Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-01-2025 01:39

General

  • Target

    8b93ca9fb6445b74b0f616ee70a8d8c3888c9e4b8e2c0c1dbbab083208927afb.exe

  • Size

    729KB

  • MD5

    f3399cb8b439e82e45f299b7bbd46f44

  • SHA1

    4938689820a0e0013883fd66b577f59c47125150

  • SHA256

    8b93ca9fb6445b74b0f616ee70a8d8c3888c9e4b8e2c0c1dbbab083208927afb

  • SHA512

    30045b4bda05130917e3c31bb4c8f3e36c3254eef92ffee63248f4af06da117a3af686370fed8252405c43ff7de8fcec171709b886db04ca518ef4346ba5586b

  • SSDEEP

    6144:QWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N1v9DI:Qz7IFjvelQypyfy7z6u7+4Dv9DI

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Boy12345#

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b93ca9fb6445b74b0f616ee70a8d8c3888c9e4b8e2c0c1dbbab083208927afb.exe
    "C:\Users\Admin\AppData\Local\Temp\8b93ca9fb6445b74b0f616ee70a8d8c3888c9e4b8e2c0c1dbbab083208927afb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Users\Admin\AppData\Roaming\app.exe
      "C:\Users\Admin\AppData\Roaming\app.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1260
      • C:\Users\Admin\AppData\Roaming\app.exe
        "C:\Users\Admin\AppData\Roaming\app.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:320
      • C:\Users\Admin\AppData\Roaming\My.RawFile.exe
        "C:\Users\Admin\AppData\Roaming\My.RawFile.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1368
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4208
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\aspnet_compiler.exe.log

    Filesize

    20B

    MD5

    b3ac9d09e3a47d5fd00c37e075a70ecb

    SHA1

    ad14e6d0e07b00bd10d77a06d68841b20675680b

    SHA256

    7a23c6e7ccd8811ecdf038d3a89d5c7d68ed37324bae2d4954125d9128fa9432

    SHA512

    09b609ee1061205aa45b3c954efc6c1a03c8fd6b3011ff88cf2c060e19b1d7fd51ee0cb9d02a39310125f3a66aa0146261bdee3d804f472034df711bc942e316

  • C:\Users\Admin\AppData\Roaming\My.RawFile.exe

    Filesize

    142KB

    MD5

    5a733ef0de5e31e2e4b4abb016c0f251

    SHA1

    28644040a6deac35c20fa931b5d003a97293363e

    SHA256

    a80c77ca694eca3f6629c54572aba811e64b61975c5db2ff38c8d662d12b1ce7

    SHA512

    9d09ac6b6a560643cac08345ab6ef8578011b11be7d4821d7aa1b3d76f2801d30cb4d206a4ff9335f0ece5cfa2ec8258754b2481102eac3da064e5005f7ffba9

  • C:\Users\Admin\AppData\Roaming\app.exe

    Filesize

    738KB

    MD5

    ef002444b808bcbebffd1825d2e9e869

    SHA1

    2fb9e3327cb18a4c504d177c43e31b46274d14f1

    SHA256

    c88208199353fbacb0cf9286bef9e2cdedcaae269b3505e93ba2d955b794e7e3

    SHA512

    708d7fe994429942e4e699430be78bc55a3459a7c59451f7f5927778e25ee23734c162dc33424ce06a473a72f508f775caf0ca47b8c42976bcb5379b2fce7e30

  • memory/320-62-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/320-63-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/320-39-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/320-38-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/1260-61-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/1260-40-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/1260-36-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/1260-33-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/1260-35-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/3696-56-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/4624-19-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-34-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-32-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-21-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-20-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-0-0x0000000075182000-0x0000000075183000-memory.dmp

    Filesize

    4KB

  • memory/4624-18-0x0000000075182000-0x0000000075183000-memory.dmp

    Filesize

    4KB

  • memory/4624-6-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-5-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-2-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB

  • memory/4624-1-0x0000000075180000-0x0000000075731000-memory.dmp

    Filesize

    5.7MB