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Overview

overview

10

Static

static

7

210619e23f...18.exe

windows7-x64

10

210619e23f...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    42s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    03/07/2024, 04:07

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General

  • Target

    210619e23f9680333393f28461f093d6_JaffaCakes118.exe

  • Size

    404KB

  • MD5

    210619e23f9680333393f28461f093d6

  • SHA1

    2425077adfacabb570fc6e717f987f9d8e8c5ff7

  • SHA256

    cc16d24d1d6b7c806908c6f16ac3827c1d352e4c0c05e4ad47a391746688562a

  • SHA512

    c12ffe1c465b8884cfc816e6b6e10fdc1a3dcdb419cf2c7643eba69416005d019f4b43084625ae36fc51e2ce3e4c8929e0aaa129c1bcbb61604de9f201837715

  • SSDEEP

    6144:kTnjnvrM3mjHGh5Doh9Z5cAea4Jv81E66Hwc2Fq4t:kHn438Hwerea2vEEFz2F

Score
10/10
evasionpersistenceupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • UPX packed file 13 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\210619e23f9680333393f28461f093d6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\210619e23f9680333393f28461f093d6_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
          PID:2792
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\blastclnnn.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3044
        • C:\Windows\SysWOW64\at.exe
          AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\blastclnnn.exe
          3⤵
            PID:2384

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\blastclnnn.exe
        Filesize

        404KB

        MD5

        210619e23f9680333393f28461f093d6

        SHA1

        2425077adfacabb570fc6e717f987f9d8e8c5ff7

        SHA256

        cc16d24d1d6b7c806908c6f16ac3827c1d352e4c0c05e4ad47a391746688562a

        SHA512

        c12ffe1c465b8884cfc816e6b6e10fdc1a3dcdb419cf2c7643eba69416005d019f4b43084625ae36fc51e2ce3e4c8929e0aaa129c1bcbb61604de9f201837715

        Download Submit

      • memory/2024-19-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-14-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-15-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-16-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-18-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-0-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-20-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-21-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-22-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-23-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-24-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download

      • memory/2024-26-0x0000000000400000-0x00000000004C4000-memory.dmp

        Filesize

        784KB

        Download