PID 4668 wrote to memory of 3588	4668	%TEMP%.exe	87

C:\Users\Admin\AppData\Local\Temp\cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cea0ff40beb91736ba2442b69237667b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Users\Admin\AppData\Roaming\RealPlayer\%TEMP%.exe
    "C:\Users\Admin\AppData\Roaming\RealPlayer\%TEMP%.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4668
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3588
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:4780

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x244 0x240
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5024

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\Local\Temp\1.exe

Filesize
690KB

MD5
45eb357bd7e13451a15e96c151f85d71

SHA1
1c69258927c4e2dcc7b154fdf64468e2d62dde4e

SHA256
c97da2ada1e7f2a498995d806542181bd0e42283f01a158e4abb917733cf151d

SHA512
c439d6e9efdb74bb1405849a1356399a7a538b2dacec9a5f09953ff9ef12b257e325127ecbc0898734f1907648a6209a5151ba740a71bfd7f5fa3f8fa56291f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\2.exe

Filesize
222KB

MD5
5bf28e61b1c3ec7f3ede92262a8e7231

SHA1
2c15790344fddfea7d76a31776b4c3be036c5bc9

SHA256
9c0208af1eeb9f75c5fd3971a816ca30947c935fa4a29fec97a4574312b4522e

SHA512
e52acc2dafc665753693d61f5cdc0548bcf6f27e6412751bd5f7dc1cfdd3cd79f3a2496242e955aa4d9e5a1be8855885d3b8949c0e6e1fd0367cad6794e1aaab

Download Submit
memory/2804-1-0x00007FFEAF0C0000-0x00007FFEAFA61000-memory.dmp

Filesize
9.6MB

Download
memory/2804-2-0x00007FFEAF0C0000-0x00007FFEAFA61000-memory.dmp

Filesize
9.6MB

Download
memory/2804-3-0x000000001B210000-0x000000001B2FC000-memory.dmp

Filesize
944KB

Download
memory/2804-0-0x00007FFEAF375000-0x00007FFEAF376000-memory.dmp

Filesize
4KB

Download
memory/2804-27-0x00007FFEAF0C0000-0x00007FFEAFA61000-memory.dmp

Filesize
9.6MB

Download
memory/3520-91-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3520-28-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/3588-90-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/4668-116-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-98-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-106-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-94-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-114-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-96-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-112-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-118-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-110-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-100-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-120-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-102-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-108-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4668-104-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4780-101-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-105-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-107-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-103-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-109-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-99-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-111-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-97-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-113-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-95-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-115-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-93-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-117-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-92-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-119-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download
memory/4780-26-0x0000000000400000-0x000000000079B000-memory.dmp

Filesize
3.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads