Overview

overview

10

Static

static

7

mixshop_20...28.exe

windows7_x64

10

mixshop_20...28.exe

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    27-12-2021 09:38

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General

  • Target

    mixshop_20211227-103528.exe

  • Size

    2.7MB

  • MD5

    5289cac36220c353af14dc3f14faf91a

  • SHA1

    5080eb50ad81a2026d0e155af6149b66b21d2777

  • SHA256

    0f73f9885dc262aa08acb765fdd226d779265e017ca605da15cb887a2b4b9899

  • SHA512

    44225c2abded6d592b5aa33d5dd81b1ba638dd29237ebc6f781ca3d032cb272f36da0447230d32f556556ef201bd27433a48a289c5a65ed9cc49661b20e98d9c

Score
10/10
cryptbotevasionspywarestealerthemidatrojan

Malware Config

Extracted

Family

cryptbot

C2

hevbaw12.top

morgki01.top
Attributes
  • payload_url

    http://kyvihm01.top/download.php?file=brunei.exe

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.

  • Deletes itself 1 IoCs
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • 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.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mixshop_20211227-103528.exe
    "C:\Users\Admin\AppData\Local\Temp\mixshop_20211227-103528.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\fdmAmeaMffMOs & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\mixshop_20211227-103528.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:656
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:1228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/656-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1228-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1540-54-0x0000000075891000-0x0000000075893000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1540-55-0x0000000000180000-0x0000000000874000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/1540-56-0x0000000000180000-0x0000000000874000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/1540-57-0x0000000000180000-0x0000000000874000-memory.dmp
    Filesize

    7.0MB

    Download
  • memory/1540-58-0x0000000000180000-0x0000000000874000-memory.dmp
    Filesize

    7.0MB

    Download