Overview

overview

10

Static

static

10

JaffaCakes...17.exe

windows7-x64

10

JaffaCakes...17.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    136s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 13:29

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General

  • Target

    JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe

  • Size

    72KB

  • MD5

    bbb8e40c8828fb4649ab6414cea472f8

  • SHA1

    ee633e317ca9a66a97550aa6e5521803a27693e6

  • SHA256

    5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417

  • SHA512

    c9f9c41ba8c99cb3e913e6cffd63be0f5dfc81e08e056d0ce2083e16b344c0990b9455c21c07e7bf34ba46e9514d66d12966c02d2292b5e5e26aef90f2aed06c

  • SSDEEP

    1536:QoD1Mth9k0XBq+adebTry5UNEN5rNKmVcl:QoD1Mthy0MXebTdk5JK8Y

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

milla.publicvm.com:6606

milla.publicvm.com:7707

milla.publicvm.com:8808
Mutex

bdeyjxzfhfrvuzdyrin

Attributes
  • delay

    3

  • install

    true

  • install_file

    firefoxa.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).

  • Delays execution with timeout.exe 1 IoCs
    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 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\JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417 /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5012
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417 /tr '"C:\Users\Admin\AppData\Roaming\firefoxa.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:664
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAF3B.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1468
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4256
      • C:\Users\Admin\AppData\Roaming\firefoxa.exe
        "C:\Users\Admin\AppData\Roaming\firefoxa.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:5072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAF3B.tmp.bat
    Filesize

    152B

    MD5

    cc156159da52d98edcab998589ec911a

    SHA1

    9e3a85723ea13d0e5196bd77882a8da9928d0d86

    SHA256

    47370ac070a44389579ae13e8f53a4a22cab113306cfea6612b9a9eca336b5bf

    SHA512

    0d565bd714a5b6e5788d7ef4b4ce9794c3e92d1f32e2ec9b026d20e640b0228a13fcad2b50c5748da60dbdf34cd2690a62f068ab4576cac51d06e8a31edfdf38

    Download Submit

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

    72KB

    MD5

    bbb8e40c8828fb4649ab6414cea472f8

    SHA1

    ee633e317ca9a66a97550aa6e5521803a27693e6

    SHA256

    5aaec1bda08134d46382d217dbeba5a93a5969cb6ad918c04476086a21e8d417

    SHA512

    c9f9c41ba8c99cb3e913e6cffd63be0f5dfc81e08e056d0ce2083e16b344c0990b9455c21c07e7bf34ba46e9514d66d12966c02d2292b5e5e26aef90f2aed06c

    Download Submit

  • memory/4488-1-0x00007FFEE6C33000-0x00007FFEE6C35000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4488-0-0x00000000005F0000-0x0000000000602000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4488-2-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4488-8-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

    Filesize

    10.8MB

    Download