Overview

overview

10

Static

static

3

8bf87026bc...18.exe

windows7-x64

10

8bf87026bc...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 21:05

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General

  • Target

    8bf87026bc88360e76a197d4e4804281_JaffaCakes118.exe

  • Size

    256KB

  • MD5

    8bf87026bc88360e76a197d4e4804281

  • SHA1

    6f8a40cb16b9e940cedad97c87390d34fbc4293b

  • SHA256

    907000b4ae5bcc2140ef73ad194b178374f7b57b34ecf817cbf1535d2e234065

  • SHA512

    348751f7372663401244cbc86329cefa3cf24cca2a0640d49095798fd868a256e7f13fbd03f731ba312d72fd978d964fd942ff028e14b6e493da716c8aa54a60

  • SSDEEP

    6144:97RPGkG+2O01WQY4MyTjGMT8N00lFKgOLpE4dFbbxGo:97RekGLO0CyvGMT8N00GlDM

Score
10/10
discoveryevasionpersistenceupx

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 8 IoCs
  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 53 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
    discovery
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bf87026bc88360e76a197d4e4804281_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8bf87026bc88360e76a197d4e4804281_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2284
    • C:\Users\Admin\pmuEma.exe
      C:\Users\Admin\pmuEma.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3924
      • C:\Users\Admin\ruobi.exe
        "C:\Users\Admin\ruobi.exe"
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4100
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del pmuEma.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4000
    • C:\Users\Admin\2gal.exe
      C:\Users\Admin\2gal.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5060
      • C:\Users\Admin\2gal.exe
        "C:\Users\Admin\2gal.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1384
      • C:\Users\Admin\2gal.exe
        "C:\Users\Admin\2gal.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:4992
      • C:\Users\Admin\2gal.exe
        "C:\Users\Admin\2gal.exe"
        3⤵
        • Executes dropped EXE
        • Maps connected drives based on registry
        • Suspicious behavior: EnumeratesProcesses
        PID:4064
      • C:\Users\Admin\2gal.exe
        "C:\Users\Admin\2gal.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2932
      • C:\Users\Admin\2gal.exe
        "C:\Users\Admin\2gal.exe"
        3⤵
        • Executes dropped EXE
        PID:4048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 80
          4⤵
          • Program crash
          PID:2244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c tasklist&&del 8bf87026bc88360e76a197d4e4804281_JaffaCakes118.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4944
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4048 -ip 4048
    1⤵
      PID:1944

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\2gal.exe
      Filesize

      124KB

      MD5

      b87ba20f00e6a88f59b4553cea7b9d1f

      SHA1

      1ed552e7b9f746eb15c9c28375757a37e22d6b01

      SHA256

      dcb0fe1a43622940710ddfb0092310b4dbec0e33734ca4f821e3e0676c856c20

      SHA512

      f836240e5540a8b3d7492251a9bb2fecd7264418aa8815c3a4efd1dc4691cc5c17d5ce29bf3083397e16255236484cb702cdf0c18ba8c73a6c9b380d7f1f2864

      Download Submit

    • C:\Users\Admin\pmuEma.exe
      Filesize

      228KB

      MD5

      ad9cc8240daec36c262060e8e8b56883

      SHA1

      c04edbee2e80d1be34ef66cbda894c17bd19ffec

      SHA256

      baf38692de9b19c79fc98686a16f8f557b6cd6cf483669b589e4f7ed84e9ed24

      SHA512

      0a3a0f52aa77a5bc9f38aba3114fcf5a93f3d12a533afb98c3a9688e5364edec6929105e2962f3ce7b0798ac4bc6e5f6619929d428e563f0aa2fea1aacb2d05b

      Download Submit

    • C:\Users\Admin\ruobi.exe
      Filesize

      228KB

      MD5

      641f70e9328fb354ba68c26e321e31c3

      SHA1

      591a40cae3aa51624fe7d3c897c5ba44dc99dea3

      SHA256

      6934d28e904160826127f7161c85daa031db915eeee9a014568c6cf43574b739

      SHA512

      6f608d9d2469696b1be93df60b4dc01ef1e416f7b40c7755bd6234bfd6ad163dc4246c826405e5426779fe6bfb5efc334f87c42d54f7b7a8c8b725092debd780

      Download Submit

    • memory/1384-49-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/1384-51-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/1384-72-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/1384-47-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2932-68-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2932-79-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2932-62-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/2932-65-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/4064-61-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/4064-64-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/4064-67-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/4064-59-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/4064-78-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

      Download

    • memory/4992-52-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4992-55-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4992-56-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4992-57-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

      Download