formbook

Target

setup_x86_x64_install.exe
Size

4.5MB
Sample

211031-w3r7fsdafj
MD5

3da25ccfa9c258e3ae26854391531c7b
SHA1

1ed5613b0ad8ab4c47f07e52199a4edd27be40e6
SHA256

62be0ca52ea9ebc4c577d597b919f6b90cebdcc2179d7d482a04bf5731eec720
SHA512

defed576df3d8325259884b485a0dc7cd673c47028e77f189255e27dca312a0befdc8dc84106cc3103a3027e67a835fad899f9361076a64831db144354a4618c

Score

10^/10

Malware Config

Extracted

Family

redline

Botnet

srtupdate33

135.181.129.119:4805

Extracted

Family

smokeloader

Version

2020

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32

Extracted

Family

vidar

Version

41.6

Botnet

933

https://mas.to/@lilocc

Attributes

profile_id
933

Targets

- Target
  
  setup_x86_x64_install.exe
- Size
  
  4.5MB
- MD5
  
  3da25ccfa9c258e3ae26854391531c7b
- SHA1
  
  1ed5613b0ad8ab4c47f07e52199a4edd27be40e6
- SHA256
  
  62be0ca52ea9ebc4c577d597b919f6b90cebdcc2179d7d482a04bf5731eec720
- SHA512
  
  defed576df3d8325259884b485a0dc7cd673c47028e77f189255e27dca312a0befdc8dc84106cc3103a3027e67a835fad899f9361076a64831db144354a4618c
Score

10^/10

formbook redline smokeloader socelars vidar 933 srtupdate33 aspackv2 backdoor collection discovery evasion infostealer persistence spyware stealer suricata themida trojan
- Formbook
  Formbook is a data stealing malware which is capable of stealing data.
  trojan spyware stealer formbook
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- RedLine
  RedLine Stealer is a malware family written in C#, first appearing in early 2020.
  infostealer redline
- RedLine Payload
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Socelars
  Socelars is an infostealer targeting browser cookies and credit card credentials.
  stealer socelars
- Socelars Payload
- Suspicious use of NtCreateProcessExOtherParentProcess
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- suricata: ET MALWARE ClipBanker Variant Activity (POST)
  suricata: ET MALWARE ClipBanker Variant Activity (POST)
  suricata
- suricata: ET MALWARE FormBook CnC Checkin (GET)
  suricata: ET MALWARE FormBook CnC Checkin (GET)
  suricata
- suricata: ET MALWARE FormBook CnC Checkin (POST) M2
  suricata: ET MALWARE FormBook CnC Checkin (POST) M2
  suricata
- suricata: ET MALWARE GCleaner Downloader Activity M5
  suricata: ET MALWARE GCleaner Downloader Activity M5
  suricata
- 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 Terse alphanumeric executable downloader high likelihood of being hostile
  suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
  suricata
- suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
  suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
  suricata
- suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
  suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
  suricata
- suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2
  suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin M2
  suricata
- suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND
  suricata: ET MALWARE Windows dir Microsoft Windows DOS prompt command exit OUTBOUND
  suricata
- suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND
  suricata: ET MALWARE Windows route Microsoft Windows DOS prompt command exit OUTBOUND
  suricata
- Checks for common network interception software
  Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
  evasion
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Vidar Stealer
  stealer
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Blocklisted process makes network request
- Downloads MZ/PE file
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies Windows Firewall
  evasion
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Accesses 2FA software files, possible credential harvesting
  spyware stealer
- Accesses Microsoft Outlook profiles
  collection
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- Adds Run key to start application
  persistence
- 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
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1