General

  • Target

    3cV77bh.exe

  • Size

    271KB

  • Sample

    231010-fr4s4sdb95

  • MD5

    81a4d7e21e6a812a57d237b3655efd08

  • SHA1

    27263d111b89f01a085c6348ad8e0ff500d37f74

  • SHA256

    522d7107cd7725d1f7f26aee09fb4f8eec7faf94bd9d25544be6a8a205e6293f

  • SHA512

    44308da045cda575a0b700db47bb08a867597e73482f1ad1af08f8bce3b7b454af142a4a581fc1e7ff2649a0f2b39b3e77b60beb8b9fe27d4a2e299f67fcbb94

  • SSDEEP

    6144:GDKfTqHz6GV3Dmsiwyf0LvfhYuJAOarAeJa7AQrQS:GDK7QzZV36YLquJCAeUrQS

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

amadey

Version

3.89

C2

http://77.91.124.1/theme/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explothe.exe

  • strings_key

    36a96139c1118a354edf72b1080d4b2f

rc4.plain

Extracted

Family

redline

Botnet

6012068394_99

C2

https://pastebin.com/raw/8baCJyMF

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

stealc

C2

http://5.42.65.39

Attributes
  • url_path

    /bed95ea4798a5204.php

rc4.plain

Extracted

Family

redline

Botnet

magia

C2

77.91.124.55:19071

Targets

    • Target

      3cV77bh.exe

    • Size

      271KB

    • MD5

      81a4d7e21e6a812a57d237b3655efd08

    • SHA1

      27263d111b89f01a085c6348ad8e0ff500d37f74

    • SHA256

      522d7107cd7725d1f7f26aee09fb4f8eec7faf94bd9d25544be6a8a205e6293f

    • SHA512

      44308da045cda575a0b700db47bb08a867597e73482f1ad1af08f8bce3b7b454af142a4a581fc1e7ff2649a0f2b39b3e77b60beb8b9fe27d4a2e299f67fcbb94

    • SSDEEP

      6144:GDKfTqHz6GV3Dmsiwyf0LvfhYuJAOarAeJa7AQrQS:GDK7QzZV36YLquJCAeUrQS

    • 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.

    • Detected google phishing page

    • Detects Healer an antivirus disabler dropper

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • 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.

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks