General

  • Target

    c8edbc2a072ac9e68a46868aeb7c996aa5d1fe5f8afb3d8ff15b1be4cb3a52a1.exe

  • Size

    4.3MB

  • Sample

    240529-cb864sef84

  • MD5

    b162133322f47da52b67dab3f9b3b21e

  • SHA1

    2c2ff9390bb11ae1f62a3973cf97d39be150639d

  • SHA256

    c8edbc2a072ac9e68a46868aeb7c996aa5d1fe5f8afb3d8ff15b1be4cb3a52a1

  • SHA512

    71548751c2094aa5b27228198541487616dda78b8f06239188cc57b2509903b7d1b5ca00447363e0a1cbe504eb72ce05dbcff258aac5d50d3e366dec32ec4491

  • SSDEEP

    24576:qmkYu1/Al/K6eVhA0mNC301+S45EcnlqZBU6jWUSiQoaUl4IZlWQyhvAYtkEwrSX:qmkYu1/AlC6o01qE46DZlxgXIf44cl

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7000

beshomandotestbesnd.run.place:7000

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    cmd.exe

  • telegram

    https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

Extracted

Family

redline

Botnet

DOCX

C2

beshomandotestbesnd.run.place:1111

Targets

    • Target

      c8edbc2a072ac9e68a46868aeb7c996aa5d1fe5f8afb3d8ff15b1be4cb3a52a1.exe

    • Size

      4.3MB

    • MD5

      b162133322f47da52b67dab3f9b3b21e

    • SHA1

      2c2ff9390bb11ae1f62a3973cf97d39be150639d

    • SHA256

      c8edbc2a072ac9e68a46868aeb7c996aa5d1fe5f8afb3d8ff15b1be4cb3a52a1

    • SHA512

      71548751c2094aa5b27228198541487616dda78b8f06239188cc57b2509903b7d1b5ca00447363e0a1cbe504eb72ce05dbcff258aac5d50d3e366dec32ec4491

    • SSDEEP

      24576:qmkYu1/Al/K6eVhA0mNC301+S45EcnlqZBU6jWUSiQoaUl4IZlWQyhvAYtkEwrSX:qmkYu1/AlC6o01qE46DZlxgXIf44cl

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • 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

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables containing artifacts associated with disabling Widnows Defender

    • Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

    • Detects executables packed with Themida

    • Detects executables using Telegram Chat Bot

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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.

    • Drops startup file

    • 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 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks