Overview

overview

10

Static

static

10

fba348d623...8e.exe

windows10-2004-x64

10

fba348d623...8e.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    54s
  • max time network
    57s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/04/2025, 19:18

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General

  • Target

    fba348d623f8cd0af63315a97ff67a51e0af864fb07c02824cbd83dafb173f8e.exe

  • Size

    47KB

  • MD5

    8a157f3fc0ea3d6b8644b918b610947e

  • SHA1

    095c33d5b86fd75d76619cffd6259badb5d1b03e

  • SHA256

    fba348d623f8cd0af63315a97ff67a51e0af864fb07c02824cbd83dafb173f8e

  • SHA512

    f2584732363237d6e409c6f0c0c7f038c67df2ae31df92bbed3431afa60495955b896d8a5bf7a913c876e5c7446b9fedab70d040832b82b32dbc5d43c461fc38

  • SSDEEP

    768:6uW81Towx/9WU9Vt+Xmo2qzgTRVTzuuSPIG5RorYKN8n5b0bK78dpNXbpl3rePD+:6uW81Toq7C2fFz97kRaYKN3bK4dfXaF8

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

5.tcp.eu.ngrok.io:15310

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    Valorantbuild.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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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\fba348d623f8cd0af63315a97ff67a51e0af864fb07c02824cbd83dafb173f8e.exe
    "C:\Users\Admin\AppData\Local\Temp\fba348d623f8cd0af63315a97ff67a51e0af864fb07c02824cbd83dafb173f8e.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Valorantbuild" /tr '"C:\Users\Admin\AppData\Roaming\Valorantbuild.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Valorantbuild" /tr '"C:\Users\Admin\AppData\Roaming\Valorantbuild.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4564
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBA18.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4456
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4592
      • C:\Users\Admin\AppData\Roaming\Valorantbuild.exe
        "C:\Users\Admin\AppData\Roaming\Valorantbuild.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4888

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBA18.tmp.bat
    Filesize

    157B

    MD5

    425e1b7b9d64f3812284a0c407d78947

    SHA1

    476e65459255b359cce46ad76ba67c71da3678e8

    SHA256

    39509bbbdcbf49df70da4bc7ba781726c68985bfa32c96835d8358077f39a491

    SHA512

    2cbfe6c82ef3efb32b2c0239359a8be939c235efea2550a6c12fb5bc0c3181b74515c7bdd2d6b3e26aeb46a25a0dc4c158fb96f289ec0781ee4a44e3ede63e9f

    Download Submit

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

    47KB

    MD5

    8a157f3fc0ea3d6b8644b918b610947e

    SHA1

    095c33d5b86fd75d76619cffd6259badb5d1b03e

    SHA256

    fba348d623f8cd0af63315a97ff67a51e0af864fb07c02824cbd83dafb173f8e

    SHA512

    f2584732363237d6e409c6f0c0c7f038c67df2ae31df92bbed3431afa60495955b896d8a5bf7a913c876e5c7446b9fedab70d040832b82b32dbc5d43c461fc38

    Download Submit

  • memory/4820-0-0x000000007460E000-0x000000007460F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4820-1-0x00000000009E0000-0x00000000009F2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4820-2-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4820-3-0x0000000005430000-0x00000000054CC000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4820-8-0x0000000074600000-0x0000000074DB0000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4888-13-0x0000000074570000-0x0000000074D20000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4888-14-0x0000000074570000-0x0000000074D20000-memory.dmp

    Filesize

    7.7MB

    Download