Overview

overview

10

Static

static

8

b9d258d2b1...1b.exe

windows7-x64

10

b9d258d2b1...1b.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    154s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2022, 03:16

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General

  • Target

    b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b.exe

  • Size

    72KB

  • MD5

    1cb5f8ae4f5fd93d509c5ffcd1a009b6

  • SHA1

    180c86862cacaee2a95e22395f561470c5233910

  • SHA256

    b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b

  • SHA512

    a9eb22587b37dbf5d59a15c7dd80a75e5a2fc79687bf9b55cd9cf6c485acdfbf7dcdca659e8dda90a1ca9a570b13744d2e24ccaa0d3d30323cb2760936e252aa

  • SSDEEP

    1536:KNCJMvSU05Ct8NwAJH7Bs3UHRazKxiH0vrb+cd8nouy8Z:KNiUQCt5Ia3SYPUvriGcoutZ

Score
10/10
evasionpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 18 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • 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
  • UAC bypass 3 TTPs 3 IoCs
    evasiontrojan
  • Windows security bypass 2 TTPs 4 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
    persistence
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 15 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
    adwarespyware
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
    stealer
  • Modifies registry class 25 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 4 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b.exe
    "C:\Users\Admin\AppData\Local\Temp\b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\E696D64614\winlogon.exe
      "C:\Users\Admin\E696D64614\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Users\Admin\E696D64614\winlogon.exe
        "C:\Users\Admin\E696D64614\winlogon.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Sets file execution options in registry
        • Windows security modification
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Modifies Control Panel
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • System policy modification
        PID:2208
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    1⤵
      PID:3532
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2036 CREDAT:17410 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4672

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
      Filesize

      471B

      MD5

      1520b1f0e8660cc8553264ce46871efd

      SHA1

      70c43f2c0b7599f782461590f8e1650a2df5dbfe

      SHA256

      8bb8dd5446da57093db31c10b4093a2378a9324f137d3eaa21ab0027e191c09e

      SHA512

      6ad8d5f620738988286981654070c9a4e2542f629f4e5245381143a2a88c98922145759ff8d90546e1a617639a7dd335ddca4aba5435fb216c01c705bc4f0be0

      Download Submit

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
      Filesize

      404B

      MD5

      c6a7158cab0afe3a70e4e9b497776023

      SHA1

      210c5da144bf053e65dd285521afc09aebd8f55d

      SHA256

      25e99d9db478cb499159055bd91be26a4e10a9da2e0da4379dc46480effc0a5a

      SHA512

      49b274538323adcc1122f5056c8b8ee72972b38f87dd41bfc907030af623d31ad1591e34ca2f0a9e8e9a5b50ea13f7d2a7f8294467cc603ca96848b910a0afd4

      Download Submit

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      72KB

      MD5

      1cb5f8ae4f5fd93d509c5ffcd1a009b6

      SHA1

      180c86862cacaee2a95e22395f561470c5233910

      SHA256

      b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b

      SHA512

      a9eb22587b37dbf5d59a15c7dd80a75e5a2fc79687bf9b55cd9cf6c485acdfbf7dcdca659e8dda90a1ca9a570b13744d2e24ccaa0d3d30323cb2760936e252aa

      Download Submit

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      72KB

      MD5

      1cb5f8ae4f5fd93d509c5ffcd1a009b6

      SHA1

      180c86862cacaee2a95e22395f561470c5233910

      SHA256

      b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b

      SHA512

      a9eb22587b37dbf5d59a15c7dd80a75e5a2fc79687bf9b55cd9cf6c485acdfbf7dcdca659e8dda90a1ca9a570b13744d2e24ccaa0d3d30323cb2760936e252aa

      Download Submit

    • C:\Users\Admin\E696D64614\winlogon.exe
      Filesize

      72KB

      MD5

      1cb5f8ae4f5fd93d509c5ffcd1a009b6

      SHA1

      180c86862cacaee2a95e22395f561470c5233910

      SHA256

      b9d258d2b195f43645c605af1c7e2d836e03c3b87320a2093d0ba40466c55c1b

      SHA512

      a9eb22587b37dbf5d59a15c7dd80a75e5a2fc79687bf9b55cd9cf6c485acdfbf7dcdca659e8dda90a1ca9a570b13744d2e24ccaa0d3d30323cb2760936e252aa

      Download Submit

    • memory/1472-134-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

      Download

    • memory/1472-138-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

      Download

    • memory/2208-144-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2208-147-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2208-148-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2208-151-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/2208-152-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

      Download

    • memory/4972-142-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

      Download

    • memory/4972-141-0x0000000000400000-0x0000000000443000-memory.dmp

      Filesize

      268KB

      Download