General

  • Target

    f547ccd9ffde9ef4354831ec594ab0502aba1ca7433a02d592b1707b7249e542exe.exe

  • Size

    266KB

  • Sample

    231207-ygys8afb44

  • MD5

    1ee164b4e1936f89673db04b50894288

  • SHA1

    bae06c447e623f5cd845cd0b5c5e1b03b832daee

  • SHA256

    f547ccd9ffde9ef4354831ec594ab0502aba1ca7433a02d592b1707b7249e542

  • SHA512

    5e2191cde177f93740663e222dc39e780d9ab55c695482038b9401ea36e2a7bcf2a9ed2f5602aec9e8b2aec03144048881df574a4cf22d24ffb95bbf81c4b7e0

  • SSDEEP

    1536:pbqksGn0/P69uQ2CbvRdTTcgwEqJROH2l5D+QNUxo5cLFl1XWAlvjo5pbiRz2Ab7:pbem9uWbvjTbkQWl5D+s5W7Vdb9r/+

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

1206-55000

C2

38.47.221.193:34368

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .nbzi

  • offline_id

    csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1

  • payload_url

    http://brusuax.com/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-8dGJ2tqlOd Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: support@freshmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0832ASdw

rsa_pubkey.plain

Extracted

Family

redline

Botnet

55000

C2

38.47.221.193:34368

Targets

    • Target

      f547ccd9ffde9ef4354831ec594ab0502aba1ca7433a02d592b1707b7249e542exe.exe

    • Size

      266KB

    • MD5

      1ee164b4e1936f89673db04b50894288

    • SHA1

      bae06c447e623f5cd845cd0b5c5e1b03b832daee

    • SHA256

      f547ccd9ffde9ef4354831ec594ab0502aba1ca7433a02d592b1707b7249e542

    • SHA512

      5e2191cde177f93740663e222dc39e780d9ab55c695482038b9401ea36e2a7bcf2a9ed2f5602aec9e8b2aec03144048881df574a4cf22d24ffb95bbf81c4b7e0

    • SSDEEP

      1536:pbqksGn0/P69uQ2CbvRdTTcgwEqJROH2l5D+QNUxo5cLFl1XWAlvjo5pbiRz2Ab7:pbem9uWbvjTbkQWl5D+s5W7Vdb9r/+

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect ZGRat V1

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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.

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Deletes itself

    • Executes dropped EXE

    • Modifies file permissions

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

File and Directory Permissions Modification

1
T1222

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Tasks