General

  • Target

    bef2253333e2663aa740460ede3ee25e.exe

  • Size

    29.0MB

  • Sample

    230117-3et5gaaa66

  • MD5

    bef2253333e2663aa740460ede3ee25e

  • SHA1

    774d4ebdb884b4e32ffe7e36fa691aaaf5505f3c

  • SHA256

    d058305ddf083f58cb70b13eb26b49c029b8f2eb329c98c1574b2489f6a44809

  • SHA512

    160cb1e4b383be3f0809bc79a2d12176f146510070b4ca5c23db0344c571115c0fd2146cfdb72ceea92abe840c02070cd8f08581211acb6b0eb39ea92222d6cb

  • SSDEEP

    786432:QuPxiY4bJfwP+v53za5RuHKhPzMYd36qfd3a:DpiTbJYPIlnqBMyBa

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    123

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/mchxnAbT

  • delay

    80

  • download_payload

    false

  • install

    true

  • install_name

    WindosCert.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

NEW

Mutex

ihouhh

Attributes
  • delay

    80

  • install

    true

  • install_file

    UpdateChromeDay.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/mchxnAbT

aes.plain

Extracted

Family

redline

C2

185.215.113.69:15544

45.15.157.131:36457

62.204.41.141:24758

Attributes
  • auth_value

    971353143dce4409844e1f4f0f5f7af8

Extracted

Family

aurora

C2

37.220.87.13:8081

Extracted

Family

redline

Botnet

@Miroskati

C2

rllalasyeo.xyz:80

Attributes
  • auth_value

    384ebbf9bd4d7e80bf3269909b298f87

Targets

    • Target

      bef2253333e2663aa740460ede3ee25e.exe

    • Size

      29.0MB

    • MD5

      bef2253333e2663aa740460ede3ee25e

    • SHA1

      774d4ebdb884b4e32ffe7e36fa691aaaf5505f3c

    • SHA256

      d058305ddf083f58cb70b13eb26b49c029b8f2eb329c98c1574b2489f6a44809

    • SHA512

      160cb1e4b383be3f0809bc79a2d12176f146510070b4ca5c23db0344c571115c0fd2146cfdb72ceea92abe840c02070cd8f08581211acb6b0eb39ea92222d6cb

    • SSDEEP

      786432:QuPxiY4bJfwP+v53za5RuHKhPzMYd36qfd3a:DpiTbJYPIlnqBMyBa

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Aurora

      Aurora is a crypto wallet stealer written in Golang.

    • LimeRAT

      Simple yet powerful RAT for Windows machines written in .NET.

    • Modifies security service

    • RedLine

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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Enumerates VirtualBox registry keys

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

    • Looks for VirtualBox Guest Additions in registry

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Uses the VBS compiler for execution

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks