Analysis

  • max time kernel
    140s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 06:11

General

  • Target

    63bc6776b78545b5e68372b858dc903b.exe

  • Size

    1.0MB

  • MD5

    63bc6776b78545b5e68372b858dc903b

  • SHA1

    4df37b73a59c731986795a5fe98ea17ce02ce60c

  • SHA256

    91b1c3a1d7fc7cbaa49733458716c2f8bd61975b26804480f10888828b3065a8

  • SHA512

    3e6295a4847adfddee6380a065e28119f021d3ae0efdc33d9bbf18e9e069f8a90f4bd60450f4964945afe86709624497e89bb471ea3aa1650b7e18a078631241

  • SSDEEP

    12288:iz7IFjvelQypyfy7z6u7+4DvbMUsIGoji1:iz0FfMz6TEbMUske1

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\63bc6776b78545b5e68372b858dc903b.exe
    "C:\Users\Admin\AppData\Local\Temp\63bc6776b78545b5e68372b858dc903b.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:5380
    • 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:3816
      • 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:4360
      • 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:2128
      • 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:2628
      • 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:2532

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

    1.0MB

    MD5

    8206ffb20a6c156d4e219d614328f814

    SHA1

    1e6258d10ccecace642a9de70a2d1dd48512adda

    SHA256

    5b45ed2c9ae377a5c3d04b27f7b4fbdfc8d517b1218c0b52db406a5f25565b17

    SHA512

    36b5ea20a224b2a3fb21cca1aaf856bdec9df137779d771ee97fdd459f6da203e7f30b9b7b6ebf4fec5a215b027d4c0a398c2c969de4206f9e8e14513494a8c3

  • memory/2628-54-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/3816-33-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/3816-61-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/3816-58-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/3816-32-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/3816-34-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/3816-39-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/4360-38-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/4360-63-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/4360-62-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/4360-36-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/4360-37-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-31-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-0-0x0000000075472000-0x0000000075473000-memory.dmp

    Filesize

    4KB

  • memory/5380-5-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-2-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-1-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-19-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-6-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-20-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/5380-18-0x0000000075472000-0x0000000075473000-memory.dmp

    Filesize

    4KB