General

  • Target

    356d062896f00acbc36de0e0a68cf762c269386230d66009a2ceea92f7b22d2b

  • Size

    280KB

  • Sample

    220922-pz1wvsfcdk

  • MD5

    231968c7ccf7b87cc4f934e489f87a46

  • SHA1

    d3294362646a550a547a42797127273f6c80ea06

  • SHA256

    356d062896f00acbc36de0e0a68cf762c269386230d66009a2ceea92f7b22d2b

  • SHA512

    895976c7a445c1c58ea2cada7b2bb60822e897059082fe0e6d8fa1bd9c73d70d2aad8a274b87139600e02efb5ecc637093eef14259a4645f59dc0780045665a0

  • SSDEEP

    6144:3SLwXcv+Ahx8oLIpOwvyu2g6NJK9KWyQjMWv0fNigavwVftzC:3S0M2Ah7SOwvyu2BJK9KmjMVfwA+

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .aabn

  • offline_id

    MyudhIExJux2oRQXw95TT1oAPu7mvqRMzxr1eet1

  • 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-4Xcf4IX21n 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: 0565Jhyjd

rsa_pubkey.plain

Extracted

Family

raccoon

Botnet

7394a7fc5da9794209d8b0503ca4abf4

C2

http://45.8.145.203

rc4.plain

Extracted

Family

redline

Botnet

LogsDiller Cloud (Sup: @mr_golds)

C2

77.73.134.27:8163

Attributes
  • auth_value

    56c6f7b9024c076f0a96931453da7e56

Targets

    • Target

      356d062896f00acbc36de0e0a68cf762c269386230d66009a2ceea92f7b22d2b

    • Size

      280KB

    • MD5

      231968c7ccf7b87cc4f934e489f87a46

    • SHA1

      d3294362646a550a547a42797127273f6c80ea06

    • SHA256

      356d062896f00acbc36de0e0a68cf762c269386230d66009a2ceea92f7b22d2b

    • SHA512

      895976c7a445c1c58ea2cada7b2bb60822e897059082fe0e6d8fa1bd9c73d70d2aad8a274b87139600e02efb5ecc637093eef14259a4645f59dc0780045665a0

    • SSDEEP

      6144:3SLwXcv+Ahx8oLIpOwvyu2g6NJK9KWyQjMWv0fNigavwVftzC:3S0M2Ah7SOwvyu2BJK9KmjMVfwA+

    • 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.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

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