Analysis

  • max time kernel
    145s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06/10/2024, 09:37

General

  • Target

    178d180e0c8e7a6bd10fc985f8683131_JaffaCakes118.exe

  • Size

    2.7MB

  • MD5

    178d180e0c8e7a6bd10fc985f8683131

  • SHA1

    97fbf858a5dad72cffe943c3461410b64d81bf90

  • SHA256

    6a8425919b1942929fc98d0d8c8777515936042c5499e958304543bf0e8be8b8

  • SHA512

    0c04cdf39c7d5ac22f53ebac669268e8804e20848e39e90a8e06fa3cc1c960dc33a6c2db7bd0efb6222815d06743748d8c5e8a7dcdde6d8bb51b0592e65a618c

  • SSDEEP

    24576:aEtl9mRda1VIUSu7KB8NIyXbacAfUSunEp+XRGEUvkXw6z4Et1:xEs12pHB8NIMI8Sfpwotkzvj

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Renames multiple (91) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\178d180e0c8e7a6bd10fc985f8683131_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\178d180e0c8e7a6bd10fc985f8683131_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops startup file
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\SysWOW64\HelpMe.exe
      C:\Windows\system32\HelpMe.exe
      2⤵
      • Modifies WinLogon for persistence
      • Drops startup file
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1856

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\$Recycle.Bin\S-1-5-21-3063565911-2056067323-3330884624-1000\desktop.ini.exe

          Filesize

          2.7MB

          MD5

          abaff92f421b901b04df393d30f3eeec

          SHA1

          a7c03b384182a0212a3c2e96cbff5ea3a224ace1

          SHA256

          15d0eed86486b8b0cf27ab4fd2e8463d41bcb0f1c5f7bc966cfcc2849f22246c

          SHA512

          0001c115d5f71e7fe8072f6ab6af22561ff7170f6daba094120a5a7c0515d22f8f22e2943feb779826efeeec18ffd423501ddaad22ce7992dd9e7117785ca362

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

          Filesize

          954B

          MD5

          2792dd46d41d8f9d694e8d7be04a9330

          SHA1

          c38a06a0ceadd69c0bf7b53961bcc8c4db4a9b71

          SHA256

          a1a33d64ddb70cefd084ff2dc24b79bad153087c82d4fcde865d484e24c53573

          SHA512

          8b35b51d5667f7ec34b2fd156cc138cc5d5d7cc25f4704f4f34ebe767ee291b5fe86a41be690b54cf563c15191550264ba34c6081266ed01e4a1e487e08d6560

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

          Filesize

          1KB

          MD5

          47ffd8181fc35fc8489a6340cb535efe

          SHA1

          e8e334fb3db982e741861c3a5422e9f5a32b571a

          SHA256

          c2b22ba78517b238b71420edcbffe6baccfbccf71ca466deec7a2dc9932fc907

          SHA512

          93a898806da373f01967946fa6c1fa9bdc7ed59c3a292c9846a7ac6a84875785c75e042b839fe614eb108977649c65342a74936b0bbe2bf30b172e5c5d9d68bb

        • F:\AUTORUN.INF

          Filesize

          145B

          MD5

          ca13857b2fd3895a39f09d9dde3cca97

          SHA1

          8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

          SHA256

          cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

          SHA512

          55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

        • F:\AutoRun.exe

          Filesize

          2.7MB

          MD5

          178d180e0c8e7a6bd10fc985f8683131

          SHA1

          97fbf858a5dad72cffe943c3461410b64d81bf90

          SHA256

          6a8425919b1942929fc98d0d8c8777515936042c5499e958304543bf0e8be8b8

          SHA512

          0c04cdf39c7d5ac22f53ebac669268e8804e20848e39e90a8e06fa3cc1c960dc33a6c2db7bd0efb6222815d06743748d8c5e8a7dcdde6d8bb51b0592e65a618c

        • \Windows\SysWOW64\HelpMe.exe

          Filesize

          2.7MB

          MD5

          82965e433eb5a238a4799ed73cd11deb

          SHA1

          01c6fdd542b74e1ca43618f01e28ed8bc29da072

          SHA256

          eea8932b004270395fc51f2da0451e4adc1f8d17de7acbfcac1d7739ac604444

          SHA512

          5cac544dd823d3dbd2bd886e8987e4cf2fe276ee2371b15472606162dbdda087ddcc53a6b5e2ef3ddb2434f537bbbed6480aee56e842cfc9f9c306c7569f6096

        • memory/1856-11-0x0000000000400000-0x000000000047894E-memory.dmp

          Filesize

          482KB

        • memory/1856-13-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

        • memory/1856-234-0x0000000000400000-0x000000000047894E-memory.dmp

          Filesize

          482KB

        • memory/2220-0-0x0000000000400000-0x000000000047894E-memory.dmp

          Filesize

          482KB

        • memory/2220-74-0x0000000000400000-0x000000000047894E-memory.dmp

          Filesize

          482KB

        • memory/2220-79-0x00000000001B0000-0x00000000001B1000-memory.dmp

          Filesize

          4KB

        • memory/2220-233-0x0000000000480000-0x00000000004F9000-memory.dmp

          Filesize

          484KB

        • memory/2220-4-0x0000000000480000-0x00000000004F9000-memory.dmp

          Filesize

          484KB

        • memory/2220-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

          Filesize

          4KB