General

  • Target

    9b9d871a16182942e162ffd30d27b37822a105bf3946082593ab9e3f2a3e5926

  • Size

    149KB

  • Sample

    210828-rcmq5tp7bj

  • MD5

    1b43abb98536a1786f52929f9644ed91

  • SHA1

    7fcf00f99004c2535bc14b57f4407d2f6a1460e5

  • SHA256

    9b9d871a16182942e162ffd30d27b37822a105bf3946082593ab9e3f2a3e5926

  • SHA512

    59532684911f92bd29da5a276ee99c7e2d1672af4b32546c6451075eeee1c6a7b6239cde8698ddc48036d64bc7f90689e010b7fa9dd9685bfae35dd58b740eb4

Malware Config

Extracted

Path

C:\!!! 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. PAY FAST 500$=0.013 btc or the price will increase tomorrow bitcoin address bc1qqxnp9z0ff8x852dyflp5r9r6rzse8jl5hzmqz8 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? [email protected] TELEGRAM @ payfast290 Your personal ID: 134-E3D-2E3 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

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

WORD1

C2

94.26.249.88:1902

Targets

    • Target

      9b9d871a16182942e162ffd30d27b37822a105bf3946082593ab9e3f2a3e5926

    • Size

      149KB

    • MD5

      1b43abb98536a1786f52929f9644ed91

    • SHA1

      7fcf00f99004c2535bc14b57f4407d2f6a1460e5

    • SHA256

      9b9d871a16182942e162ffd30d27b37822a105bf3946082593ab9e3f2a3e5926

    • SHA512

      59532684911f92bd29da5a276ee99c7e2d1672af4b32546c6451075eeee1c6a7b6239cde8698ddc48036d64bc7f90689e010b7fa9dd9685bfae35dd58b740eb4

    • Buran

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

    • 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.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks