Overview

overview

10

Static

static

f3a4459b98...in.exe

windows7_x64

10

f3a4459b98...in.exe

windows10_x64

10

Sharing

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General

  • Target

    f3a4459b98919ba055a2c9437d092d18c889d5a1bbaea31a2cbe5ac250bc600a.bin.zip

  • Size

    673KB

  • Sample

    211201-jspx5adgh6

  • MD5

    df83607f56aef43576c6c1c3a98fdd88

  • SHA1

    5f8271cbca57fb3c86a3a9fd89643e6dbad503f3

  • SHA256

    20ec4a57805436a67d774c207f0071c2946f21620b7d329dc326faba2b9e2e25

  • SHA512

    1601f1ed9d83f98002b0b1df30833022cf2c4f431bf9965ab8e4002cecc416e12df4fedc86bb8ab5bad80fa1027d32f0c0f46e3e6d94ac106950e45118ca796c

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://tbpws.top/fhsgtsspen6/get.php

Attributes
  • extension

    .wiot

  • offline_id

    sZ9rF572Y03XTlUZsBUVlV9YksFOEsyIfGx58yt1

  • payload_url

    http://securebiz.org/dl/build2.exe

    http://tbpws.top/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-CtDpAM1g5f 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: manager@mailtemp.ch Reserve e-mail address to contact us: managerhelper@airmail.cc Your personal ID: 0333gSd743d

rsa_pubkey.plain

Targets

    • Target

      f3a4459b98919ba055a2c9437d092d18c889d5a1bbaea31a2cbe5ac250bc600a.bin

    • Size

      847KB

    • MD5

      2d4445eb93e7f578faea18f9778394e6

    • SHA1

      e1a5cb23e196a248fe928aadd002dbf8e786ffaa

    • SHA256

      f3a4459b98919ba055a2c9437d092d18c889d5a1bbaea31a2cbe5ac250bc600a

    • SHA512

      c4b6c88ca9c75acd3ffcc0ea8f8b4f57d2b60eadb0f8f8b9838dcf8fb8881f557a71cb58366d35ce808de1e0b9dadd16242accb0e3978d7dcc088c8c6448657b

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • 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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks