Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2024 05:23

General

  • Target

    89c1d2a863f9df48d8088ae22405b6e21b2a1ccaf92a6ce108a215ee378f7e2a.exe

  • Size

    82KB

  • MD5

    9e50c2f273cf6cf7b3041415003cf33a

  • SHA1

    8f0d85f92de5b51a204f055345eb21e9a922f66d

  • SHA256

    89c1d2a863f9df48d8088ae22405b6e21b2a1ccaf92a6ce108a215ee378f7e2a

  • SHA512

    c38cdcf80556f58244860b135b4b1f72a5e3aa719159da735519bb7276058a3ecdfb6722eb947e0ee350b48809b8a97ac1663841e4d09160fe61efeb200926ef

  • SSDEEP

    1536:l7lMWSxtyCiJHzb1rP8ty7kJ/3DBIYGUHerbqYwehpqKmY7:tlMWSxtNozb1o6YKYWweaz

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

PortHack 1.0.0

Botnet

Default

C2

127.0.0.1:8848

127.0.0.1:46056

bereit.ddns.net:8848

bereit.ddns.net:46056

Mutex

DcRatMutex

Attributes
  • delay

    1

  • install

    true

  • install_file

    excle.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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\89c1d2a863f9df48d8088ae22405b6e21b2a1ccaf92a6ce108a215ee378f7e2a.exe
    "C:\Users\Admin\AppData\Local\Temp\89c1d2a863f9df48d8088ae22405b6e21b2a1ccaf92a6ce108a215ee378f7e2a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "excle" /tr '"C:\Users\Admin\AppData\Roaming\excle.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3240
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "excle" /tr '"C:\Users\Admin\AppData\Roaming\excle.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1868
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6A81.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2012
      • C:\Users\Admin\AppData\Roaming\excle.exe
        "C:\Users\Admin\AppData\Roaming\excle.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6A81.tmp.bat

    Filesize

    149B

    MD5

    dc8ed2226a36d233ece29b7f39f8346c

    SHA1

    33d51634724e3e96dcfdcd91a6e4d98759fd2c28

    SHA256

    51789fb2e988f056d9b5afe79a930e65fcd7cd3a891bf959dd316a231c91e592

    SHA512

    8ff88f8d81121fda5d8291b20142ebe9428bd62f06e6f916fd66b1ec840473baf927f8f4b4b8bb8bcea5d9d2201461c6e7672417fa48036c5ddf671e8cc90f89

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

    Filesize

    82KB

    MD5

    9e50c2f273cf6cf7b3041415003cf33a

    SHA1

    8f0d85f92de5b51a204f055345eb21e9a922f66d

    SHA256

    89c1d2a863f9df48d8088ae22405b6e21b2a1ccaf92a6ce108a215ee378f7e2a

    SHA512

    c38cdcf80556f58244860b135b4b1f72a5e3aa719159da735519bb7276058a3ecdfb6722eb947e0ee350b48809b8a97ac1663841e4d09160fe61efeb200926ef

  • memory/1112-0-0x00007FF8FC723000-0x00007FF8FC725000-memory.dmp

    Filesize

    8KB

  • memory/1112-1-0x00000248B7A70000-0x00000248B7A8A000-memory.dmp

    Filesize

    104KB

  • memory/1112-2-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

    Filesize

    10.8MB

  • memory/1112-7-0x00007FF8FC720000-0x00007FF8FD1E1000-memory.dmp

    Filesize

    10.8MB