darkcomet | b950c043a68838be5063023a56acbec649f7aa899ce9e0388ee76e5f46e83dc2

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 15:55

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General

Target

be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe
Size

507KB
MD5

be1f6ed7e476a99aeac91c347d129094
SHA1

c94b901b7118c2ba2d47b8aaef666b31bb53e623
SHA256

b950c043a68838be5063023a56acbec649f7aa899ce9e0388ee76e5f46e83dc2
SHA512

d6be0ca5460f679203c7d1055862775d3420abe1b77fdcb3a42f910d55bbf06898cd0ce6f2bf00dbd47225b64fd726e1fafd23cf3a908812de757e86feca70e1
SSDEEP

12288:7Ir1jBmKwK1f5sGAK3BFLrhKCB6uIxsj94/9pw0n1caffHf:7a1jBmKBOGpFLLV3a/Isb/

Score

10^/10

darkcomet shpackz discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Shpackz

shpackz.zapto.org:5555

Mutex

DC_MUTEX-PABR8UY

Attributes

InstallPath
Windowslogans.exe
gencode
nEpsNDwg4Aet
install
true
offline_keylogger
true
persistence
false
reg_key
Windowslogans.exe

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:\\Windows\\system32\\Windowslogans.exe"	Runes by Reznov.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	Windowslogans.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	Windowslogans.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	Windowslogans.exe

Executes dropped EXE 2 IoCs

pid	Process
2452	Runes by Reznov.exe
2620	Windowslogans.exe

Loads dropped DLL 4 IoCs

pid	Process
1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe
1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe
2452	Runes by Reznov.exe
2452	Runes by Reznov.exe

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windowslogans.exe = "C:\\Windows\\system32\\Windowslogans.exe"	Runes by Reznov.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windowslogans.exe	Runes by Reznov.exe
File opened for modification	C:\Windows\SysWOW64\Windowslogans.exe	Runes by Reznov.exe
File opened for modification	C:\Windows\SysWOW64\	Runes by Reznov.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 3 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	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runes by Reznov.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windowslogans.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2452	Runes by Reznov.exe
Token: SeSecurityPrivilege	2452	Runes by Reznov.exe
Token: SeTakeOwnershipPrivilege	2452	Runes by Reznov.exe
Token: SeLoadDriverPrivilege	2452	Runes by Reznov.exe
Token: SeSystemProfilePrivilege	2452	Runes by Reznov.exe
Token: SeSystemtimePrivilege	2452	Runes by Reznov.exe
Token: SeProfSingleProcessPrivilege	2452	Runes by Reznov.exe
Token: SeIncBasePriorityPrivilege	2452	Runes by Reznov.exe
Token: SeCreatePagefilePrivilege	2452	Runes by Reznov.exe
Token: SeBackupPrivilege	2452	Runes by Reznov.exe
Token: SeRestorePrivilege	2452	Runes by Reznov.exe
Token: SeShutdownPrivilege	2452	Runes by Reznov.exe
Token: SeDebugPrivilege	2452	Runes by Reznov.exe
Token: SeSystemEnvironmentPrivilege	2452	Runes by Reznov.exe
Token: SeChangeNotifyPrivilege	2452	Runes by Reznov.exe
Token: SeRemoteShutdownPrivilege	2452	Runes by Reznov.exe
Token: SeUndockPrivilege	2452	Runes by Reznov.exe
Token: SeManageVolumePrivilege	2452	Runes by Reznov.exe
Token: SeImpersonatePrivilege	2452	Runes by Reznov.exe
Token: SeCreateGlobalPrivilege	2452	Runes by Reznov.exe
Token: 33	2452	Runes by Reznov.exe
Token: 34	2452	Runes by Reznov.exe
Token: 35	2452	Runes by Reznov.exe
Token: SeIncreaseQuotaPrivilege	2620	Windowslogans.exe
Token: SeSecurityPrivilege	2620	Windowslogans.exe
Token: SeTakeOwnershipPrivilege	2620	Windowslogans.exe
Token: SeLoadDriverPrivilege	2620	Windowslogans.exe
Token: SeSystemProfilePrivilege	2620	Windowslogans.exe
Token: SeSystemtimePrivilege	2620	Windowslogans.exe
Token: SeProfSingleProcessPrivilege	2620	Windowslogans.exe
Token: SeIncBasePriorityPrivilege	2620	Windowslogans.exe
Token: SeCreatePagefilePrivilege	2620	Windowslogans.exe
Token: SeBackupPrivilege	2620	Windowslogans.exe
Token: SeRestorePrivilege	2620	Windowslogans.exe
Token: SeShutdownPrivilege	2620	Windowslogans.exe
Token: SeDebugPrivilege	2620	Windowslogans.exe
Token: SeSystemEnvironmentPrivilege	2620	Windowslogans.exe
Token: SeChangeNotifyPrivilege	2620	Windowslogans.exe
Token: SeRemoteShutdownPrivilege	2620	Windowslogans.exe
Token: SeUndockPrivilege	2620	Windowslogans.exe
Token: SeManageVolumePrivilege	2620	Windowslogans.exe
Token: SeImpersonatePrivilege	2620	Windowslogans.exe
Token: SeCreateGlobalPrivilege	2620	Windowslogans.exe
Token: 33	2620	Windowslogans.exe
Token: 34	2620	Windowslogans.exe
Token: 35	2620	Windowslogans.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2620	Windowslogans.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 2452	1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe	30
PID 1016 wrote to memory of 2452	1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe	30
PID 1016 wrote to memory of 2452	1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe	30
PID 1016 wrote to memory of 2452	1016	be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe	30
PID 2452 wrote to memory of 2620	2452	Runes by Reznov.exe	32
PID 2452 wrote to memory of 2620	2452	Runes by Reznov.exe	32
PID 2452 wrote to memory of 2620	2452	Runes by Reznov.exe	32
PID 2452 wrote to memory of 2620	2452	Runes by Reznov.exe	32

C:\Users\Admin\AppData\Local\Temp\be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\be1f6ed7e476a99aeac91c347d129094_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1016
- C:\Users\Admin\AppData\Local\Temp\Runes by Reznov.exe
  "C:\Users\Admin\AppData\Local\Temp\Runes by Reznov.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2452
- - C:\Windows\SysWOW64\Windowslogans.exe
    "C:\Windows\system32\Windowslogans.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2620

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

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\Runes by Reznov.exe

Filesize
690KB

MD5
e671c87093efcadef9eef500929c83f7

SHA1
7c046673c80e8e1e60a7ced274d84290c0c7c32f

SHA256
66ab1dbeeff9607465fd3e973862c81f035d39edbc78ca3c29cb9f18b9ad4dd2

SHA512
5f8072869ecca08324dd482c9aaf78d771f78b9aa795efdc27403eb397f19a29f56d9843194c4ccdbeb4dfaee5f7e88d51a77c252fdc52a048f53fa34f7eaa82

Download Submit
memory/2452-10-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2452-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2620-23-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2620-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2620-27-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2620-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads