Overview

overview

10

Static

static

3

d11c8d99f5...ab.exe

windows7-x64

10

d11c8d99f5...ab.exe

windows10-2004-x64

10

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General

  • Target

    d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

  • Size

    768KB

  • Sample

    240409-h1k4gahc22

  • MD5

    caf850efed7232888c55264464c05f6e

  • SHA1

    d3ee060babd618726f3e1037832744caf5f698ac

  • SHA256

    d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

  • SHA512

    1efaefee791c661c01d243c2204dc1014599351fa9c44501d92a1c5234acb4a0a387ac7856c82884f7279c4ccb6ec7c77a2078fee6a000bfb8422604cdefedc4

  • SSDEEP

    24576:iT9sB8HYVOPP/5Q9Jp1D00GAwNKeVUW2UjEfo:iT9M8HmmH5GpJxGAwgeuWbjEf

Score
10/10
djvumylobotbotnetdiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test1/get.php

Attributes
  • extension

    .vvew

  • offline_id

    rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://acacaca.org/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-QsoSRIeAK6 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: 0530Jhyjd

rsa_pubkey.plain

Extracted

Family

mylobot

C2

pqrqtaz.ru:9879

pickcas.ru:6464

quwkbin.ru:3496

rkbupij.ru:6653

pcqmayq.ru:3629

mmuliwe.ru:3541

stoizji.ru:5189

sfdfrhh.ru:3511

ynciazz.ru:4127

mkglhnw.ru:1946

njeeili.ru:9987

dldzeoo.ru:7525

tkbiqjq.ru:5145

uenosbl.ru:2935

faayshc.ru:9865

nttfazc.ru:6761

nfwsyog.ru:7172

uyfusxm.ru:7372

hxkclwx.ru:1294

zgoysam.ru:2338

Targets

    • Target

      d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

    • Size

      768KB

    • MD5

      caf850efed7232888c55264464c05f6e

    • SHA1

      d3ee060babd618726f3e1037832744caf5f698ac

    • SHA256

      d11c8d99f57ac6608a9ae7277d3bd22a23d2fd109aa36dfa0f9ad93c7a84e2ab

    • SHA512

      1efaefee791c661c01d243c2204dc1014599351fa9c44501d92a1c5234acb4a0a387ac7856c82884f7279c4ccb6ec7c77a2078fee6a000bfb8422604cdefedc4

    • SSDEEP

      24576:iT9sB8HYVOPP/5Q9Jp1D00GAwNKeVUW2UjEfo:iT9M8HmmH5GpJxGAwgeuWbjEf

    Score
    10/10
    djvumylobotbotnetdiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Mylobot

      Botnet which first appeared in 2017 written in C++.

      botnetmylobot

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • 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 SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks