Overview

overview

10

Static

static

10

bd5f793818...5c.exe

windows7-x64

10

bd5f793818...5c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 10:20

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General

  • Target

    bd5f79381890e67683071c76cd1bd8a13bfd52af104dd3c01824a39dbd85205c.exe

  • Size

    63KB

  • MD5

    b5da46ea47f9b458f4e11e08facc0b36

  • SHA1

    945e066d5a6a08c19b3024857b376927ea7c323f

  • SHA256

    bd5f79381890e67683071c76cd1bd8a13bfd52af104dd3c01824a39dbd85205c

  • SHA512

    77e04b67cf417e45631af8b0eec7f3e1969f61608fd41ddce27a4d3e04de77058fd928927acfbe7000259b4334ff8a61e05cef72ab5c9d54dd4caceb3e5141ff

  • SSDEEP

    1536:4hSjnRQ/kVJmV/KUf7v00PGbb2wy722GmdhpqKmY7:4hSjnRQ/kVC/KUjTGbb2h24az

Score
10/10
asyncratvenom clientsrat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

87.227.227.78:4782

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    coinbase.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd5f79381890e67683071c76cd1bd8a13bfd52af104dd3c01824a39dbd85205c.exe
    "C:\Users\Admin\AppData\Local\Temp\bd5f79381890e67683071c76cd1bd8a13bfd52af104dd3c01824a39dbd85205c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4428
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "coinbase" /tr '"C:\Users\Admin\AppData\Roaming\coinbase.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "coinbase" /tr '"C:\Users\Admin\AppData\Roaming\coinbase.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1304
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFB77.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3352
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4424
      • C:\Users\Admin\AppData\Roaming\coinbase.exe
        "C:\Users\Admin\AppData\Roaming\coinbase.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4336

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpFB77.tmp.bat
          Filesize

          152B

          MD5

          6a0c7badbed90b48599b55fdc38fc747

          SHA1

          a8cdf1e768c16a7bb0becc91e6f5183920c2a507

          SHA256

          a2b1531b128aa9da36b568c55d34535c2e5e6f4250a2ab977389503c66a2921b

          SHA512

          5e47dc46109e523904f8c7908d1e17f2d23d3f57ec24f1aeb17b35e27bc1c095904ed31e0ca718c0477fc8d4732af55f7b3ba11409d0f4656fe251838e621077

          Download Submit

        • C:\Users\Admin\AppData\Roaming\coinbase.exe
          Filesize

          63KB

          MD5

          b5da46ea47f9b458f4e11e08facc0b36

          SHA1

          945e066d5a6a08c19b3024857b376927ea7c323f

          SHA256

          bd5f79381890e67683071c76cd1bd8a13bfd52af104dd3c01824a39dbd85205c

          SHA512

          77e04b67cf417e45631af8b0eec7f3e1969f61608fd41ddce27a4d3e04de77058fd928927acfbe7000259b4334ff8a61e05cef72ab5c9d54dd4caceb3e5141ff

          Download Submit

        • memory/4428-0-0x00007FF901A03000-0x00007FF901A05000-memory.dmp

          Filesize

          8KB

          Download

        • memory/4428-1-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

          Filesize

          88KB

          Download

        • memory/4428-2-0x00007FF901A00000-0x00007FF9024C1000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4428-7-0x00007FF901A00000-0x00007FF9024C1000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4428-8-0x00007FF901A00000-0x00007FF9024C1000-memory.dmp

          Filesize

          10.8MB

          Download