Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 21:46

General

  • Target

    419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe

  • Size

    556KB

  • MD5

    632fcbfdd3e602712905071c5a178e6d

  • SHA1

    350fd5a29c11bf2244f94465ed2e82ce71a72ca4

  • SHA256

    419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f

  • SHA512

    b0ea0cba1a9e6e5398e363d2558f0105288b48af2fa40678ce416bd07b2a021427c85af487734288f9e5a9185a1faeb3f2e67ae1a199e9686069333a07458ab4

  • SSDEEP

    12288:ndBhrOiY7fNzGxb2w0T1Qhg8HM+M71ao7DVxZNywjzS:ndulzGow0ihhM71aYj3TS

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

ronymahmoud.casacam.net:6606

ronymahmoud.casacam.net:7707

ronymahmoud.casacam.net:8808

sk.servemp3.com:6606

sk.servemp3.com:7707

sk.servemp3.com:8808

Mutex

fpfvkdzpfziibqk

Attributes
  • delay

    1

  • install

    false

  • install_file

    miccrosofte.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
    "C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2676
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KkjEJBLkYcb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KkjEJBLkYcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE64A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2600
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabF308.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\tmpE64A.tmp

    Filesize

    1KB

    MD5

    78dbea1eeee6c16d0d2e10bccba28870

    SHA1

    f947ccd6c839a995e36f511d4df78f719683b175

    SHA256

    2af9fdcc7b3f74fa7d361499ad9cb7ca9726f62fdfd9c7bb525eef06801bf1ca

    SHA512

    5349930d62a47704908f16d7638fad13898233a0f4224c5eecc5c237600e69330bd2f4b154a549d2f04fc935899b4ad2cddd4e2a4c34f7443cfc0de37a696428

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\JYA0T1830ILP9PCJQJLZ.temp

    Filesize

    7KB

    MD5

    99ed4716cd593ad3064b83796ec3eaa5

    SHA1

    823fa270dd49b74ad116d541d4ca3adb87d1b91f

    SHA256

    fdb576a59ea65e4d7f2ba696b10051d147addf20ddcd665696d7015e0d7b401a

    SHA512

    d2399343fe0827637a7364c50db04dfadd51fc87c1499c1da3ae2f4924f274847b47b1f38c94795b962bce39e7608222d3094d4084f1237a8fd7aa2c31eadab2

  • memory/628-4-0x000000007442E000-0x000000007442F000-memory.dmp

    Filesize

    4KB

  • memory/628-31-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/628-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/628-6-0x0000000004CD0000-0x0000000004D24000-memory.dmp

    Filesize

    336KB

  • memory/628-3-0x00000000002A0000-0x00000000002B0000-memory.dmp

    Filesize

    64KB

  • memory/628-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

    Filesize

    6.9MB

  • memory/628-1-0x0000000000110000-0x00000000001A0000-memory.dmp

    Filesize

    576KB

  • memory/628-0-0x000000007442E000-0x000000007442F000-memory.dmp

    Filesize

    4KB

  • memory/2524-23-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-25-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-21-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-29-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-30-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-28-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2524-19-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB