Overview

overview

10

Static

static

3

824a76c398...dc.exe

windows7-x64

10

824a76c398...dc.exe

windows10-1703-x64

10

824a76c398...dc.exe

windows11-21h2-x64

10

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General

  • Target

    824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc.zip

  • Size

    172KB

  • Sample

    240307-ygds2scc37

  • MD5

    3a76014de472ba5c4afc4af54d121242

  • SHA1

    72620d8068e0c1f456d1b02c66f7dd5a45047d38

  • SHA256

    b70ec8c6a31fd85c8161f4b94b95aa57ae59647e4559ae47b823ddcb906f7bbe

  • SHA512

    7bd0f0f65609e4f8b9121f841cc23a85b1490cb72ed97d907f33b12c9bd8d24d508e33ab6fe3eba54060562f9777ab100a96be8534a39fa150bbf5c3a773f2db

  • SSDEEP

    3072:GI2IW5PurljM6L6JgveEhwiMPbAJogr/wtG1uxjulrxZnJRZaYVEOs:S/5PoS6WJghHMjmVr4wzxZay1s

Score
10/10
buranzeppelinpersistenceransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\!!! 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] Reserved email: [email protected] Your personal ID: 641-8F5-BC8 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:\$Recycle.Bin\!!! 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] Reserved email: [email protected] Your personal ID: AF2-D34-5A6 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:\$Recycle.Bin\!!! 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] Reserved email: [email protected] Your personal ID: 16E-057-8AB 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

      824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc.exe

    • Size

      416KB

    • MD5

      dcef208fcdac3345c6899a478d16980f

    • SHA1

      fd127c6ecaee57972b7acc3b8e4a2d3b25f928e0

    • SHA256

      824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc

    • SHA512

      28e403a6d66895a2461828f49acb2862602e6be94405657bee0aec5d35d86dd83713c4cd1f33d28b94fed6546633683f9ffa693d37dc94bc862f6584833f9fba

    • SSDEEP

      6144:iYdiLQNWloaXoLJYksETr0vpvejH6ols25A0LJjI4WHB/N7:BiLQqosgZs+8vejap0LJ6h

    Score
    10/10
    buranzeppelinpersistenceransomware

    • Buran

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

      ransomwareburan

    • Detects Zeppelin payload

    • Zeppelin Ransomware

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

      ransomwarezeppelin

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Renames multiple (7344) files with added filename extension

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

      ransomware

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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.

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks