Overview

overview

10

Static

static

10

JaffaCakes...71.exe

windows7-x64

10

JaffaCakes...71.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • 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
    26-12-2024 23:22

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General

  • Target

    JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe

  • Size

    72KB

  • MD5

    36d24132150e820598e182d2f51b35b6

  • SHA1

    a1773014c2f0ac1dafc87f3e8d6cd2f697417eae

  • SHA256

    e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71

  • SHA512

    f6da08a584e74bdc2f9f7ea611fc49cfacc8bea3e301c86b53d8c0354028e245b6d9f0149a98207023fcbb9b5561f177e6835e16dfbb2f3d6a343569c0440350

  • SSDEEP

    768:YoBLMxx0Fs4G7WHNw13wRCn1OCDyjb5gr3ir/u2lj4/aJClZl2tYcFmVc6Ka:YoBLMxmcAUVebWrSrGsgPrlKmVcla

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

tytfuzulyxhydjlicv

Attributes
  • delay

    8

  • install

    true

  • install_file

    expanda.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_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71 /tr '"C:\Users\Admin\AppData\Roaming\expanda.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /ru system /rl highest /tn JaffaCakes118_e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71 /tr '"C:\Users\Admin\AppData\Roaming\expanda.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3652
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA4CB.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:640
      • C:\Users\Admin\AppData\Roaming\expanda.exe
        "C:\Users\Admin\AppData\Roaming\expanda.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4280

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA4CB.tmp.bat
    Filesize

    151B

    MD5

    d61122f195c201bec7fb8f38fcffc04c

    SHA1

    f85e8e658ec8f28703f93158213bdba2fa46d401

    SHA256

    384b8b06595e0609d4380bda86e5acd92aa87860a960b2d2d4a91552613f2a83

    SHA512

    07b7311180401aa74a5d5208007b0ed66c8767fd399e35a59c3f77ff2043f47987c4e4006697085395c779b2a0d3aa3fdae7ae58e9144ea7a835483ee399d7cd

    Download Submit

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

    72KB

    MD5

    36d24132150e820598e182d2f51b35b6

    SHA1

    a1773014c2f0ac1dafc87f3e8d6cd2f697417eae

    SHA256

    e8ba9a4744b38798138c8360fa0c892169f128658ae80e9cf229e34c2a683a71

    SHA512

    f6da08a584e74bdc2f9f7ea611fc49cfacc8bea3e301c86b53d8c0354028e245b6d9f0149a98207023fcbb9b5561f177e6835e16dfbb2f3d6a343569c0440350

    Download Submit

  • memory/4496-0-0x00007FFCD54B3000-0x00007FFCD54B5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4496-1-0x00000000007E0000-0x00000000007F2000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4496-2-0x00007FFCD54B0000-0x00007FFCD5F71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4496-7-0x00007FFCD54B0000-0x00007FFCD5F71000-memory.dmp

    Filesize

    10.8MB

    Download