General

  • Target

    b276f260b21d9e9931d7efbfe7a86fcd4543eb4e6200b72339ef99155ac20e46

  • Size

    280KB

  • Sample

    220922-t32d1sfffn

  • MD5

    de08a931900c956106ab4f6607e1a89c

  • SHA1

    e31028a2eb838311eafc04238333799f2d7b92f9

  • SHA256

    b276f260b21d9e9931d7efbfe7a86fcd4543eb4e6200b72339ef99155ac20e46

  • SHA512

    c2f3b7b1830de2e72d18c41c3d1ea8053ff3487cd10cfb8a37a28a747fc3b90aa7fb510d7e446efc13c26e9ce1804b686ec2895cbe79721f83d2243ccda7c518

  • SSDEEP

    6144:1FlVSw16+7LeH4C24E4myLZfNcO6R0VIACigavwVfQr:1F/rbG4C245maZfhvVIiF

Malware Config

Extracted

Family

raccoon

Botnet

7394a7fc5da9794209d8b0503ca4abf4

C2

http://45.8.145.203

rc4.plain

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .ofww

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

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

    http://winnlinne.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-EWKSsSJiVn 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@bestyourmail.ch Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0569Jhyjd

rsa_pubkey.plain

Extracted

Family

redline

Botnet

LogsDiller Cloud (Sup: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    56c6f7b9024c076f0a96931453da7e56

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      b276f260b21d9e9931d7efbfe7a86fcd4543eb4e6200b72339ef99155ac20e46

    • Size

      280KB

    • MD5

      de08a931900c956106ab4f6607e1a89c

    • SHA1

      e31028a2eb838311eafc04238333799f2d7b92f9

    • SHA256

      b276f260b21d9e9931d7efbfe7a86fcd4543eb4e6200b72339ef99155ac20e46

    • SHA512

      c2f3b7b1830de2e72d18c41c3d1ea8053ff3487cd10cfb8a37a28a747fc3b90aa7fb510d7e446efc13c26e9ce1804b686ec2895cbe79721f83d2243ccda7c518

    • SSDEEP

      6144:1FlVSw16+7LeH4C24E4myLZfNcO6R0VIACigavwVfQr:1F/rbG4C245maZfhvVIiF

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen 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.

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Deletes itself

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • 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 Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks