Overview

overview

10

Static

static

10

3797bf6a25...82.exe

windows10-2004-x64

10

3797bf6a25...82.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    42s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250410-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/04/2025, 19:22

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General

  • Target

    3797bf6a25ea42774008d2879b53875e2a8c1d1423dff8b7290a17780b93c482.exe

  • Size

    44KB

  • MD5

    6866a6b356c2df2bf347ffd2ac4305ca

  • SHA1

    29d9deefbf03a374038d171983c95db84a3cba78

  • SHA256

    3797bf6a25ea42774008d2879b53875e2a8c1d1423dff8b7290a17780b93c482

  • SHA512

    eb44c4b40a8f24b7da45093e3b0f020abcc42a4dac812529fd2ea559e2bb58c4b41467ce557511779c535d71816963f183dfe6efe2646852a050d53421ced4f7

  • SSDEEP

    768:zioSUQ4tbx4jLxx2jBHUyYb7qoK2TazjbzgX3iMIfd0wxi6hUHil:zJ24txjJUyWHK2u3bsXSMIF0wU0UHil

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

10.81.36.45:6606

Mutex

LfKMo3uFrnKq

Attributes
  • delay

    3

  • install

    true

  • install_file

    test.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Async RAT payload 1 IoCs
    rat
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3797bf6a25ea42774008d2879b53875e2a8c1d1423dff8b7290a17780b93c482.exe
    "C:\Users\Admin\AppData\Local\Temp\3797bf6a25ea42774008d2879b53875e2a8c1d1423dff8b7290a17780b93c482.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "test" /tr '"C:\Users\Admin\AppData\Roaming\test.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4712
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "test" /tr '"C:\Users\Admin\AppData\Roaming\test.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4624
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp801D.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4520
      • C:\Users\Admin\AppData\Roaming\test.exe
        "C:\Users\Admin\AppData\Roaming\test.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:884

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp801D.tmp.bat
    Filesize

    148B

    MD5

    f9267d934248de1d33c6bec9b220631a

    SHA1

    7d6743cb0f88b56326b21b7f72b3d8a082f8923e

    SHA256

    e64d47c2a69bcc146941187c6f714241d3aaa1d25535971c0be445c87d996278

    SHA512

    f012cc2dd70c44a1039ce3aaf532a74c947b2be1608fad5281af96b7518f7a55d0e9a9946e722e580d8454df73a3921c7d57182c1f7a4ea9ef8f81e297d235ff

    Download Submit

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

    44KB

    MD5

    6866a6b356c2df2bf347ffd2ac4305ca

    SHA1

    29d9deefbf03a374038d171983c95db84a3cba78

    SHA256

    3797bf6a25ea42774008d2879b53875e2a8c1d1423dff8b7290a17780b93c482

    SHA512

    eb44c4b40a8f24b7da45093e3b0f020abcc42a4dac812529fd2ea559e2bb58c4b41467ce557511779c535d71816963f183dfe6efe2646852a050d53421ced4f7

    Download Submit

  • memory/884-13-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/884-14-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5920-0-0x000000007477E000-0x000000007477F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5920-1-0x0000000000CC0000-0x0000000000CD2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/5920-2-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/5920-3-0x00000000056D0000-0x000000000576C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/5920-8-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB

    Download