Overview

overview

10

Static

static

938483_293...df.exe

windows7_x64

10

938483_293...df.exe

windows10_x64

10

Analysis

  • max time kernel
    122s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    25-01-2022 09:18

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General

  • Target

    938483_2930_8483_invoice_3473_november_2021.pdf.exe

  • Size

    1.2MB

  • MD5

    668cbb9d01d55ca7ec4e1a41d498ea34

  • SHA1

    ee3b32d73904bc7111524611b94b058d7cabbdaa

  • SHA256

    0e7d9b0985b55dbf3c9978c57f6cf0c76e36751517ad6b224cdee2fe221cc9ca

  • SHA512

    5ef8541cfc6857abbb30a0a5bcc50ec7e14f0750e9695fcb4b011675cbf29fa0cd99cafc9ccb1e47d9337088da159e0d8bce7058c578bdc6171646bc9f75ca8a

Score
10/10
asyncratdefaultevasionrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

exportmunic007.duckdns.org:6606

exportmunic007.duckdns.org:7707

exportmunic007.duckdns.org:8808
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • Async RAT payload 4 IoCs
    rat
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\938483_2930_8483_invoice_3473_november_2021.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\938483_2930_8483_invoice_3473_november_2021.pdf.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ComSvcConfig.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ComSvcConfig.exe"
      2⤵
        PID:1228
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1784

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    2
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/1084-55-0x0000000000C70000-0x0000000000DA4000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/1084-56-0x0000000004DB0000-0x0000000004DB1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1084-57-0x00000000009C0000-0x0000000000A64000-memory.dmp
      Filesize

      656KB

      Download
    • memory/1084-58-0x0000000000550000-0x0000000000590000-memory.dmp
      Filesize

      256KB

      Download
    • memory/1784-59-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-60-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-61-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-62-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-63-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-64-0x0000000000400000-0x0000000000424000-memory.dmp
      Filesize

      144KB

      Download
    • memory/1784-65-0x00000000763B1000-0x00000000763B3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1784-66-0x00000000004D0000-0x00000000004D1000-memory.dmp
      Filesize

      4KB

      Download