Analysis
- max time kernel
130s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
28/03/2022, 15:34
Static task
static1
Behavioral task
behavioral1
Sample
3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe
Resource
win7-20220310-en
0 signatures
0 seconds
General
- Target 3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b.exe
- Size 670KB
- Sample220328-sz3bgafgap
- SHA256 3a9397af4dfc720df6b8d7c2949bcac307fd5c2540ca114904f43c162e0f4a4b
- MD5 cebad7507c9b80980e1f6d9f829a7e41
- SHA1 21a3b8876d3ed54da07825f9696bfb5597c47439
- SHA512 5406f08f884584b88df81e3968b9dc37eb3cf4bccfb3d84dffedb7a421a8166f616d9c0b9d036067a06ac5ae59f3141974ee9759a8df18ebb29e2a618bea5bab
- MD5 SHA1 SHA512
Malware Config
Signatures
- suricata: ET MALWARE VNCStartServer BOT Variant CnC Beacon
suricata: ET MALWARE VNCStartServer BOT Variant CnC Beacon
- suricata: ET MALWARE VNCStartServer USR Variant CnC Beacon
suricata: ET MALWARE VNCStartServer USR Variant CnC Beacon
- DarkVNC Payload 1 IoCs
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.
- 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
Processes
-
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.exeC:\Windows\system32\WerFault.exe2⤵PID:4124
-