Analysis

  • max time kernel
    120s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/09/2024, 10:20

General

  • Target

    e459805bf64ebb5e9be8ee4d147537f0N.exe

  • Size

    3.1MB

  • MD5

    e459805bf64ebb5e9be8ee4d147537f0

  • SHA1

    ec527e3af788a03bca12f3f078362f2b8e185076

  • SHA256

    668423347cf1b500a5ca874ecebdbf3229749ae0d179d69cc776fa5478bc60a4

  • SHA512

    048b7ab8c40fab722972d187b07227b07b18f814fa7c735ab5c43f266dd19d3cfb96e53b1f534be2115d9bd8178b6934e36cc868a5bade318b3f73b552b7c8bc

  • SSDEEP

    49152:+UJ6ZNXox4SgJhBsfHJq/nCFT4Mv0Pt97+:+tR4xGnCtvwC

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 4 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • UAC bypass 3 TTPs 9 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 6 IoCs
  • Drops file in Windows directory 4 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e459805bf64ebb5e9be8ee4d147537f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\e459805bf64ebb5e9be8ee4d147537f0N.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3480
    • \??\c:\windows\wininit.exe
      c:\windows\wininit.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:4528
    • \??\c:\users\admin\appdata\local\svchost.exe
      c:\users\admin\appdata\local\svchost.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • System policy modification
      PID:2256

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\RCX93B4.tmp

          Filesize

          3.1MB

          MD5

          d555c04b2df5c707c0277174b3deea5d

          SHA1

          537ffa553b9ea337a2805b03c780e12b9fa0f845

          SHA256

          990f25587d0a2f43a4a3b9c9438a049d1b43314f379bcf3be449b31337898e6e

          SHA512

          a8d2f08966daf92ea50bec82cf2db504a4840a32b1a7f2dbcbbd6afdf49a9f5e0176ec2b725c441bbb6f5a772db41fe49522e873a55756f60912f41f704ae8a9

        • \??\c:\windows\wininit.exe

          Filesize

          3.1MB

          MD5

          e459805bf64ebb5e9be8ee4d147537f0

          SHA1

          ec527e3af788a03bca12f3f078362f2b8e185076

          SHA256

          668423347cf1b500a5ca874ecebdbf3229749ae0d179d69cc776fa5478bc60a4

          SHA512

          048b7ab8c40fab722972d187b07227b07b18f814fa7c735ab5c43f266dd19d3cfb96e53b1f534be2115d9bd8178b6934e36cc868a5bade318b3f73b552b7c8bc

        • memory/2256-44-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB

        • memory/2256-39-0x0000000002750000-0x0000000002751000-memory.dmp

          Filesize

          4KB

        • memory/2256-45-0x0000000002750000-0x0000000002751000-memory.dmp

          Filesize

          4KB

        • memory/2256-55-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB

        • memory/3480-40-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB

        • memory/3480-0-0x00000000026F0000-0x00000000026F1000-memory.dmp

          Filesize

          4KB

        • memory/4528-38-0x0000000002400000-0x0000000002401000-memory.dmp

          Filesize

          4KB

        • memory/4528-42-0x0000000002400000-0x0000000002401000-memory.dmp

          Filesize

          4KB

        • memory/4528-43-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB

        • memory/4528-46-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB

        • memory/4528-54-0x0000000000400000-0x00000000007B5000-memory.dmp

          Filesize

          3.7MB