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Overview

overview

10

Static

static

5

5fd1ff1d03...40.exe

windows7-x64

10

5fd1ff1d03...40.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    101s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2023, 08:28

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General

  • Target

    5fd1ff1d035c67c382afa55817ac6f40.exe

  • Size

    512KB

  • MD5

    5fd1ff1d035c67c382afa55817ac6f40

  • SHA1

    9126223a8d4f8a5541a1a200c4d3a71610a41a82

  • SHA256

    0158b219726d86f4fd078dc12c0b4276028ad604ce0903947034dc3c88b856e4

  • SHA512

    468b4abb8715bfe787e1e6ee6a869543fef2baedbea8a350e5a65583a973a701c3b182eda8740c8627b09b6efe7f1b200b1006ca65df60e6a96b6bce7c04e29c

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6y:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5x

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • 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
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 5 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fd1ff1d035c67c382afa55817ac6f40.exe
    "C:\Users\Admin\AppData\Local\Temp\5fd1ff1d035c67c382afa55817ac6f40.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Windows\SysWOW64\smrbsavggsldg.exe
      smrbsavggsldg.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2408
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2592
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1424
      • C:\Windows\SysWOW64\ndydbygf.exe
        ndydbygf.exe
        2⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2760
      • C:\Windows\SysWOW64\xpgcwaqqvwnnvxm.exe
        xpgcwaqqvwnnvxm.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2776
      • C:\Windows\SysWOW64\gsyzzvjubk.exe
        gsyzzvjubk.exe
        2⤵
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Loads dropped DLL
        • Windows security modification
        • Enumerates connected drives
        • Modifies WinLogon
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2732
    • C:\Windows\SysWOW64\ndydbygf.exe
      C:\Windows\system32\ndydbygf.exe
      1⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2808

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
      Filesize

      20KB

      MD5

      0fdd0a74c41cf1acc901ce7d7e3b53e7

      SHA1

      21d99e67018fb2bcbf64b56f2fc3ee70a37d0ae2

      SHA256

      fcfa44f2f4eda36e17bfc86df8f87a16732cd12102f902b05f0070db6220781a

      SHA512

      321e6e115d17ccb280b9ee015dc1aa10e893bacba17a5672bf87b4bf4748526837e5c0e5e4efdca688c502b03a5fc94195ec12b4d0169d7d5ffc3052239d5183

      Download Submit

    • C:\Windows\SysWOW64\gsyzzvjubk.exe
      Filesize

      92KB

      MD5

      6662b185f19fbf697c56a25c92de7961

      SHA1

      0df0c0df0de3724258df2549c583e3c934aca726

      SHA256

      c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

      SHA512

      c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

      Download Submit

    • C:\Windows\SysWOW64\xpgcwaqqvwnnvxm.exe
      Filesize

      91KB

      MD5

      45919c63699643c76616ebd5003d3c7f

      SHA1

      8b3a793ac7b62244d18fe49c548f6d0dd5f20b5a

      SHA256

      f2cd726bd32c1aa89c38bc0b95fd8c47873ab1ef5bc8194fd04885fd76ac9e77

      SHA512

      41bbabacc22a42afd857735de38345818a8caf8aa6d902181c22f30a696826adfe74ab2350ec0c124c4130b103aa4f6db290c57d13e4de9b3b5f4b1d7dfbc8bd

      Download Submit

    • \Windows\SysWOW64\gsyzzvjubk.exe
      Filesize

      512KB

      MD5

      68ee490752cf45c3aa90c53bd2765710

      SHA1

      4e4bdb8448045b54951eff38795bd4553ee1402c

      SHA256

      fb9134a9b29822fc2557adaa7bf31767666522aed9b0259f0a6118c3417c7ee2

      SHA512

      98c6bbd40eaeb59351a8323ed2b86f76a1a365ea45304648e51548daa1e3a29cda7086ff526a7b8bc139ab2ee7421c037d02f936fe3b4254c9ec6b2b41c3a94e

      Download Submit

    • \Windows\SysWOW64\xpgcwaqqvwnnvxm.exe
      Filesize

      512KB

      MD5

      8b2ed7ac277699598c9de16455939c41

      SHA1

      944c94782b9e3fe4f06eb75f9e478537cb25f9af

      SHA256

      f4626efc904735d5f0797bc6ae739713f84c36abef268bf6afb0e46deeb1379d

      SHA512

      11a461ce6713217e6939846e05ccc7b652fc4aa2b0e39ca9b1a35cac8e3ec31ec4b922f5f2f561334b0562aacf641cf77756e4a4cdf842a8a9a5cb25af3da2ac

      Download Submit

    • memory/2440-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

      Download

    • memory/2592-45-0x000000002F6B1000-0x000000002F6B2000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2592-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2592-47-0x000000007152D000-0x0000000071538000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2592-80-0x000000007152D000-0x0000000071538000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2592-101-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download