Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2023 14:35

General

  • Target

    4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe

  • Size

    742KB

  • MD5

    0c27d36bd2796e873a7f5a45915e85b3

  • SHA1

    e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

  • SHA256

    4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

  • SHA512

    b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

  • SSDEEP

    12288:g/MwIMg8dyQjNrrQzo6xAFix8eylAYjzFpRgeZL7+sHKd:g/SgXvQM2DdlYjvfqd

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 8 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe
    "C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe
      "C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3644
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3884
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:640
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:4716
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            5⤵
              PID:4828

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
      Filesize

      102B

      MD5

      bc6e44f26c673ae5933f8fc2c1655b0e

      SHA1

      f2f4fcfcb8a4e6ccaf9a34a7294927593dbfc57f

      SHA256

      6133dd139c15b93f1bd500322493fbece9d99be8a95d138c48b4135c9a40cf21

      SHA512

      391c3a2320332c4155fa90d5fbee1c172cde8451555e4c6a0ab0164953b8b99fc6931e32571846edcc23178de19628d29d221b2437c2c894f3f66b370ad7c59c

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
      Filesize

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      Filesize

      89KB

      MD5

      84c42d0f2c1ae761bef884638bc1eacd

      SHA1

      4353881e7f4e9c7610f4e0489183b55bb58bb574

      SHA256

      331487446653875bf1e628b797a5283e40056654f7ff328eafbe39b0304480d3

      SHA512

      43c307a38faa3a4b311597034cf75035a4434a1024d2a54e867e6a94b53b677898d71a858438d119000e872a7a6e92c5b31d277a8c207a94375ed4fd3c7beb87

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

    • memory/640-168-0x0000000000D60000-0x0000000000D70000-memory.dmp
      Filesize

      64KB

    • memory/640-154-0x0000000000D60000-0x0000000000D70000-memory.dmp
      Filesize

      64KB

    • memory/640-156-0x0000000000D60000-0x0000000000D70000-memory.dmp
      Filesize

      64KB

    • memory/640-169-0x0000000000D60000-0x0000000000D70000-memory.dmp
      Filesize

      64KB

    • memory/640-152-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/3644-138-0x00000000008C0000-0x00000000008D0000-memory.dmp
      Filesize

      64KB

    • memory/3884-155-0x0000000001620000-0x0000000001630000-memory.dmp
      Filesize

      64KB

    • memory/4220-133-0x00000000014E0000-0x00000000014F0000-memory.dmp
      Filesize

      64KB

    • memory/4220-141-0x00000000014E0000-0x00000000014F0000-memory.dmp
      Filesize

      64KB

    • memory/4716-166-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4716-162-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4716-164-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4828-170-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/4828-172-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/4828-176-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/4828-180-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/4828-179-0x0000000000460000-0x0000000000529000-memory.dmp
      Filesize

      804KB