darkvnc | 3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b

Analysis

max time kernel
130s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
28-03-2022 15:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe
Size

670KB
MD5

cebad7507c9b80980e1f6d9f829a7e41
SHA1

21a3b8876d3ed54da07825f9696bfb5597c47439
SHA256

3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b
SHA512

5406f08f884584b88df81e3968b9dc37eb3cf4bccfb3d84dffedb7a421a8166f616d9c0b9d036067a06ac5ae59f3141974ee9759a8df18ebb29e2a618bea5bab

Score

10^/10

darkvnc rat suricata

Malware Config

Signatures

DarkVNC
DarkVNC is a malicious version of the famous VNC software.
rat darkvnc
suricata: ET MALWARE VNCStartServer BOT Variant CnC Beacon
suricata: ET MALWARE VNCStartServer BOT Variant CnC Beacon
suricata
suricata: ET MALWARE VNCStartServer USR Variant CnC Beacon
suricata: ET MALWARE VNCStartServer USR Variant CnC Beacon
suricata

DarkVNC Payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3456-141-0x0000000003840000-0x0000000003980000-memory.dmp	darkvnc

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3456 set thread context of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102

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

pid	Process
3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102
PID 3456 wrote to memory of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102
PID 3456 wrote to memory of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102
PID 3456 wrote to memory of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102
PID 3456 wrote to memory of 4124	3456	3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe	102

C:\Users\Admin\AppData\Local\Temp\3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe
"C:\Users\Admin\AppData\Local\Temp\3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe
  2⤵
  PID:4124

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

Loading Replay Monitor...

Downloads

memory/3456-134-0x0000000002BE0000-0x0000000003170000-memory.dmp

Filesize
5.6MB

Download
memory/3456-135-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3456-139-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3456-140-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/3456-141-0x0000000003840000-0x0000000003980000-memory.dmp

Filesize
1.2MB

Download