General

  • Target

    bd034ca154769f1df2a8ceb60c204380.exe

  • Size

    1.7MB

  • Sample

    240624-l17t1szelk

  • MD5

    bd034ca154769f1df2a8ceb60c204380

  • SHA1

    d8d6680f9cc9728124785426422863e11804bad2

  • SHA256

    c4c0310bc779bb4ba051be5fe124c783a101e9d0ba03e530292e69ab00cd9cea

  • SHA512

    c128f3ba3fe425ea35fc7a20d1f19e8c8f946155f1d14f63d8a8234a1508cc5d7c9926581aa516d9f04e79bdcb625533baf5d7ec0e125d3d1beb4d75d1976bc9

  • SSDEEP

    49152:WiGjOhbTN00JS3M/Hk7C7x1LckfvGYrkQ9E:Wi5fS3M/Hk7CXLc2GYwQG

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Targets

    • Target

      bd034ca154769f1df2a8ceb60c204380.exe

    • Size

      1.7MB

    • MD5

      bd034ca154769f1df2a8ceb60c204380

    • SHA1

      d8d6680f9cc9728124785426422863e11804bad2

    • SHA256

      c4c0310bc779bb4ba051be5fe124c783a101e9d0ba03e530292e69ab00cd9cea

    • SHA512

      c128f3ba3fe425ea35fc7a20d1f19e8c8f946155f1d14f63d8a8234a1508cc5d7c9926581aa516d9f04e79bdcb625533baf5d7ec0e125d3d1beb4d75d1976bc9

    • SSDEEP

      49152:WiGjOhbTN00JS3M/Hk7C7x1LckfvGYrkQ9E:Wi5fS3M/Hk7CXLc2GYwQG

    • 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.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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.

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks