Overview

overview

10

Static

static

5

54f3c11328...a3.exe

windows7-x64

10

54f3c11328...a3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12/01/2024, 00:07

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General

  • Target

    54f3c113280b05d6b04095c2a62aa0a3.exe

  • Size

    512KB

  • MD5

    54f3c113280b05d6b04095c2a62aa0a3

  • SHA1

    1fbb8bba89a5d57c50361a25669d103909cf5c6a

  • SHA256

    f5c1e2b62ffa6bb8137f29183d4003b5053ad1234d90e372b5d2019bc29fae73

  • SHA512

    64c5b63e222a509dce98179b885bc44cddfd20af0413a557c745d1b9bed6cd70d1151601e9cdc4f315140b81b30b7d20e00b2df11dd49341a04e36ff4d5a1428

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6s:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5v

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 6 IoCs
  • Loads dropped DLL 6 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 9 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 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54f3c113280b05d6b04095c2a62aa0a3.exe
    "C:\Users\Admin\AppData\Local\Temp\54f3c113280b05d6b04095c2a62aa0a3.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:2556
    • C:\Windows\SysWOW64\cxabbyootw.exe
      cxabbyootw.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:2436
      • C:\Windows\SysWOW64\phmuccrf.exe
        C:\Windows\system32\phmuccrf.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2612
    • 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:2740
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1716
      • C:\Windows\SysWOW64\ezowoekbjqgqj.exe
        ezowoekbjqgqj.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2780
      • C:\Windows\SysWOW64\phmuccrf.exe
        phmuccrf.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:2776
      • C:\Windows\SysWOW64\udbiwshcrkmnpev.exe
        udbiwshcrkmnpev.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2820
    • C:\Windows\SysWOW64\ezowoekbjqgqj.exe
      ezowoekbjqgqj.exe
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2952
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ezowoekbjqgqj.exe
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2752

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

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

      20KB

      MD5

      9a126eadeba6cb61d0bbab5cec46b5d6

      SHA1

      2f262167981e7bbcfd1f8058bcc4ae214f6b6415

      SHA256

      58b9901b25b99132408495105a7b81790034fec917113a8768745c15281e77fe

      SHA512

      9a09e7e60e4d286380213f533c2e55f60452420875fa132d1a293d9508a5970fa7118b7a7448cdf06e06d94b6d8fb73d43ac657285778fee85643dd8b900564a

      Download Submit

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

      99KB

      MD5

      7fc6cf931da79ecd4267f22c6a1aefa8

      SHA1

      913682b9a75a4089cc18ec25b28e082916a6b314

      SHA256

      2672445b36639d26c7bcf277704d7f634ea7a6f4eac634027b98fb3f94062487

      SHA512

      272947751145ba29cbfecc6fe73cf5e20cf017c8c436a8af45198499e8b34c5f70215c3d5f21676a2a5de87616e85aa12b5cf0e263d57042e4221f7e12d81eaf

      Download Submit

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

      93KB

      MD5

      257f28bd5bdc2b725434b7ab570814e7

      SHA1

      972446e0f8d210c5d6f42a57a921391a236d564d

      SHA256

      d80f45a5995ba038d69dbe87f7c12827ffa2b53e79beedb0bc6ee91c10a61688

      SHA512

      c27aa91c3c3605941a1a121021c840fc7886cf27d43e9d6b2c371888a276d9dfd39135600a4f933f62dfa3d46cb6e12de6e31b3f8b939676701ff37f8cc61575

      Download Submit

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

      382KB

      MD5

      badd716c7c48a8241873d9251da496d1

      SHA1

      6bd2a072c8f64a1780fe75d983cb7b6584985c6d

      SHA256

      ad4373bfa026f66380b8ce44d6bc300d146770114fb10087019af7c616dc11d7

      SHA512

      7bf3f09216e2ba376053e668963797cd78f91119467917a84f467dd3110d6bd26592784cdf7cefd293413ff5b6dbe10a996d89627177235d9f109732c05f36c5

      Download Submit

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

      512KB

      MD5

      ceba61550dea867f41e70342e57856f2

      SHA1

      c1e317cae4e4d4e459eac50ab3481c53ed329e00

      SHA256

      8ebed6e8adcd2f00391a3e12613627e3821b2b34994404e69a8fa66a69bd7288

      SHA512

      ad601e6d6ec9655064e16b0c1a488985a5b15699ff4ff0f45bb63b056647045e9f6112386787b13fc53482b388a41fedfad18213720184edeb0c9088b9d8033b

      Download Submit

    • \Windows\SysWOW64\cxabbyootw.exe
      Filesize

      512KB

      MD5

      a554964882a91e84df117ae703b3991d

      SHA1

      e852da18975cafd762a90b341d7d769ce44d6fcd

      SHA256

      30d69cd5eb174e1ce825f01e26ebe48b37fcb65a0d1b309291db0aff57b5ad2c

      SHA512

      e619bd536955a2b55f2f6629a312f8d47568cf319045bd6f12e133433acd40e99171624db506a5736c51ad3716c1c9ab8fb3b2e78b7b37af4bed2899001e0842

      Download Submit

    • \Windows\SysWOW64\ezowoekbjqgqj.exe
      Filesize

      381KB

      MD5

      30aec9e0b33fbd99234328357879f812

      SHA1

      3c9d37139d4ccfe2b694afba9633170d0f510a92

      SHA256

      15aad0daaaeea2f1eb8d19a8999f42844b2885d6bef949f6787feba7dad46563

      SHA512

      2060f2cc8c90181dd0a9965f0ff3a94aece08c82c4a68454846f66778bc60dade3ba5ddc38be57311ff4a7bd78217b89a9cd09837eee4b5d9893277299dad415

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    • \Windows\SysWOW64\phmuccrf.exe
      Filesize

      92KB

      MD5

      6662b185f19fbf697c56a25c92de7961

      SHA1

      0df0c0df0de3724258df2549c583e3c934aca726

      SHA256

      c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

      SHA512

      c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

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    • memory/2556-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

      Download

    • memory/2740-49-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2740-50-0x000000007161D000-0x0000000071628000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2740-48-0x000000002F7E1000-0x000000002F7E2000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2740-84-0x000000007161D000-0x0000000071628000-memory.dmp

      Filesize

      44KB

      Download

    • memory/2740-105-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download