systembc

General

Target

fc80f7f615d4130160c30ec1c8e4cd885a7f42978ead2509cfdd350ad3547882.dll
Size

646KB
Sample

220202-w4s55sbagl
MD5

a04d8167d9f4313b9f1e6ba38900306c
SHA1

3f0c0c5555707a52247b91452c75692c1f30c8b6
SHA256

fc80f7f615d4130160c30ec1c8e4cd885a7f42978ead2509cfdd350ad3547882
SHA512

e53147644d7e062eded21378e70538d4124fde41c72b228e6f3790f770a2e2f93daeac080884fc37eab6b74c8c7ab70684c20e915f4e599be5d6ec8233ddefbf

Score

10^/10

Malware Config

Extracted

Family

vidar

Version

50

Botnet

1131

C2

https://mastodon.social/@prophef6

https://noc.social/@prophef5

Attributes

profile_id
1131

Targets

- Target
  
  fc80f7f615d4130160c30ec1c8e4cd885a7f42978ead2509cfdd350ad3547882.dll
- Size
  
  646KB
- MD5
  
  a04d8167d9f4313b9f1e6ba38900306c
- SHA1
  
  3f0c0c5555707a52247b91452c75692c1f30c8b6
- SHA256
  
  fc80f7f615d4130160c30ec1c8e4cd885a7f42978ead2509cfdd350ad3547882
- SHA512
  
  e53147644d7e062eded21378e70538d4124fde41c72b228e6f3790f770a2e2f93daeac080884fc37eab6b74c8c7ab70684c20e915f4e599be5d6ec8233ddefbf
Score

10^/10

systembc vidar 1131 discovery evasion spyware stealer suricata trojan persistence
- SystemBC
  SystemBC is a proxy and remote administration tool first seen in 2019.
  trojan systembc
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
  suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
  suricata
- suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
  suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2
  suricata
- suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
  suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2
  suricata
- suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
  suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
  suricata
- suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
  suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
  suricata
- suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
  suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
  suricata
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Vidar Stealer
  stealer
- Downloads MZ/PE file
- Executes dropped EXE
- Sets service image path in registry
  persistence
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses 2FA software files, possible credential harvesting
  spyware stealer
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1 behavioral2