General

  • Target

    b8a974ff0066513b4fac4f6a256a39933af90a9df9b03d6234d1a4bf88b7b0e8.exe

  • Size

    217KB

  • Sample

    240215-gakjksaf97

  • MD5

    ea8dcf2eee76f737f8796bdbf7e33a06

  • SHA1

    a30a310bf397ac2c5c15df009f12c91b7a2641b4

  • SHA256

    b8a974ff0066513b4fac4f6a256a39933af90a9df9b03d6234d1a4bf88b7b0e8

  • SHA512

    305c1b28f68dff88cf0006d61c3210e9b32f32490ddfcd361fc0923214e39aacd936a1f3a195b6fd3a876f5eacf054ce22d15b6fcc254024d33f5f6e13ea1e3b

  • SSDEEP

    3072:d3tinQnUoC0pvo/Uw/3BofIclBYKw6tkp3P00gpUCL5HVFUjWjJkp:d3cnQnO+vNlBH1t4P0a65HYjWjm

Malware Config

Extracted

Family

smokeloader

Botnet

tfd5

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Extracted

Family

djvu

C2

http://habrafa.com/test1/get.php

Attributes
  • extension

    .lkhy

  • offline_id

    OxV6DGl22io8sqMOW1zCCOlzPiv4f1Vqzw7Y8zt1

  • payload_url

    http://brusuax.com/dl/build2.exe

    http://habrafa.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://we.tl/t-uNdL2KHHdy Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0851ASdw

rsa_pubkey.plain

Extracted

Family

vidar

Version

7.8

Botnet

13bd7290c1961db27b4ede41bfbf4c5e

C2

https://t.me/karl3on

https://steamcommunity.com/profiles/76561199637071579

Attributes
  • profile_id_v2

    13bd7290c1961db27b4ede41bfbf4c5e

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Extracted

Family

redline

Botnet

LogsDiller Cloud (Telegram: @logsdillabot)

C2

5.42.65.38:46185

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Extracted

Family

lumma

C2

https://resergvearyinitiani.shop/api

Targets

    • Target

      b8a974ff0066513b4fac4f6a256a39933af90a9df9b03d6234d1a4bf88b7b0e8.exe

    • Size

      217KB

    • MD5

      ea8dcf2eee76f737f8796bdbf7e33a06

    • SHA1

      a30a310bf397ac2c5c15df009f12c91b7a2641b4

    • SHA256

      b8a974ff0066513b4fac4f6a256a39933af90a9df9b03d6234d1a4bf88b7b0e8

    • SHA512

      305c1b28f68dff88cf0006d61c3210e9b32f32490ddfcd361fc0923214e39aacd936a1f3a195b6fd3a876f5eacf054ce22d15b6fcc254024d33f5f6e13ea1e3b

    • SSDEEP

      3072:d3tinQnUoC0pvo/Uw/3BofIclBYKw6tkp3P00gpUCL5HVFUjWjJkp:d3cnQnO+vNlBH1t4P0a65HYjWjm

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • DcRat

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

    • Detect Vidar Stealer

    • Detected Djvu ransomware

    • Detects LgoogLoader payload

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • LgoogLoader

      A downloader capable of dropping and executing other malware families.

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • 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.

    • UAC bypass

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Detects Windows exceutables bypassing UAC using CMSTP utility, command line and INF

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables embedding command execution via IExecuteCommand COM object

    • Detects executables packed with Themida

    • Detects executables packed with unregistered version of .NET Reactor

    • Detects executables potentially checking for WinJail sandbox window

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • UPX dump on OEP (original entry point)

    • XMRig Miner payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • 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.

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Windows security modification

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks