Overview

overview

10

Static

static

10

aa8a077a0a...18.exe

windows7-x64

10

aa8a077a0a...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2024 09:49

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General

  • Target

    aa8a077a0ac1d57d6b4dc32d5c921fb7_JaffaCakes118.exe

  • Size

    45KB

  • MD5

    aa8a077a0ac1d57d6b4dc32d5c921fb7

  • SHA1

    d7573031d52b833c53c7aa36634a550a2901c75d

  • SHA256

    3ca87f4622aad2d17c69341784de12eca6cd8e4a1ff7daa39bfd0571a8b08042

  • SHA512

    6399cf0abf957f2b475bb58747961fc12ffcf4ec58fc07120a3638240b9e9e797b7b1916c925493efb87811c8ebd160f6938a005ecaf59fd4777059667d3e7cf

  • SSDEEP

    768:juQ3tT/QUscWUCTzGmo2q8sFuzOPIxYjbrgX3ijkn+9P/LombBDZ/x:juQ3tT/LJ2x3xQbUXSw+lNNd/x

Score
10/10
asyncratdefaultdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

anhphux4-24035.portmap.host:24035

anhphux4-24035.portmap.host:2468
Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    host.dll.exe

  • install_folder

    %Temp%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • 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
    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 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa8a077a0ac1d57d6b4dc32d5c921fb7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aa8a077a0ac1d57d6b4dc32d5c921fb7_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "host.dll" /tr '"C:\Users\Admin\AppData\Local\Temp\host.dll.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "host.dll" /tr '"C:\Users\Admin\AppData\Local\Temp\host.dll.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4264
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7E09.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2168
      • C:\Users\Admin\AppData\Local\Temp\host.dll.exe
        "C:\Users\Admin\AppData\Local\Temp\host.dll.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\host.dll.exe
    Filesize

    45KB

    MD5

    aa8a077a0ac1d57d6b4dc32d5c921fb7

    SHA1

    d7573031d52b833c53c7aa36634a550a2901c75d

    SHA256

    3ca87f4622aad2d17c69341784de12eca6cd8e4a1ff7daa39bfd0571a8b08042

    SHA512

    6399cf0abf957f2b475bb58747961fc12ffcf4ec58fc07120a3638240b9e9e797b7b1916c925493efb87811c8ebd160f6938a005ecaf59fd4777059667d3e7cf

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmp7E09.tmp.bat
    Filesize

    155B

    MD5

    eb3a10874b88d4f20a4336cfd3951fd7

    SHA1

    19755c161ab84208c2e9284c75ce7c7bab22faab

    SHA256

    95dee959363134bc2a6960436da45ff114803a0102c3309771cd3deda4c49a08

    SHA512

    40449033022dfe2e70301da38882a099ab894945c4356e7bf83e33b7891bb56bf877c4678b1d2e00b1c01150c8c9bdf7e8f44834b8991d5c2eee80ec7979bd58

    Download Submit

  • memory/2756-14-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/2756-15-0x0000000074CA0000-0x0000000075450000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4536-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4536-1-0x0000000000A80000-0x0000000000A92000-memory.dmp

    Filesize

    72KB

    Download

  • memory/4536-2-0x0000000074D50000-0x0000000075500000-memory.dmp

    Filesize

    7.7MB

    Download

  • memory/4536-3-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

    Download

  • memory/4536-4-0x00000000058A0000-0x000000000593C000-memory.dmp

    Filesize

    624KB

    Download

  • memory/4536-9-0x0000000074D50000-0x0000000075500000-memory.dmp

    Filesize

    7.7MB

    Download