Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 06:17

General

  • Target

    d57a15943ae8a9e653d5a6c6870271b8.exe

  • Size

    765KB

  • MD5

    d57a15943ae8a9e653d5a6c6870271b8

  • SHA1

    88cbb9608655aff73e6b25f480195d9075bbf90d

  • SHA256

    f41a34f1928e3fe560dbb50b78edd0c2deed9cf4a7f8be9b80a96d4c3feb6ca4

  • SHA512

    1c55d91a95176c5cfd125c28b47d8d3253782c64a67b80064f5f350ed5f2b698c17dfa8607665b9e45d892abfb05e81eb41907332e321edb2ad9847b1d2baefa

  • SSDEEP

    6144:UtT/Yq3v9Auky+4dusAIFB++velibxPyp/64wjOjn6cB3rcnKA:Q6u7+487IFjvelQypyfy7cnKA

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\d57a15943ae8a9e653d5a6c6870271b8.exe
    "C:\Users\Admin\AppData\Local\Temp\d57a15943ae8a9e653d5a6c6870271b8.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:8
    • 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:5384
      • 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:2952
      • 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:1624
      • 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:2584
      • 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:5536

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

    774KB

    MD5

    93f5bee11739ebbeffc2dc7f3798bd0f

    SHA1

    d15c3e46189cb7c87a80293e99c10dbfcc42903c

    SHA256

    d83b15d8872abf1d4ba548d5067380bd50704271d7d0b2729962e20d832ac0f7

    SHA512

    55a76fae73e987281032ee68c4dafc4ec9c9d3a959cfabaddc1862c6237b4c703918df7d6275dd756bbb76aed7a7791d7457c03b738d9ea8fb2dc949d01ec09b

  • memory/8-19-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-6-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-18-0x0000000074B22000-0x0000000074B23000-memory.dmp

    Filesize

    4KB

  • memory/8-0-0x0000000074B22000-0x0000000074B23000-memory.dmp

    Filesize

    4KB

  • memory/8-20-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-5-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-31-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-1-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/8-2-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2952-38-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2952-37-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2952-39-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2952-63-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2952-64-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-35-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-34-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-40-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-33-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-32-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-59-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5384-62-0x0000000074B20000-0x00000000750D1000-memory.dmp

    Filesize

    5.7MB

  • memory/5536-55-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB