General

  • Target

    74afedc7e1ddfe9e427f4f32c964351abffecc6162f988846d4faa0c91c847f9

  • Size

    154KB

  • Sample

    231207-e3dwdsagh5

  • MD5

    1e990fd946480bc5d5c2ee0172cd27fb

  • SHA1

    89d03836415af340954becb47fafcc1be958f4ea

  • SHA256

    49edd5552e23969ee92d51b31f85b09732981fe42f0f7bbc9656bf94c02a26db

  • SHA512

    c9bc9bd03487349706b089fabe354ca109868893282b4b7e45e391b0a073cb0273b17dc8fea98a197d2879339710d4ff91aec4d5995a6a9bbff2be68a81da701

  • SSDEEP

    3072:ZWWvSg2LTafzJ7T29bfxYjPJHyvyQD6nLkV+ARzFSIxLagc3jMQDVEXi:afLTed7T29bfxcJc4a3zFSOe/DWi

Malware Config

Extracted

Family

smokeloader

Botnet

pu10

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .nbzi

  • offline_id

    csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1

  • payload_url

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

    http://zexeq.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-8dGJ2tqlOd 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: 0832ASdw

rsa_pubkey.plain

Extracted

Family

smokeloader

Version

2022

C2

http://81.19.131.34/fks/index.php

rc4.i32
rc4.i32

Extracted

Family

risepro

C2

193.233.132.51

Targets

    • Target

      74afedc7e1ddfe9e427f4f32c964351abffecc6162f988846d4faa0c91c847f9

    • Size

      301KB

    • MD5

      dd4e955f8edafe4070dc32eae77d39e6

    • SHA1

      692122e9c24e56a3123224b6c4009c8cb4c0abd0

    • SHA256

      74afedc7e1ddfe9e427f4f32c964351abffecc6162f988846d4faa0c91c847f9

    • SHA512

      11040e58955ede3c8f9fbbaa1d76615f97db23cb031c5cace496326e23b74ea7aa86dba13209de953e31e028b110a92bbd2e2105c561730b144847b86b69c4a7

    • SSDEEP

      3072:SwKoS/nIzAlQl0sQRA7VrW8vf343jrsN59g7Vdb9r/+:SzjIz8kVrDfIzo9gDh

    • DcRat

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

    • Detect ZGRat V1

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Downloads MZ/PE file

    • 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

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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.

    • 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.

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks