General

  • Target

    919db35f2bf4dad6dd23e16b68dbb205.exe

  • Size

    4.0MB

  • Sample

    240624-2wntcazcnq

  • MD5

    919db35f2bf4dad6dd23e16b68dbb205

  • SHA1

    97a493eb8ebcac4fa8f61c357365d443c72e40dc

  • SHA256

    99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f

  • SHA512

    efa3e69c8c3e6b1af82ae4a6c89412fbcc4d21eaf61349c235810fef4790b5b6f7373c1ca0adb2ca7efcd2ea61635968f9d2237802422cf6046039aab27fa05e

  • SSDEEP

    98304:z8Ho3wEF+ZSxV4CQrRZIfIM8R6nhYufLX6CL2VeUs:z8IqRSxi6dLqi

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Targets

    • Target

      919db35f2bf4dad6dd23e16b68dbb205.exe

    • Size

      4.0MB

    • MD5

      919db35f2bf4dad6dd23e16b68dbb205

    • SHA1

      97a493eb8ebcac4fa8f61c357365d443c72e40dc

    • SHA256

      99dfe8a4454f28c944e3c749150aecdaa97e19bcc5a9cf644a509b7eb1d4e50f

    • SHA512

      efa3e69c8c3e6b1af82ae4a6c89412fbcc4d21eaf61349c235810fef4790b5b6f7373c1ca0adb2ca7efcd2ea61635968f9d2237802422cf6046039aab27fa05e

    • SSDEEP

      98304:z8Ho3wEF+ZSxV4CQrRZIfIM8R6nhYufLX6CL2VeUs:z8IqRSxi6dLqi

    • Stealc

      Stealc is an infostealer written in C++.

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

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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

    • 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

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks