General

  • Target

    12f82bd59a4b2273510a7a2c01b82f6b.exe

  • Size

    7.2MB

  • Sample

    230131-j1j2vahc6s

  • MD5

    12f82bd59a4b2273510a7a2c01b82f6b

  • SHA1

    be9c13bf17fe304597729fc71f3eafff02e02a44

  • SHA256

    7200e2fdf4dc5ccbdf12e1cdd109d878f0e0909f3530769376c7f154385633d4

  • SHA512

    d8bf6d52b29d82805d750539122110c9614263d088665adbf7ba2d932245425593ecd7b8378183bbe31fbc4f198075edf0f292473f925286f6eaf6c7e3ff725f

  • SSDEEP

    98304:os1DgtKt0M154pX1M0gF9OtfXJroEBV5FL0BsS4HJG+V5Os+vE9zK2SCmBh:gk54fmotPxoI++nOv8ICmBh

Malware Config

Targets

    • Target

      12f82bd59a4b2273510a7a2c01b82f6b.exe

    • Size

      7.2MB

    • MD5

      12f82bd59a4b2273510a7a2c01b82f6b

    • SHA1

      be9c13bf17fe304597729fc71f3eafff02e02a44

    • SHA256

      7200e2fdf4dc5ccbdf12e1cdd109d878f0e0909f3530769376c7f154385633d4

    • SHA512

      d8bf6d52b29d82805d750539122110c9614263d088665adbf7ba2d932245425593ecd7b8378183bbe31fbc4f198075edf0f292473f925286f6eaf6c7e3ff725f

    • SSDEEP

      98304:os1DgtKt0M154pX1M0gF9OtfXJroEBV5FL0BsS4HJG+V5Os+vE9zK2SCmBh:gk54fmotPxoI++nOv8ICmBh

    • Detect PureCrypter injector

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • 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.

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

2
T1005

Tasks