Overview

overview

10

Static

static

10

71ad0a4082...d8.exe

windows7-x64

10

71ad0a4082...d8.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    128s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/12/2024, 02:41

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General

  • Target

    71ad0a40822aa8637e09f788efb4b8c11a151497f624947af9da9cb03bd8bbd8.exe

  • Size

    48KB

  • MD5

    6cf60ceb94a75a9fd3ef42ef53cecd12

  • SHA1

    21e27216f1cbc2f707e922e0238a21aecae5b0fd

  • SHA256

    71ad0a40822aa8637e09f788efb4b8c11a151497f624947af9da9cb03bd8bbd8

  • SHA512

    9a2c23a7bcd6df0e44ccd1b4f43c9ff64640143974ff00381979f80101270c66b386c55709f4392638e51abef47debd40e1605e78b213bef0ba59b4d49b22236

  • SSDEEP

    768:qu6XdTvER+SWUk6P4mo2qbUiZtX1uSK7PIk+BeNJN6U0br+UZToANniLlU09kDTU:qu6XdTv2S2K1yEk+yJCbr+mBipU09Wd0

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

185.223.30.86:8808

Mutex

GfuQDRCNZd5L

Attributes
  • delay

    9

  • install

    true

  • install_file

    sync.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71ad0a40822aa8637e09f788efb4b8c11a151497f624947af9da9cb03bd8bbd8.exe
    "C:\Users\Admin\AppData\Local\Temp\71ad0a40822aa8637e09f788efb4b8c11a151497f624947af9da9cb03bd8bbd8.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5072
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "sync" /tr '"C:\Users\Admin\AppData\Roaming\sync.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "sync" /tr '"C:\Users\Admin\AppData\Roaming\sync.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2568
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCFC3.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3504
      • C:\Users\Admin\AppData\Roaming\sync.exe
        "C:\Users\Admin\AppData\Roaming\sync.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1448

Network

        MITRE ATT&CK Enterprise v15

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpCFC3.tmp.bat
          Filesize

          148B

          MD5

          04fc592ccd62227ef4a9fa1d57410a36

          SHA1

          9ee888cf32cdcf22b637a9c03fc1a63504a64d86

          SHA256

          572f94660b0adf11278dbd9a2e3eeef4a6e23704d17a516b019111bffc546931

          SHA512

          8d900ff35d7184e04aadbfabb7b11d8844b7b9ccc27aec2d9db63bd5138bda74265eb84ae476a00e7e6c6d717f6909df04f1d0b30f326c04d88361e54198b9cb

          Download Submit

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

          48KB

          MD5

          6cf60ceb94a75a9fd3ef42ef53cecd12

          SHA1

          21e27216f1cbc2f707e922e0238a21aecae5b0fd

          SHA256

          71ad0a40822aa8637e09f788efb4b8c11a151497f624947af9da9cb03bd8bbd8

          SHA512

          9a2c23a7bcd6df0e44ccd1b4f43c9ff64640143974ff00381979f80101270c66b386c55709f4392638e51abef47debd40e1605e78b213bef0ba59b4d49b22236

          Download Submit

        • memory/1448-15-0x0000000074EB0000-0x0000000075660000-memory.dmp

          Filesize

          7.7MB

          Download

        • memory/1448-16-0x0000000074EB0000-0x0000000075660000-memory.dmp

          Filesize

          7.7MB

          Download

        • memory/5072-0-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

          Filesize

          4KB

          Download

        • memory/5072-1-0x0000000000810000-0x0000000000822000-memory.dmp

          Filesize

          72KB

          Download

        • memory/5072-2-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

          Filesize

          4KB

          Download

        • memory/5072-3-0x0000000074F60000-0x0000000075710000-memory.dmp

          Filesize

          7.7MB

          Download

        • memory/5072-4-0x0000000005200000-0x0000000005266000-memory.dmp

          Filesize

          408KB

          Download

        • memory/5072-5-0x0000000005660000-0x00000000056FC000-memory.dmp

          Filesize

          624KB

          Download

        • memory/5072-10-0x0000000074F60000-0x0000000075710000-memory.dmp

          Filesize

          7.7MB

          Download