General

  • Target

    3ac926d3bca5450ce48d10c253700ae4_JaffaCakes118

  • Size

    212KB

  • Sample

    240512-srr6jaca91

  • MD5

    3ac926d3bca5450ce48d10c253700ae4

  • SHA1

    0a918e434b1f8e125fb23a71c7317e6b16f3df23

  • SHA256

    b0fa28ac0f0657906df6312a22baf99111cbf27afeaab98c92eeba4b07fddeaa

  • SHA512

    ef62bc011a2fdff15b466f798bcbe5c4308e925fb1240d7621f65ede89432a329e00c80a917cc5be401b7029a2c5a497a9bc09436c3f1c05259a2e3479c581c5

  • SSDEEP

    6144:Via1gMHvEXtAuL5Qnqn64DQFu/U3buRKlemZ9DnGAe+hH+8:VIMH2Gw5Qb4DQFu/U3buRKlemZ9DnGAV

Malware Config

Extracted

Path

C:\Program Files\Java\jdk1.7.0_80\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Reserved email: [email protected] Your personal ID: 14E-AFB-3D5 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Extracted

Path

C:\Program Files\dotnet\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Reserved email: [email protected] Your personal ID: 29C-FBA-4F0 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Targets

    • Target

      3ac926d3bca5450ce48d10c253700ae4_JaffaCakes118

    • Size

      212KB

    • MD5

      3ac926d3bca5450ce48d10c253700ae4

    • SHA1

      0a918e434b1f8e125fb23a71c7317e6b16f3df23

    • SHA256

      b0fa28ac0f0657906df6312a22baf99111cbf27afeaab98c92eeba4b07fddeaa

    • SHA512

      ef62bc011a2fdff15b466f798bcbe5c4308e925fb1240d7621f65ede89432a329e00c80a917cc5be401b7029a2c5a497a9bc09436c3f1c05259a2e3479c581c5

    • SSDEEP

      6144:Via1gMHvEXtAuL5Qnqn64DQFu/U3buRKlemZ9DnGAe+hH+8:VIMH2Gw5Qb4DQFu/U3buRKlemZ9DnGAV

    • Buran

      Ransomware-as-a-service based on the VegaLocker family first identified in 2019.

    • Detects Zeppelin payload

    • Zeppelin Ransomware

      Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (7385) files with added filename extension

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

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • 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.

MITRE ATT&CK Enterprise v15

Tasks