Analysis

  • max time kernel
    130s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    16-04-2024 23:10

General

  • Target

    Svchost.exe

  • Size

    48KB

  • MD5

    2c01d39807db97c023bed5a537afc7d1

  • SHA1

    fb5cae1a4c68278631803413a34182141b85c4a2

  • SHA256

    3f5d4db207164b474b8db3b278f7d9646145181a8211e6c851f1a40aec05a9c4

  • SHA512

    367256dd718596de7b89b0a910a96194dd7514eb83eb8670dea83326af63564dc1e9952142903203e2df876531ea034921c0e82616f7836f0125b8e3026744f7

  • SSDEEP

    768:KuwhFTAY3IQWUe9jqmo2qLfRjDp0pCFUUgPIPJnPCZ01h0bqmHZIUmTT6FkHZBcG:KuwhFTA4/2c5DSC/FPJPCZJbqiy/H2kd

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

report-dust.gl.at.ply.gg:28329

report-dust.gl.at.ply.gg:8188

Mutex

9VMpESMh922h

Attributes
  • delay

    3

  • install

    true

  • install_file

    Svchost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Svchost.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2768
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Svchost" /tr '"C:\Users\Admin\AppData\Roaming\Svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2888
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Svchost" /tr '"C:\Users\Admin\AppData\Roaming\Svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2600
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2B16.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2932
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2604
      • C:\Users\Admin\AppData\Roaming\Svchost.exe
        "C:\Users\Admin\AppData\Roaming\Svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2B16.tmp.bat

    Filesize

    151B

    MD5

    784b474e86b57a6bb8f94720762a716d

    SHA1

    133b7be4cac95a9a6f191dff492933fd478e53af

    SHA256

    bb3294443605215973837367c4934912c2f6d21e2be54caa7d38ca888d8af492

    SHA512

    8b8be5521a8f82942d44a03e57f0955516f4d9a77063a8e7a3cdf0dcb25444c6f1e27c3e1223f4eab8f6ac154a7055bd7f62b3dfa7ced4caebc14f09ae772356

  • \Users\Admin\AppData\Roaming\Svchost.exe

    Filesize

    48KB

    MD5

    2c01d39807db97c023bed5a537afc7d1

    SHA1

    fb5cae1a4c68278631803413a34182141b85c4a2

    SHA256

    3f5d4db207164b474b8db3b278f7d9646145181a8211e6c851f1a40aec05a9c4

    SHA512

    367256dd718596de7b89b0a910a96194dd7514eb83eb8670dea83326af63564dc1e9952142903203e2df876531ea034921c0e82616f7836f0125b8e3026744f7

  • memory/2552-16-0x0000000000140000-0x0000000000152000-memory.dmp

    Filesize

    72KB

  • memory/2552-17-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2552-18-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

    Filesize

    256KB

  • memory/2552-19-0x00000000748C0000-0x0000000074FAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2552-20-0x0000000004AB0000-0x0000000004AF0000-memory.dmp

    Filesize

    256KB

  • memory/2768-0-0x0000000000870000-0x0000000000882000-memory.dmp

    Filesize

    72KB

  • memory/2768-1-0x0000000074880000-0x0000000074F6E000-memory.dmp

    Filesize

    6.9MB

  • memory/2768-2-0x0000000004730000-0x0000000004770000-memory.dmp

    Filesize

    256KB

  • memory/2768-12-0x0000000074880000-0x0000000074F6E000-memory.dmp

    Filesize

    6.9MB