Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2024 13:44

General

  • Target

    6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe

  • Size

    1.2MB

  • MD5

    6f39bef2b991c3a0af1b5f6627d86a35

  • SHA1

    2fdacae9eece2a9ce3490c3a387d6c490335a2d6

  • SHA256

    e2d1b0d24ef3372c4e89cab1cd52a0cbd862a76d9dcec3b3d8e9173da4791685

  • SHA512

    6cface4c65f11246f74afa3d2cb9592950a42946e959219c2d49ab7dfb29cc727b7f5b0e20dc9dfc523bbf0136d21517a7b99149ea6bdae0bbd3618f9e0b0a78

  • SSDEEP

    24576:IMc1bS0R6crXjYp36O1aNjoWBFJDq9SpCxfzs2o2SV/deDrgO:IMcxS0RTrzYp3/oNEWxq8pCRzro2SV/u

Score
10/10

Malware Config

Signatures

  • Detects Renamer worm. 5 IoCs

    Renamer aka Grename is worm written in Delphi.

  • Renamer, Grenam

    Renamer aka Grenam is a worm written in Delphi.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Drops autorun.inf file 1 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows 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 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IKoWZvhVjiC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C68.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:892
    • C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe"
      2⤵
        PID:3896
      • C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe"
        2⤵
          PID:2736
        • C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\6f39bef2b991c3a0af1b5f6627d86a35_JaffaCakes118.exe"
          2⤵
          • Drops startup file
          • Drops autorun.inf file
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:3616

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\Java\jdk-1.8\bin\vjavaws.ico

        Filesize

        4KB

        MD5

        38b41d03e9dfcbbd08210c5f0b50ba71

        SHA1

        2fbfde75ce9fe8423d8e7720bf7408cedcb57a70

        SHA256

        611f2cb2e03bd8dbcb584cd0a1c48accfba072dd3fc4e6d3144e2062553637f5

        SHA512

        ec97556b6ff6023d9e6302ba586ef27b1b54fbf7e8ac04ff318aa4694f13ad343049210ef17b7b603963984c1340589665d67d9c65fec0f91053ff43b1401ba9

      • C:\Program Files\Microsoft Office 15\ClientX64\vIntegratedOffice.ico

        Filesize

        4KB

        MD5

        3ea9bcbc01e1a652de5a6fc291a66d1a

        SHA1

        aee490d53ee201879dff37503a0796c77642a792

        SHA256

        a058bfd185fe714927e15642004866449bce425d34292a08af56d66cf03ebe6c

        SHA512

        7c740132f026341770b6a20575786da581d8a31850d0d680978a00cc4dfca1e848ef9cdc32e51bae680ea13f6cc0d7324c38765cb4e26dcb2e423aced7da0501

      • C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\vmisc.ico

        Filesize

        4KB

        MD5

        fc27f73816c9f640d800cdc1c9294751

        SHA1

        e6c3d8835d1de4e9606e5588e741cd1be27398f6

        SHA256

        3cc5043caa157e5f9b1870527b8c323850bdae1e58d6760e4e895d2ab8a35a05

        SHA512

        9e36b96acc97bc7cd45e67a47f1ae7ab7d3818cc2fdaad147524ce9e4baedfaac9cd012923ec65db763bfd850c65b497376bb0694508bee59747f97bf1591fd4

      • C:\Users\Admin\AppData\Local\Temp\tmp3C68.tmp

        Filesize

        1KB

        MD5

        fa497c847503d45b86b04efa6d532361

        SHA1

        ae9e802b4e5a17df7c60857979953c088c6759bc

        SHA256

        2c1cbcccc45391793829638cea1848ccdbbf4167019495324e466b95a5a4c7d8

        SHA512

        9c9d052f5c651cda02eefa36836487eda9a9c7bfbb8eb71d6f5ed0eedd91a86b3e3c351f289aff2b79982a681ce7d0a3353c88eba68b06a260bfc8e2cc5282ac

      • C:\Users\Admin\AppData\Roaming\Paint.exe

        Filesize

        1.2MB

        MD5

        6f39bef2b991c3a0af1b5f6627d86a35

        SHA1

        2fdacae9eece2a9ce3490c3a387d6c490335a2d6

        SHA256

        e2d1b0d24ef3372c4e89cab1cd52a0cbd862a76d9dcec3b3d8e9173da4791685

        SHA512

        6cface4c65f11246f74afa3d2cb9592950a42946e959219c2d49ab7dfb29cc727b7f5b0e20dc9dfc523bbf0136d21517a7b99149ea6bdae0bbd3618f9e0b0a78

      • F:\autorun.inf

        Filesize

        102B

        MD5

        5513829683bff23161ca7d8595c25c72

        SHA1

        9961b65bbd3bac109dddd3a161fc30650e8a7096

        SHA256

        94e323bd9071db7369ade16f45454e7a0dbfb6a39efddc1234c4719d1f7ee4c2

        SHA512

        308c84446106cda0a71e37b0de46aaf4b7361f9ddcc3c4c29f8e87da8acb606525dce8a42caf9d74e708c56b31c524f9535a2f5f4757c6c357401da1c495ddb6

      • memory/3616-292-0x0000000000400000-0x00000000004DB000-memory.dmp

        Filesize

        876KB

      • memory/3616-293-0x0000000001170000-0x0000000001171000-memory.dmp

        Filesize

        4KB

      • memory/3616-23-0x0000000001170000-0x0000000001171000-memory.dmp

        Filesize

        4KB

      • memory/3616-22-0x0000000000400000-0x00000000004DB000-memory.dmp

        Filesize

        876KB

      • memory/3616-21-0x0000000000400000-0x00000000004DB000-memory.dmp

        Filesize

        876KB

      • memory/3616-19-0x0000000000400000-0x00000000004DB000-memory.dmp

        Filesize

        876KB

      • memory/3616-18-0x0000000000400000-0x00000000004DB000-memory.dmp

        Filesize

        876KB

      • memory/4448-12-0x000000000B520000-0x000000000B5F4000-memory.dmp

        Filesize

        848KB

      • memory/4448-7-0x0000000074F10000-0x00000000756C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-11-0x0000000008BF0000-0x0000000008CFA000-memory.dmp

        Filesize

        1.0MB

      • memory/4448-10-0x0000000074F10000-0x00000000756C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-9-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

        Filesize

        4KB

      • memory/4448-24-0x0000000074F10000-0x00000000756C0000-memory.dmp

        Filesize

        7.7MB

      • memory/4448-8-0x0000000008990000-0x00000000089A6000-memory.dmp

        Filesize

        88KB

      • memory/4448-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

        Filesize

        4KB

      • memory/4448-6-0x0000000005C60000-0x0000000005CB6000-memory.dmp

        Filesize

        344KB

      • memory/4448-5-0x0000000005A80000-0x0000000005A8A000-memory.dmp

        Filesize

        40KB

      • memory/4448-4-0x0000000005B30000-0x0000000005BC2000-memory.dmp

        Filesize

        584KB

      • memory/4448-3-0x00000000060E0000-0x0000000006684000-memory.dmp

        Filesize

        5.6MB

      • memory/4448-2-0x0000000005A90000-0x0000000005B2C000-memory.dmp

        Filesize

        624KB

      • memory/4448-1-0x0000000000FA0000-0x00000000010CE000-memory.dmp

        Filesize

        1.2MB