darkvnc | 96cf692ca4ff7996e45309e3a304da0b071c6ac3b4f9065cb1629d091dc5d7fc

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20251223-en
resource tags

arch:x64arch:x86image:win11-20251223-enlocale:en-usos:windows11-21h2-x64system
submitted
18/12/2025, 23:16

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General

Target
JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
Size 3.3MB
Sample251218-288dhs1jct
SHA256 96cf692ca4ff7996e45309e3a304da0b071c6ac3b4f9065cb1629d091dc5d7fc
MD5 3b3da74d3abdc40ad9836a3b18d0d21e
SHA1 6a1ac09ee867ce60b95a90c750ac0511cdd72cc5
SHA512 3c8cb2c8099cf83d9d43ff3f9f983d5f11401e4d1197aa6dc2826493a88eca926558857ed57667f58a4a3ab61200ef61fe4ef428fd373346bd1dd774ce5c1ec0
SSDEEP 3072:BXw46M76RZ1/2aiUT/+gjS5vqBmwZF1gBrj8LS22YWZE/1r5PAQ7gYgPC1GBmTIn:hT7GY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

defense_evasion discovery darkvnc rat

Malware Config

Signatures

DarkVNC
DarkVNC is a malicious version of the famous VNC software.
rat darkvnc
Darkvnc family
darkvnc

DarkVNC payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1284-15-0x00000000030B0000-0x0000000003139000-memory.dmp	darkvnc

Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs

pid	Process
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4980 set thread context of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 5872 set thread context of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85

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	procid_target
3192	1284	WerFault.exe	85

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	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4580	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 4980 wrote to memory of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 4980 wrote to memory of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 4980 wrote to memory of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 4980 wrote to memory of 5872	4980	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	78
PID 5872 wrote to memory of 5780	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	79
PID 5780 wrote to memory of 4580	5780	cmd.exe	81
PID 5872 wrote to memory of 6080	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	82
PID 5872 wrote to memory of 2388	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	83
PID 5872 wrote to memory of 3960	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	84
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 5872 wrote to memory of 1284	5872	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	85
PID 1284 wrote to memory of 3048	1284	JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5872
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5780
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 1
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:4580
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
    3⤵
    PID:6080
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
    3⤵
    PID:2388
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
    3⤵
    PID:3960
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1284
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe
      4⤵
      PID:3048
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 904
      4⤵
      Program crash
      PID:3192

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1284 -ip 1284
1⤵
PID:1964

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_3b3da74d3abdc40ad9836a3b18d0d21e.exe.log
Size 1KB
SHA256 ea34ed961b9381442e2808e35cddf02a46643d22bbac8ce93a739b19b256c7de
MD5 1d011c40ea407a4605cfff1efbf80c11
SHA1 1e5d277e4e4d2f4ffbebdb989d41c192fbfc3ece
SHA512 640bc5092705b73c31e91ce563052c91599c25c9459a515313c3bf5414705718a28c9a028421f4baa9cd9b72eb8d315afa54afe63a2b04e0f400d85a0dffc5ac
MD5 SHA1 SHA512

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memory/1284-11-0x0000000000400000-0x000000000046A000-memory.dmp

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memory/1284-9-0x0000000000400000-0x000000000046A000-memory.dmp

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memory/1284-12-0x0000000000400000-0x000000000046A000-memory.dmp

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memory/1284-13-0x0000000000400000-0x000000000046A000-memory.dmp

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memory/1284-15-0x00000000030B0000-0x0000000003139000-memory.dmp

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memory/1284-17-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/4980-2-0x0000000002EC0000-0x0000000002ED0000-memory.dmp

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memory/4980-3-0x0000000005A10000-0x0000000005FB6000-memory.dmp

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memory/4980-4-0x0000000002E50000-0x0000000002E51000-memory.dmp

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memory/4980-1-0x00000000053C0000-0x000000000545C000-memory.dmp

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memory/4980-0-0x0000000000740000-0x0000000000A90000-memory.dmp

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memory/5872-5-0x0000000010000000-0x000000001007C000-memory.dmp

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memory/5872-8-0x0000000002E10000-0x0000000002E20000-memory.dmp

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