Overview

overview

10

Static

static

10

119665A19A...AA.exe

windows7-x64

10

119665A19A...AA.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2023 19:02

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General

  • Target

    119665A19AE82240EC86094AA.exe

  • Size

    48KB

  • MD5

    47317851e54b34394181c9d05b936256

  • SHA1

    4da8b0fcda1836d903d0c210ae8c27be27d8383e

  • SHA256

    119665a19ae82240ec86094aa58935708e081dea15b03da7574f342a0e96d153

  • SHA512

    550aaf26d3722718a4608d38ef124f09486a2b44ecc5d919b21fae32176d03143eb166526d505713d32e1d8abfc17c594317b9d2b195f863aec87dd36db5d418

  • SSDEEP

    768:Eov5MNNmnO4Gl2CNm/u2ZHCLkjbsgr3iifkEH5zn+FSJWClZJ2tYcFmVc6K:Eov5MNQruyckbjrSmRrJKmVcl

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

seznam.zapto.org:6606

seznam.zapto.org:7707

seznam.zapto.org:8808

milla.publicvm.com:6606

milla.publicvm.com:7707

milla.publicvm.com:8808
Mutex

hkpebjnelrq

Attributes
  • delay

    8

  • install

    true

  • install_file

    microsafta.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 3 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\119665A19AE82240EC86094AA.exe
    "C:\Users\Admin\AppData\Local\Temp\119665A19AE82240EC86094AA.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 119665A19AE82240EC86094AA /tr '"C:\Users\Admin\AppData\Roaming\microsafta.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /ru system /rl highest /tn 119665A19AE82240EC86094AA /tr '"C:\Users\Admin\AppData\Roaming\microsafta.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1928
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8BC5.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1436
      • C:\Users\Admin\AppData\Roaming\microsafta.exe
        "C:\Users\Admin\AppData\Roaming\microsafta.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1632

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8BC5.tmp.bat
    Filesize

    154B

    MD5

    07564d4698181cd1188aa731a8d184a4

    SHA1

    f0c891c24baa212f44c7b7d005cf32b15e0f1bb1

    SHA256

    cc47d25e853de2e705cc279111057c4b75b3ea239a511e69a503a9e20c5de446

    SHA512

    7a4b7fa40a737800a99f34a836ad25f07dd57d3d3c87fb187243219d14538125464eb0ab45b7872ba41bc0d8ad5ef8f7291976f3f0d18e6e8ec11c85afd95360

    Download Submit

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

    48KB

    MD5

    47317851e54b34394181c9d05b936256

    SHA1

    4da8b0fcda1836d903d0c210ae8c27be27d8383e

    SHA256

    119665a19ae82240ec86094aa58935708e081dea15b03da7574f342a0e96d153

    SHA512

    550aaf26d3722718a4608d38ef124f09486a2b44ecc5d919b21fae32176d03143eb166526d505713d32e1d8abfc17c594317b9d2b195f863aec87dd36db5d418

    Download Submit

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

    48KB

    MD5

    47317851e54b34394181c9d05b936256

    SHA1

    4da8b0fcda1836d903d0c210ae8c27be27d8383e

    SHA256

    119665a19ae82240ec86094aa58935708e081dea15b03da7574f342a0e96d153

    SHA512

    550aaf26d3722718a4608d38ef124f09486a2b44ecc5d919b21fae32176d03143eb166526d505713d32e1d8abfc17c594317b9d2b195f863aec87dd36db5d418

    Download Submit

  • memory/1616-133-0x0000000000F10000-0x0000000000F22000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1616-134-0x0000000001690000-0x00000000016A0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1632-143-0x000000001B5A0000-0x000000001B5B0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1632-144-0x000000001B5A0000-0x000000001B5B0000-memory.dmp

    Filesize

    64KB

    Download