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Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06/10/2024, 23:13

General

  • Target

    1a390ce9a38656bacbab2c736b376086_JaffaCakes118.exe

  • Size

    342KB

  • MD5

    1a390ce9a38656bacbab2c736b376086

  • SHA1

    8ed6c5c558ccef8562e9b414efc258933e60ea6f

  • SHA256

    c4301978bfe1f1e601b8a9ccc63f2fbc4590b74bb46d6a95ed26f72a12556daa

  • SHA512

    a42b3754c2e1ebba6c2cbae61825243f93c3d1322c08c924003a53af10c9fbc9c0f9d07854dae9a1cffe2ea99986cdb0250c6c9989abbd65c8c6c7d7eaf44a8a

  • SSDEEP

    6144:9Rqmpp+amNOGokzLyM9tsLAitQo6tzOKkzIt8gKyfjxfR9D2j4yXoQHtVee:DqmpplpGoGL3etQoMiXM8gxf/Sj4yXlu

Malware Config

Extracted

Family

latentbot

C2

lesperez1337.zapto.org

Signatures

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in System32 directory 7 IoCs
  • UPX packed file 21 IoCs

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

  • Drops file in Windows directory 8 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a390ce9a38656bacbab2c736b376086_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1a390ce9a38656bacbab2c736b376086_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds policy Run key to start application
    • Boot or Logon Autostart Execution: Active Setup
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Windows\SysWOW64\fservice.exe
      C:\Windows\system32\fservice.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\services.exe
        C:\Windows\services.exe -XP
        3⤵
        • Modifies WinLogon for persistence
        • Adds policy Run key to start application
        • Boot or Logon Autostart Execution: Active Setup
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies WinLogon
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1912
        • C:\Windows\SysWOW64\NET.exe
          NET STOP srservice
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2804
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 STOP srservice
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1316
        • C:\Windows\SysWOW64\NET.exe
          NET STOP navapsvc
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2584
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 STOP navapsvc
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2544
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\1a390ce9a38656bacbab2c736b376086_JaffaCakes118.exe.bat
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:308

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1a390ce9a38656bacbab2c736b376086_JaffaCakes118.exe.bat

    Filesize

    133B

    MD5

    db500d9bf07e7c0b4fdda096b9311552

    SHA1

    25f174a961d6f28206208139c9f07adc1128f8b1

    SHA256

    db36804977b89d9e9669a20159b47bf0d8bdd1d7c229074647e06ec75f054fd5

    SHA512

    c67215fb34cd039984d8a98626a9153a43043776f5ccedd7773bef65cd3210b5298965313dabe85f3ae21be2ca20f1dfe5042ddbc8cf1d0fa3fca518f9b8f6d9

  • \Windows\SysWOW64\fservice.exe

    Filesize

    342KB

    MD5

    1a390ce9a38656bacbab2c736b376086

    SHA1

    8ed6c5c558ccef8562e9b414efc258933e60ea6f

    SHA256

    c4301978bfe1f1e601b8a9ccc63f2fbc4590b74bb46d6a95ed26f72a12556daa

    SHA512

    a42b3754c2e1ebba6c2cbae61825243f93c3d1322c08c924003a53af10c9fbc9c0f9d07854dae9a1cffe2ea99986cdb0250c6c9989abbd65c8c6c7d7eaf44a8a

  • \Windows\SysWOW64\reginv.dll

    Filesize

    36KB

    MD5

    562e0d01d6571fa2251a1e9f54c6cc69

    SHA1

    83677ad3bc630aa6327253c7b3deffbd4a8ce905

    SHA256

    c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

    SHA512

    166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

  • \Windows\SysWOW64\winkey.dll

    Filesize

    13KB

    MD5

    b4c72da9fd1a0dcb0698b7da97daa0cd

    SHA1

    b25a79e8ea4c723c58caab83aed6ea48de7ed759

    SHA256

    45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

    SHA512

    f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

  • memory/1912-51-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-65-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-25-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-26-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1912-79-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-30-0x0000000010000000-0x000000001000B000-memory.dmp

    Filesize

    44KB

  • memory/1912-77-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-75-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-73-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-71-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-69-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-52-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1912-54-0x0000000010000000-0x000000001000B000-memory.dmp

    Filesize

    44KB

  • memory/1912-53-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-55-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-57-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-59-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-61-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-63-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/1912-67-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/2736-19-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/2736-45-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/2784-0-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/2784-48-0x0000000000400000-0x00000000005FC000-memory.dmp

    Filesize

    2.0MB

  • memory/2784-1-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2784-13-0x0000000003040000-0x000000000323C000-memory.dmp

    Filesize

    2.0MB

  • memory/2784-14-0x0000000003040000-0x000000000323C000-memory.dmp

    Filesize

    2.0MB