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Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11/09/2024, 09:24

General

  • Target

    5f1b878a21b60e4ac81f3a54c9539bb0N.exe

  • Size

    1.0MB

  • MD5

    5f1b878a21b60e4ac81f3a54c9539bb0

  • SHA1

    dbfab1552106e112475009c708d4c06efa7bab06

  • SHA256

    fb5378e01f46ff1a9b3a0322451552918bef0c3a7f2a1fc82f1a3d783753dbcd

  • SHA512

    fe8443f8aa389dc30947b8cff1fc3df161a58325ecfdc708226e63724c38eb6d8b5f608f31626bd59f9e73c27921d3b7255fe9135bea83653a470b379d760eef

  • SSDEEP

    24576:4CuQ7k91hxia8yBIwcG4RtegeohjT6S71OUnSAx:puQ7k91hxia8E93eZD17rx

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 13 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f1b878a21b60e4ac81f3a54c9539bb0N.exe
    "C:\Users\Admin\AppData\Local\Temp\5f1b878a21b60e4ac81f3a54c9539bb0N.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2196
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\$$aEDF7.bat
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Users\Admin\AppData\Local\Temp\5f1b878a21b60e4ac81f3a54c9539bb0N.exe
        "C:\Users\Admin\AppData\Local\Temp\5f1b878a21b60e4ac81f3a54c9539bb0N.exe"
        3⤵
        • Executes dropped EXE
        PID:2872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\$$aEDF7.bat

    Filesize

    536B

    MD5

    7622674baf856651054a1e36e3aca883

    SHA1

    ba7564c955225ac07da74e15a3d48a1926cbc4dd

    SHA256

    631c9d9da3afe80fd3eee3620a3f48b265e1577b97296f2bd830da11e9599041

    SHA512

    dccd93adf54ecb6845e1db7cb1553b413ab79057e5190b7b6aa2b6cb29414a161c9872c4aa0ab35e3f171635cb70f62b1df4ff5fbcdb73f668989531c08d3edb

  • C:\Users\Admin\AppData\Local\Temp\5f1b878a21b60e4ac81f3a54c9539bb0N.exe

    Filesize

    1004KB

    MD5

    148064f3f1e91ecd6561984925d47f00

    SHA1

    0d0fd99b96fb0261227394846f18995820e720b4

    SHA256

    01b6ee8d51719143cea2b6bede99299dac088b224fd363eea28178918fa85a6b

    SHA512

    d5b0acb091453c95b67fd01e21cfc1a2bfe2900ee729b60139f41e2126a79a33781e4db824ef2082e014edfae81feadebb831341879fed110f216317c1716c1f

  • memory/1960-0-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1960-1-0x0000000000020000-0x0000000000040000-memory.dmp

    Filesize

    128KB

  • memory/1960-14-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2724-20-0x0000000002020000-0x0000000002135000-memory.dmp

    Filesize

    1.1MB

  • memory/2872-21-0x0000000000400000-0x0000000000515000-memory.dmp

    Filesize

    1.1MB

  • memory/2872-22-0x0000000000400000-0x0000000000515000-memory.dmp

    Filesize

    1.1MB