General

  • Target

    c544f0e4a9ddbc043cfc9694d4c3f80dd982b979633cf7378c3ea0c8921ab70a

  • Size

    1.0MB

  • Sample

    230923-zfn33aac9y

  • MD5

    cec94db8cd197736744467a8bae418cc

  • SHA1

    58838c41150dd54d6c4f7ff383fc5ebf849d8f93

  • SHA256

    c544f0e4a9ddbc043cfc9694d4c3f80dd982b979633cf7378c3ea0c8921ab70a

  • SHA512

    7f64940f16c873bff4e9b4006194b2b9352b1ccccf56d43d0b320c89719729a31ebcc6dbd65889e1ee468a5667322550ad7b4142fc3569290a2f6a759e9d90fd

  • SSDEEP

    24576:myX94BauWG26QXMu8M2HBwnJdoKH6+1hJwyhLs9:1GBX26ruP2hwJdTamhJ+

Malware Config

Extracted

Family

redline

Botnet

nanya

C2

77.91.124.82:19071

Attributes
  • auth_value

    640aa5afe54f566d8795f0dc723f8b52

Extracted

Family

amadey

Version

3.89

C2

http://77.91.68.52/mac/index.php

http://77.91.68.78/help/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explonde.exe

  • strings_key

    916aae73606d7a9e02a1d3b47c199688

rc4.plain
rc4.plain

Extracted

Family

smokeloader

Version

2022

C2

http://servermlogs27.xyz/statweb255/

http://servmblog45.xyz/statweb255/

http://demblog575.xyz/statweb255/

http://admlogs85x.xyz/statweb255/

http://blogmstat389.xyz/statweb255/

http://blogmstat255.xyz/statweb255/

rc4.i32
rc4.i32

Targets

    • Target

      c544f0e4a9ddbc043cfc9694d4c3f80dd982b979633cf7378c3ea0c8921ab70a

    • Size

      1.0MB

    • MD5

      cec94db8cd197736744467a8bae418cc

    • SHA1

      58838c41150dd54d6c4f7ff383fc5ebf849d8f93

    • SHA256

      c544f0e4a9ddbc043cfc9694d4c3f80dd982b979633cf7378c3ea0c8921ab70a

    • SHA512

      7f64940f16c873bff4e9b4006194b2b9352b1ccccf56d43d0b320c89719729a31ebcc6dbd65889e1ee468a5667322550ad7b4142fc3569290a2f6a759e9d90fd

    • SSDEEP

      24576:myX94BauWG26QXMu8M2HBwnJdoKH6+1hJwyhLs9:1GBX26ruP2hwJdTamhJ+

    • Amadey

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

    • Detect rhadamanthys stealer shellcode

    • Detects Healer an antivirus disabler dropper

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • Phemedrone

      An information and wallet stealer written in C#.

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (222) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks