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General

  • Target

    file

  • Size

    1.0MB

  • Sample

    231011-kfzr8sde63

  • MD5

    81b3f1622bd17dd42a0dab4ccac7e28c

  • SHA1

    29664760094d3b211d1ea7e7c2083c54462c4561

  • SHA256

    38ca03f3e5bf9c4b45789d786b4ace3bb805df322b821f66bea8132c92fc1eea

  • SHA512

    e820d9dce79ab2c783904b8ea796a86eb92dcb02829daf0e3cf85dd8db1a7a86ece9e7e58324436819f7e858742328c693227a829f2b5186bd051df7a38fac5c

  • SSDEEP

    24576:GyYxOIGbdsYZ5c8y2dUwKLog+qU7e3HTpi1R8OgH:VAOxSWRy6UwK0g+zejpCSO

Malware Config

Extracted

Family

redline

Botnet

breha

C2

77.91.124.55:19071

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
1
0x4b3b02b6
rc4.i32
1
0x6ea683ed

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
1
006700e5a2ab05704bbb0c589b88924d

Extracted

Family

redline

Botnet

kukish

C2

77.91.124.55:19071

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

redline

Botnet

pixelscloud

C2

85.209.176.171:80

Extracted

Family

redline

Botnet

6012068394_99

C2

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

Extracted

Family

smokeloader

Version

2020

C2

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

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

rc4.i32
1
0x33f8f0d2
rc4.i32
1
0xaa0488bb

Targets

    • Target

      file

    • Size

      1.0MB

    • MD5

      81b3f1622bd17dd42a0dab4ccac7e28c

    • SHA1

      29664760094d3b211d1ea7e7c2083c54462c4561

    • SHA256

      38ca03f3e5bf9c4b45789d786b4ace3bb805df322b821f66bea8132c92fc1eea

    • SHA512

      e820d9dce79ab2c783904b8ea796a86eb92dcb02829daf0e3cf85dd8db1a7a86ece9e7e58324436819f7e858742328c693227a829f2b5186bd051df7a38fac5c

    • SSDEEP

      24576:GyYxOIGbdsYZ5c8y2dUwKLog+qU7e3HTpi1R8OgH:VAOxSWRy6UwK0g+zejpCSO

    • 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.

    • 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

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • 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.

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

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