Overview

overview

10

Static

static

7

4d50f5e9e3...28.exe

windows7_x64

10

4d50f5e9e3...28.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    26-02-2022 08:23

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    4d50f5e9e375f71ff3ac1e806c60a728.exe

  • Size

    2.6MB

  • MD5

    4d50f5e9e375f71ff3ac1e806c60a728

  • SHA1

    76c1a682a7661810b8a608cc91c67bfdd15933b5

  • SHA256

    3678e658fdc8ef06809080bc210a3bce96157e1940fa9bd107759a448ff6b281

  • SHA512

    9c8f5c3b3273ee7c9eb42af195d9fad98c1b2bfc8ea592e8e5c147cae082bd0609a5f31e7257721f68494ed205a02b4227870cec4e6934fa7868d5eead0bb770

Score
10/10
cryptbotdiscoveryevasionspywarestealerthemidatrojan

Malware Config

Extracted

Family

cryptbot

C2



briymk62.top

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

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

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

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d50f5e9e375f71ff3ac1e806c60a728.exe
    "C:\Users\Admin\AppData\Local\Temp\4d50f5e9e375f71ff3ac1e806c60a728.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1428-133-0x0000000000360000-0x0000000000A49000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1428-134-0x0000000077054000-0x0000000077056000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1428-135-0x0000000000360000-0x0000000000A49000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1428-136-0x0000000000360000-0x0000000000A49000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1428-137-0x0000000000360000-0x0000000000A49000-memory.dmp

    Filesize

    6.9MB

    Download