General

  • Target

    B499D366F01242597E6386FCBBBACFB7.exe

  • Size

    3.8MB

  • Sample

    210613-p4xphz8dzj

  • MD5

    b499d366f01242597e6386fcbbbacfb7

  • SHA1

    f4555ab40925523a3183adb353cde2d80aa5fad8

  • SHA256

    b566e04e4dde55640065fa942fcfa35ec3cb5f0c8b6057bfd0039ac4ebbc65f7

  • SHA512

    136fe6b35f1df85f5ea4121a1d3d64f54fbc6d5384ebfa9d69a4dd0c3e1073afd4592b62261080925513d4fa9b71a616d1c8e1e8cedb2a63e39d6b7b14a59401

Malware Config

Extracted

Family

redline

Botnet

PUB57-1

C2

pupdatastart.store:80

pupdata.online:80

Extracted

Family

vidar

Version

39.3

Botnet

706

C2

https://bandakere.tumblr.com

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://ppcspb.com/upload/

http://mebbing.com/upload/

http://twcamel.com/upload/

http://howdycash.com/upload/

http://lahuertasonora.com/upload/

http://kpotiques.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      B499D366F01242597E6386FCBBBACFB7.exe

    • Size

      3.8MB

    • MD5

      b499d366f01242597e6386fcbbbacfb7

    • SHA1

      f4555ab40925523a3183adb353cde2d80aa5fad8

    • SHA256

      b566e04e4dde55640065fa942fcfa35ec3cb5f0c8b6057bfd0039ac4ebbc65f7

    • SHA512

      136fe6b35f1df85f5ea4121a1d3d64f54fbc6d5384ebfa9d69a4dd0c3e1073afd4592b62261080925513d4fa9b71a616d1c8e1e8cedb2a63e39d6b7b14a59401

    • Modifies Windows Defender Real-time Protection settings

    • PlugX

      PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • 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.

    • Program crash

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks