Overview

overview

10

Static

static

5

a6bb677d4d...fc.exe

windows7-x64

10

a6bb677d4d...fc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 02:37

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General

  • Target

    a6bb677d4d9db9b230a8f5e88c7499fc.exe

  • Size

    512KB

  • MD5

    a6bb677d4d9db9b230a8f5e88c7499fc

  • SHA1

    52ad1f673c7d6b08ed1fa4a60ceb38763d8e1571

  • SHA256

    3676fdebd3cfb81c20f92e9762c35c223d0ca62e8d6cc83f9c399a1411ac0a80

  • SHA512

    eb624a66a8f003ad3d5140e6c8701ac29dbc58c5e4a98c067e667c657abfcc50b0cfcc8fd3312b744a3e2dddb4b71efa037d22683aa378091dcfef0a8c3418ec

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6J:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm56

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
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • 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 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 4 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 AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 36 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6bb677d4d9db9b230a8f5e88c7499fc.exe
    "C:\Users\Admin\AppData\Local\Temp\a6bb677d4d9db9b230a8f5e88c7499fc.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:2168
    • C:\Windows\SysWOW64\trwhhiwntu.exe
      trwhhiwntu.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:2684
      • C:\Windows\SysWOW64\luqyreuz.exe
        C:\Windows\system32\luqyreuz.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:2672
    • C:\Windows\SysWOW64\mrrjastjefdxfbm.exe
      mrrjastjefdxfbm.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2752
    • C:\Windows\SysWOW64\luqyreuz.exe
      luqyreuz.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:2640
    • C:\Windows\SysWOW64\ufiodxdasycyc.exe
      ufiodxdasycyc.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2256
    • 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:2528
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:2924
    • C:\Windows\explorer.exe
      explorer.exe
      1⤵
      • Modifies Installed Components in the registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1928

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe
      Filesize

      512KB

      MD5

      87a57cdef8911fec19b44d3b7608b43a

      SHA1

      ad6000c91d51e94f4837f7c94204b77c470ff2f7

      SHA256

      8b4cb5cc9983aedca602dae447061618aedea1796ba9523865cb58d098d2e281

      SHA512

      c13d8bc1ff01e0c22dec263aa1ef26d9d1bfcd878ba3bab785e56303871fc7d470817469005d4749e011596a711f13937a0bab08588a0a54148057da2dbc56e8

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

      512KB

      MD5

      b82cb83100f2b662b4bc5623d1f92263

      SHA1

      53ea91e61a71afbae34f01c6e3f1426b4d930e7c

      SHA256

      4a9ef88d4522e515dba346823cb5849abd9a8efb6272e44cb7138fc86b3cea68

      SHA512

      c286cfb0c64a0a37e011c452584f9ad07cd91b47248e12c0bf3f91ce59e4cb1c7d409e47d0dac893027af438d8f3d6def1d7b6eb71927e15247d6092829f67e1

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    • C:\Windows\mydoc.rtf
      Filesize

      223B

      MD5

      06604e5941c126e2e7be02c5cd9f62ec

      SHA1

      4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

      SHA256

      85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

      SHA512

      803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

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    • \Windows\SysWOW64\luqyreuz.exe
      Filesize

      512KB

      MD5

      8efc1be6f2be578aae5164853143a421

      SHA1

      c817cccc937ceb52b8f2f202fe39d854249cc15f

      SHA256

      5cc260ed621a0ae276ccc7258c5ee9c9443f4c47a484375a6b38f733de107308

      SHA512

      2ccf9bb7e33b3263178eb14d40ebe4003fb27b7f59e6e82a630270b0cc4695d4b84b9fdbf220c0a838dd351c9e64be17b408b7e526c47aad6774251ff5487668

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    • \Windows\SysWOW64\trwhhiwntu.exe
      Filesize

      512KB

      MD5

      81d54647f7093882516304ca61e96bbd

      SHA1

      951326d180b50049200390fa2b26d39e75589e63

      SHA256

      f38b1d570ca1468111ff13a8c355c20ebe429f3e03cb4320f30b2e510bb0478e

      SHA512

      3968fa4b1f68c7a433e6e98fbda0a1e091fad39e9c636ead92cd39ec7d671dec332094a3c9565db9acb25b0e82bfbe804cef6fe9aeb663e0da0c2ce75e6d7139

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    • \Windows\SysWOW64\ufiodxdasycyc.exe
      Filesize

      512KB

      MD5

      3bc7f81aa732e7bde2a57a1a34d13f0c

      SHA1

      1d02c987cf5dc711dc901497dc683c4536f98664

      SHA256

      c2986b17f899491156185e929be4bc3b8ec72ca73f25ef5b2fd0f6a7436e5729

      SHA512

      5fdb112648b032a0a729b887a1936c6c83156240ac56cb034cf37886515b1b61cf87106cde3e425d08fb693c0203f216ddfa40a614fdf68d187f9cc33e5acb85

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    • memory/1928-79-0x0000000003C60000-0x0000000003C70000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2168-0-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

      Download

    • memory/2528-45-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

      Download