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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/07/2024, 14:38

General

  • Target

    anarchia.exe

  • Size

    63KB

  • MD5

    0b2ea56da9323d28eb13700901a3d821

  • SHA1

    beac98a0e292050ce6fda1efdb550342861427dd

  • SHA256

    9b0ceae770fefa240406c89e24ad6468397db6c3105ea4bd800e433fd608cbd3

  • SHA512

    a26783b1ae66fa56a4162dc893ec5865e009e1cd94862edb2933099fd81e70883ef2aa4a6de5d876c73670df31abd899d3682a47fcc458b9995ea5d0e9b71ab8

  • SSDEEP

    1536:xRRQOw8kwch5bUbWh9aiEABuEdpqKmY7:xA18k3bUbW6eGz

Score
10/10

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

185.254.97.15:2024

Attributes
  • delay

    1

  • install

    true

  • install_file

    cwel.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
  • 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
  • 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 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\anarchia.exe
    "C:\Users\Admin\AppData\Local\Temp\anarchia.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cwel" /tr '"C:\Users\Admin\AppData\Roaming\cwel.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "cwel" /tr '"C:\Users\Admin\AppData\Roaming\cwel.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3176
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4EAC.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3952
      • C:\Users\Admin\AppData\Roaming\cwel.exe
        "C:\Users\Admin\AppData\Roaming\cwel.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4EAC.tmp.bat

    Filesize

    148B

    MD5

    cf86a6abb05c30050fe2084d653694d0

    SHA1

    bc80a92eeee51f8945214d771330cd4b3018e22f

    SHA256

    b1eb1e750dcb5a20f93b32aecc6c00aca089484d47be06be936a08dcd9209306

    SHA512

    3731bb4b8490b25ab3359ece0683c7e6867bb99012ca27a8964b5a87765bfed6cdb59561c45f8c9eac249e6448e31817986c857a34c62f3f7520f9105ffd655f

  • C:\Users\Admin\AppData\Roaming\cwel.exe

    Filesize

    63KB

    MD5

    0b2ea56da9323d28eb13700901a3d821

    SHA1

    beac98a0e292050ce6fda1efdb550342861427dd

    SHA256

    9b0ceae770fefa240406c89e24ad6468397db6c3105ea4bd800e433fd608cbd3

    SHA512

    a26783b1ae66fa56a4162dc893ec5865e009e1cd94862edb2933099fd81e70883ef2aa4a6de5d876c73670df31abd899d3682a47fcc458b9995ea5d0e9b71ab8

  • memory/1520-0-0x0000000000F50000-0x0000000000F66000-memory.dmp

    Filesize

    88KB

  • memory/1520-1-0x00007FF9181B3000-0x00007FF9181B5000-memory.dmp

    Filesize

    8KB

  • memory/1520-2-0x00007FF9181B0000-0x00007FF918C71000-memory.dmp

    Filesize

    10.8MB

  • memory/1520-7-0x00007FF9181B0000-0x00007FF918C71000-memory.dmp

    Filesize

    10.8MB

  • memory/2512-14-0x000000001BCD0000-0x000000001BD46000-memory.dmp

    Filesize

    472KB

  • memory/2512-15-0x000000001AFD0000-0x000000001B004000-memory.dmp

    Filesize

    208KB

  • memory/2512-16-0x000000001BC50000-0x000000001BC6E000-memory.dmp

    Filesize

    120KB

  • memory/2512-17-0x000000001BC80000-0x000000001BCB4000-memory.dmp

    Filesize

    208KB