darkvnc | 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0

Analysis

max time kernel
234s
max time network
337s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
30-11-2022 16:48

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General

Target

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe
Size

3.9MB
MD5

0cd38e18027da4fa19ef7e53155b6995
SHA1

d620be0f573e9236f4e20cd8d442af39943059e0
SHA256

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0
SHA512

104c660eca8027b508998d66f925eab992a7e8384eee363b765c36de50beedb12fe2f20ef9784dcb2bcabb98da7163bddbe7f420326447569bedaabfbd5924a6
SSDEEP

98304:i0NB93Q53yuQaxlCiHqORcwxDAoHa126mUsj:i0g3wWzHDc8DAoHSmUs

Score

10^/10

darkvnc rat

Malware Config

Signatures

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

DarkVNC payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/268-60-0x0000000010000000-0x0000000010089000-memory.dmp	darkvnc
behavioral1/memory/432-66-0x0000000001C40000-0x0000000001D09000-memory.dmp	darkvnc

Suspicious use of SetThreadContext 1 IoCs

Processes:

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

description	pid	process	target process
PID 268 set thread context of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe

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

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

pid process

268 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

pid process

268 42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

pid	process
268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

pid	process
268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe

description	pid	process	target process
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe
PID 268 wrote to memory of 432	268	42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe
"C:\Users\Admin\AppData\Local\Temp\42b793620ccc9b361fb627bbc381201a16e55b275446cdd466abedb8c99998b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:268
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe
  2⤵
  PID:432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/268-54-0x0000000075491000-0x0000000075493000-memory.dmp

Filesize
8KB

Download
memory/268-55-0x0000000000390000-0x00000000003C2000-memory.dmp

Filesize
200KB

Download
memory/268-56-0x0000000000400000-0x00000000007F7000-memory.dmp

Filesize
4.0MB

Download
memory/268-60-0x0000000010000000-0x0000000010089000-memory.dmp

Filesize
548KB

Download
memory/268-64-0x0000000000400000-0x00000000007F7000-memory.dmp

Filesize
4.0MB

Download
memory/268-65-0x0000000000400000-0x00000000007F7000-memory.dmp

Filesize
4.0MB

Download
memory/268-67-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/432-63-0x0000000000000000-mapping.dmp

Download
memory/432-66-0x0000000001C40000-0x0000000001D09000-memory.dmp

Filesize
804KB

Download