Extracted

Extracted

Extracted

• • Target

    RNSM00484.7z

  • Size

    39.8MB

  • MD5

    545ebcd86c258f0f668d7566ff18981d

  • SHA1

    2ddc937720ea4186d2808f7ca964ea0cad94259c

  • SHA256

    4aeb68c64e5569df9948d6406af74f572366a856682d5642737ebf4f5466bd73

  • SHA512

    99ab06d5014c7c3afc198e09f20a08d8b3855d99661bfb5c1b35b999f6869a7b18c7eac7cee05eac004d22d896acee620efc22fd3683d097fbd9760a27cdacec

  • SSDEEP

    786432:mYRsUB/xhmcQQdUY5GhoYMkPi8kWbia3+uoLiFde04XlT9OBhDoZBOTLSNw:mYRsiQ4coFuFbHODLgdeHluDoZBOTLN

  Score

  10^/10

  avoslockerdjvugandcrabmodiloaderurelasaspackv2backdoordefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwaretrojanupx

  • Avoslocker Ransomware

    Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.

    ransomwareavoslocker

  • Detected Djvu ransomware

  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu

  • GandCrab payload

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

    ransomwarebackdoorgandcrab

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    trojanmodiloader

  • UAC bypass

    evasiontrojan

  • Urelas

    Urelas is a trojan targeting card games.

    trojanurelas

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • ModiLoader Second Stage

  • Renames multiple (159) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • ASPack v2.12-2.42

    Detects executables packed with ASPack v2.12-2.42

    aspackv2

  • Checks computer location settings

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

  • Executes dropped EXE

  • Modifies file permissions

    discovery

  • UPX packed file

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

    upx

  • Adds Run key to start application

    persistence

  • Checks whether UAC is enabled

    evasiontrojan

  • 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.

  • Uses Tor communications

    Malware can proxy its traffic through Tor for more anonymity.

  • Drops file in System32 directory

  • Sets desktop wallpaper using registry

    ransomware
  behavioral1