Overview

overview

10

Static

static

3

8f78832d04...d1.exe

windows7-x64

10

8f78832d04...d1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    35s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2024 15:10

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General

  • Target

    8f78832d0481f5a37990941ca2c78ed1.exe

  • Size

    21KB

  • MD5

    8f78832d0481f5a37990941ca2c78ed1

  • SHA1

    d2d951940a5633ae594c05fbe4ccb9a544bd457d

  • SHA256

    16abb80e73599e6bbcb353667a743ff48b87a68ee2fb7489562325d6acd1d95a

  • SHA512

    a7fdb2979b24675131a7a1385f695cd70db58d0720544e97decc3db744b6cbf31ad3e9102e73ef5367cbc81a981cc521c14d5f8691e8f4d1410a14672f08422b

  • SSDEEP

    384:Z8sCHeP5IEA2ZUBTFSrR1ufAtUXNfQE7:ZlCH7EVZUBTFK1uZXNT

Score
10/10
evasionpersistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 8 IoCs
    persistence
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Disables RegEdit via registry modification 8 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 8 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 32 IoCs
  • Adds Run key to start application 2 TTPs 24 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 46 IoCs
  • Drops file in Windows directory 31 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 4 IoCs
  • Suspicious use of SetWindowsHookEx 33 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f78832d0481f5a37990941ca2c78ed1.exe
    "C:\Users\Admin\AppData\Local\Temp\8f78832d0481f5a37990941ca2c78ed1.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Windows\SysWOW64\Startup\scvhost.exe
      "C:\Windows\system32\Startup\scvhost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\Startup\scvhost.exe
        "C:\Windows\system32\Startup\scvhost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3544
      • C:\Windows\SysWOW64\Startup\Scan.com
        "C:\Windows\System32\Startup\Scan.com"
        3⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3020
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2276
        • C:\Windows\SysWOW64\Startup\Scan.com
          "C:\Windows\System32\Startup\Scan.com"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2656
        • C:\Windows\system\winexec.com
          "C:\Windows\system\winexec.com"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4836
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3912
        • C:\Windows\SysWOW64\caudio.exe
          "C:\Windows\system32\caudio.exe"
          4⤵
            PID:2856
          • C:\Windows\winlog.com
            "C:\Windows\winlog.com"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:3600
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan.com
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scan.com"
        2⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2616
        • C:\Windows\SysWOW64\Startup\Scan.com
          "C:\Windows\System32\Startup\Scan.com"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4728
        • C:\Windows\winlog.com
          "C:\Windows\winlog.com"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2052
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3636
        • C:\Windows\system\winexec.com
          "C:\Windows\system\winexec.com"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:5104
        • C:\Windows\SysWOW64\caudio.exe
          "C:\Windows\system32\caudio.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2376
      • C:\Windows\winlog.com
        "C:\Windows\winlog.com"
        2⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:316
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2776
        • C:\Windows\SysWOW64\Startup\Scan.com
          "C:\Windows\System32\Startup\Scan.com"
          3⤵
          • Modifies WinLogon for persistence
          • Disables RegEdit via registry modification
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:1256
      • C:\Windows\SysWOW64\caudio.exe
        "C:\Windows\system32\caudio.exe"
        2⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Windows\SysWOW64\Startup\Scan.com
          "C:\Windows\System32\Startup\Scan.com"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2268
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4816
      • C:\Windows\system\winexec.com
        "C:\Windows\system\winexec.com"
        2⤵
        • Modifies WinLogon for persistence
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        PID:464
        • C:\Windows\SysWOW64\Startup\scvhost.exe
          "C:\Windows\system32\Startup\scvhost.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3412
        • C:\Windows\SysWOW64\Startup\Scan.com
          "C:\Windows\System32\Startup\Scan.com"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3012
      • C:\Windows\SysWOW64\Startup\scvhost.exe
        "C:\Windows\system32\Startup\scvhost.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1968
    • C:\Windows\SysWOW64\Startup\scvhost.exe
      "C:\Windows\system32\Startup\scvhost.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4544
    • C:\Windows\SysWOW64\Startup\scvhost.exe
      "C:\Windows\system32\Startup\scvhost.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3900
    • C:\Windows\SysWOW64\Startup\Scan.com
      "C:\Windows\System32\Startup\Scan.com"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4888
    • C:\Windows\SysWOW64\Startup\scvhost.exe
      "C:\Windows\system32\Startup\scvhost.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2420
    • C:\Windows\system\winexec.com
      "C:\Windows\system\winexec.com"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1364
    • C:\Windows\SysWOW64\caudio.exe
      "C:\Windows\system32\caudio.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1980
    • C:\Windows\winlog.com
      "C:\Windows\winlog.com"
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4616
    • C:\Windows\System32\sihclient.exe
      C:\Windows\System32\sihclient.exe /cv uElzg+y1x0qW6k/54cBaeg.0.2
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2856

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Melati.bat
      Filesize

      25B

      MD5

      b28b76dd27531fb71240e74117201437

      SHA1

      128f5be3f1d22da817cf5bded45c59360447de38

      SHA256

      f8931c13a85927c02d741e619b9f3d9a97366a7ba5b5abc2903e6986a647c53d

      SHA512

      7377f74e81c42f3bf4d4ba8bb593801d0e049a63b800e7cce5ad055107fcd4aa754cb73a387b0eb61f4a9b6787532ba0672c5aa280b73231fe1d8b86f30b5e98

      Download Submit

    • C:\Windows\System\winexec.com
      Filesize

      21KB

      MD5

      8f78832d0481f5a37990941ca2c78ed1

      SHA1

      d2d951940a5633ae594c05fbe4ccb9a544bd457d

      SHA256

      16abb80e73599e6bbcb353667a743ff48b87a68ee2fb7489562325d6acd1d95a

      SHA512

      a7fdb2979b24675131a7a1385f695cd70db58d0720544e97decc3db744b6cbf31ad3e9102e73ef5367cbc81a981cc521c14d5f8691e8f4d1410a14672f08422b

      Download Submit

    • memory/316-169-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/316-304-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/316-252-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/464-480-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/464-191-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1256-218-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1364-222-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1968-133-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1980-220-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2052-163-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2268-190-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2276-103-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2340-180-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2376-175-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2420-221-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-331-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-131-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-291-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-251-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-423-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-464-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-38-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-383-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-637-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-597-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2568-511-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2616-138-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2616-165-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2656-112-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2776-139-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2856-173-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3012-198-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3020-159-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3020-143-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3412-187-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3544-66-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3544-69-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3600-164-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3636-174-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3900-194-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3912-177-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4160-0-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4160-127-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4544-104-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4616-213-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4728-111-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4816-182-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4836-171-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4888-202-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download

    • memory/5104-181-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

      Download