Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-02-2024 16:47

General

  • Target

    a245d0258d39cc1a837916c877fa3731.exe

  • Size

    1.8MB

  • MD5

    a245d0258d39cc1a837916c877fa3731

  • SHA1

    64113ba52fca1c6779c7dddc8755e2adab7f5362

  • SHA256

    97937a2b707c22b090a3a836676f086d5504f7b6bb19e42252cc4f9459b23f83

  • SHA512

    c8535fd795d573f41f68507b509ddb2a916037afe805bddf6c1b3b00c4dd718598f068fc5acfb0c3a3eabd3281b4e40338b414e1d5b9ce955950add811a9e914

  • SSDEEP

    49152:BZsSLEG54bSpIgamJhoJsNY221Ydo4BLgSe4GY23:BZslS4SamJ2JsC23d7he

Malware Config

Extracted

Family

redline

Botnet

1

C2

65.21.162.231:8696

Signatures

  • RedLine

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

  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a245d0258d39cc1a837916c877fa3731.exe
    "C:\Users\Admin\AppData\Local\Temp\a245d0258d39cc1a837916c877fa3731.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4448

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4448-0-0x00000000003E0000-0x00000000008A4000-memory.dmp
    Filesize

    4.8MB

  • memory/4448-1-0x00000000776B4000-0x00000000776B6000-memory.dmp
    Filesize

    8KB

  • memory/4448-4-0x00000000744B0000-0x0000000074C60000-memory.dmp
    Filesize

    7.7MB

  • memory/4448-3-0x00000000003E0000-0x00000000008A4000-memory.dmp
    Filesize

    4.8MB

  • memory/4448-5-0x00000000003E0000-0x00000000008A4000-memory.dmp
    Filesize

    4.8MB

  • memory/4448-6-0x0000000005870000-0x0000000005E88000-memory.dmp
    Filesize

    6.1MB

  • memory/4448-7-0x00000000052F0000-0x0000000005302000-memory.dmp
    Filesize

    72KB

  • memory/4448-8-0x0000000005350000-0x000000000538C000-memory.dmp
    Filesize

    240KB

  • memory/4448-9-0x0000000005520000-0x0000000005530000-memory.dmp
    Filesize

    64KB

  • memory/4448-10-0x0000000005390000-0x00000000053DC000-memory.dmp
    Filesize

    304KB

  • memory/4448-11-0x0000000005640000-0x000000000574A000-memory.dmp
    Filesize

    1.0MB

  • memory/4448-13-0x00000000003E0000-0x00000000008A4000-memory.dmp
    Filesize

    4.8MB

  • memory/4448-15-0x00000000744B0000-0x0000000074C60000-memory.dmp
    Filesize

    7.7MB

  • memory/4448-16-0x0000000005520000-0x0000000005530000-memory.dmp
    Filesize

    64KB