Overview

overview

10

Static

static

10

search.exe

windows10-1703-x64

10

Analysis

  • max time kernel
    58s
  • max time network
    60s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08-10-2024 15:42

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General

  • Target

    search.exe

  • Size

    63KB

  • MD5

    4a3d7bd2084b48024bf8f459b10aa913

  • SHA1

    ed47940c8e00f846e0656bd95ca14ddd8d157ba0

  • SHA256

    7c15fa68e1ae83f81c98a2c616753777ccd720a8a2a1adda490e08be9369a3c8

  • SHA512

    94e00110aa23f713e099039b027d01e7ea1c5521b4f9b6563cebf537eafb226a3aa840d7f3f4ec08872ec098bd57567c3fd8c3694ea62468139ae84ee5cc5b35

  • SSDEEP

    768:RdGnVhwdjndk78TQC8A+XiuazcBRL5JTk1+T4KSBGHmDbD/ph0oXkDkhgOSuAdph:mnSdsNdSJYUbdh9kcIuAdpqKmY7

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

natural-familiar.gl.at.ply.gg:65030

Attributes
  • delay

    1

  • install

    true

  • install_file

    search.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
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • 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 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 35 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\search.exe
    "C:\Users\Admin\AppData\Local\Temp\search.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3692
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "search" /tr '"C:\Users\Admin\AppData\Roaming\search.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "search" /tr '"C:\Users\Admin\AppData\Roaming\search.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2428
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6CC4.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3660
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3524
      • C:\Users\Admin\AppData\Roaming\search.exe
        "C:\Users\Admin\AppData\Roaming\search.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1404
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /0
    1⤵
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\search.exe.log
    Filesize

    425B

    MD5

    2ead231ce66abe78de975d1b05d590a4

    SHA1

    c269fde7c1d36005928089b0689cecd0a2bc1e1c

    SHA256

    71879c54d43afa910afbabfc59235151a78b42049f79f152773fbfca74b2f294

    SHA512

    038480a37fe4227fe04f7323fea842037df486901aab0529145046718ffb48c99e62107f534857ca0023dbb5b72be778bc4911ae2873c01ad826865c44537fdd

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmp6CC4.tmp.bat
    Filesize

    150B

    MD5

    54960a3924b0c503e383f844933b9059

    SHA1

    d9a833eb79582a0c2478c221acc8ba7f7b2d61ad

    SHA256

    7503595f41a0ad59bf0c06ce163e5965220116f3db2925bd143a98446612137d

    SHA512

    17913f4fcaf82b695ae131197057932c58390b1161c2bee40c3e14a8c41590015b247640f66e144d34f02d5ba4c2681b608ae85139dcdc29158c0271f604646d

    Download Submit

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

    63KB

    MD5

    4a3d7bd2084b48024bf8f459b10aa913

    SHA1

    ed47940c8e00f846e0656bd95ca14ddd8d157ba0

    SHA256

    7c15fa68e1ae83f81c98a2c616753777ccd720a8a2a1adda490e08be9369a3c8

    SHA512

    94e00110aa23f713e099039b027d01e7ea1c5521b4f9b6563cebf537eafb226a3aa840d7f3f4ec08872ec098bd57567c3fd8c3694ea62468139ae84ee5cc5b35

    Download Submit

  • memory/3692-1-0x00000000003B0000-0x00000000003C6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3692-0-0x00007FFC94BD3000-0x00007FFC94BD4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3692-2-0x00007FFC94BD0000-0x00007FFC955BC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/3692-3-0x00007FFC94BD0000-0x00007FFC955BC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/3692-8-0x00007FFC94BD0000-0x00007FFC955BC000-memory.dmp

    Filesize

    9.9MB

    Download