Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 19:51

General

  • Target

    4cc6941db410630d3d300a6093932339_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    4cc6941db410630d3d300a6093932339

  • SHA1

    eeaa0601427db44c13f687ae4570f6d77fd4a151

  • SHA256

    5209bba177a2075a6c5b1d65906344208405d997f9cab2371b47276d020df858

  • SHA512

    21208a11a199809cad1dcf53a59d828a21d0e976e41810e9c27fb281b60476ee70cdf7da560c15d4ff715e36c711ac26153122841a45be9cc6fccd0b3c63bc3a

  • SSDEEP

    24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25M:/h+ZkldoPK8Ya971XjFtAM

Score
10/10

Malware Config

Extracted

Family

limerat

Wallets

1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes
  • aes_key

    nulled

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/cXuQ0V20

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Winservices.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/cXuQ0V20

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4cc6941db410630d3d300a6093932339_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4cc6941db410630d3d300a6093932339_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:724
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      PID:1604
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
      2⤵
      • Creates scheduled task(s)
      PID:3512
  • C:\Users\Admin\secinit\sdchange.exe
    C:\Users\Admin\secinit\sdchange.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
        PID:1500
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
        2⤵
        • Creates scheduled task(s)
        PID:2220
    • C:\Users\Admin\secinit\sdchange.exe
      C:\Users\Admin\secinit\sdchange.exe
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:4568
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        2⤵
          PID:1736
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
          2⤵
          • Creates scheduled task(s)
          PID:1596

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log

        Filesize

        316B

        MD5

        9f893d94b017a0684012d50319c9ffbe

        SHA1

        140cc2cb6b2520ba4f9a1f666a5f679853472793

        SHA256

        8a7cb420c82edf1bb2c7bdfef52091e5169fabaecc370e120985e91406fcbbec

        SHA512

        4b7df94d3622b82d852b0f532d7fd810ca2113d7b737ec417023d5b2142e9e79414a06d22647d73f8bc114f8e871a3a741a479b0aba48892f9078975ec78acba

      • C:\Users\Admin\secinit\sdchange.exe

        Filesize

        1.1MB

        MD5

        9bdd404ef4a9a95bcaab20e8dcb7058f

        SHA1

        022645b0903920954ca1fd063cbafe18ce079692

        SHA256

        fddd88438855577fcc856338a8d6142b81b3c481dcc32f9205a57944fedb07da

        SHA512

        6c993c5bb4deb291fb46d5ad263c80410f52a6c0d6158714b70398cd38426304544d436ca6cb8df5447842b30f8e57b36a4e0d38f4fd88c0136786e61c8bef12

      • memory/724-0-0x0000000001580000-0x0000000001581000-memory.dmp

        Filesize

        4KB

      • memory/1604-1-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/1604-5-0x0000000074A72000-0x0000000074A73000-memory.dmp

        Filesize

        4KB

      • memory/1604-6-0x0000000074A70000-0x0000000075021000-memory.dmp

        Filesize

        5.7MB

      • memory/1604-7-0x0000000074A70000-0x0000000075021000-memory.dmp

        Filesize

        5.7MB

      • memory/1604-10-0x0000000074A70000-0x0000000075021000-memory.dmp

        Filesize

        5.7MB

      • memory/1604-11-0x0000000074A72000-0x0000000074A73000-memory.dmp

        Filesize

        4KB

      • memory/1604-12-0x0000000074A70000-0x0000000075021000-memory.dmp

        Filesize

        5.7MB

      • memory/1736-21-0x00000000003F0000-0x00000000003FC000-memory.dmp

        Filesize

        48KB