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General

  • Target

    2692e1edf3bcd13e3952b7e50b0e5a74a901924733ede0e5cd30e3b2189eeb4b

  • Size

    230KB

  • Sample

    231209-arvybadfcq

  • MD5

    aa3b89d8bb9da6a960251cccf7303c47

  • SHA1

    8f7613bbb94d7dd214b9a86c09a167b3e484b00a

  • SHA256

    2692e1edf3bcd13e3952b7e50b0e5a74a901924733ede0e5cd30e3b2189eeb4b

  • SHA512

    e968ecd69923261bffe4b743e1a387f9fa56049c410e6a6be87cd5099d8e50e0affd4691b8172aec079113da66c021045a072d12d8b3faf6e3b20dbb4f1c2c92

  • SSDEEP

    3072:Gd2AMYhnG071N+98b2TmkMcEkl8uB5/S0U7IavaVrPvNRacoGiWHFK:RAMKn97OH9VP5FkISIrPOcBH

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

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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0832ASdw

rsa_pubkey.plain

Extracted

Family

risepro

C2

193.233.132.51

Targets

    • Target

      2692e1edf3bcd13e3952b7e50b0e5a74a901924733ede0e5cd30e3b2189eeb4b

    • Size

      230KB

    • MD5

      aa3b89d8bb9da6a960251cccf7303c47

    • SHA1

      8f7613bbb94d7dd214b9a86c09a167b3e484b00a

    • SHA256

      2692e1edf3bcd13e3952b7e50b0e5a74a901924733ede0e5cd30e3b2189eeb4b

    • SHA512

      e968ecd69923261bffe4b743e1a387f9fa56049c410e6a6be87cd5099d8e50e0affd4691b8172aec079113da66c021045a072d12d8b3faf6e3b20dbb4f1c2c92

    • SSDEEP

      3072:Gd2AMYhnG071N+98b2TmkMcEkl8uB5/S0U7IavaVrPvNRacoGiWHFK:RAMKn97OH9VP5FkISIrPOcBH

    • DcRat

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

    • Detect ZGRat V1

    • Detected Djvu ransomware

    • Detected google phishing page

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • 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.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks