Resubmissions

14/04/2025, 07:51

250414-jp1kfssjz9 10

14/04/2025, 07:46

250414-jl9nyssjt9 10

08/04/2025, 15:58

250408-tevasswl18 10

08/04/2025, 14:19

250408-rm2nqsvqw2 10

Analysis

  • max time kernel
    900s
  • max time network
    433s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2025, 15:58

General

  • Target

    f947bf8f07543c9beae3fdba615ba1dd.exe

  • Size

    784KB

  • MD5

    f947bf8f07543c9beae3fdba615ba1dd

  • SHA1

    abbb9d1fdca37cbb2b19e4cd275fb48a6ce49118

  • SHA256

    12386309263eabae4e6435bd13586f4964195b0fc7a5435a26eeb1d0d21b589a

  • SHA512

    a9732511b6e4e89c48de8a1305973d18be50b01eeb8572c7523399af78648d072c3f31f17de905e96d59508fcbda3d9a9b1cbaf64e799f59267f8055ec3f8a77

  • SSDEEP

    6144:FtT/Yq3v9Auky+4dusAIFB++velibxPyp/64wjOjn6cB3rcnKHZ:X6u7+487IFjvelQypyfy7cnKHZ

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\f947bf8f07543c9beae3fdba615ba1dd.exe
    "C:\Users\Admin\AppData\Local\Temp\f947bf8f07543c9beae3fdba615ba1dd.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:4508
    • C:\Users\Admin\AppData\Roaming\app.exe
      "C:\Users\Admin\AppData\Roaming\app.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4172
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\app.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4884
    • 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:2200
      • 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:1348
      • 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:3804
      • 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:32

Network

MITRE ATT&CK Enterprise v16

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

    793KB

    MD5

    c2cfffdd08daac5a443b763ae1a3849a

    SHA1

    12be038ed42d104785c0ca11a7b4255bc492b9e9

    SHA256

    ffe326e75bb65d3c53f11128239c39535646cef8e9461dcc3f082e94f158276c

    SHA512

    f9002efcb682e29a53e5b0669f6040ede762dc50800cbe05f9963f8461c16f431d0d2dae2356d31c506cad8253c44da0c513d0cf5060e7fa8cfaebdb7eaac91c

  • memory/2200-51-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-28-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-27-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/2200-24-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/3804-44-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/4172-29-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4172-52-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4172-53-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-20-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-19-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-18-0x0000000074CB2000-0x0000000074CB3000-memory.dmp

    Filesize

    4KB

  • memory/4508-6-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-26-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-5-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp

    Filesize

    4KB

  • memory/4508-2-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB

  • memory/4508-1-0x0000000074CB0000-0x0000000075261000-memory.dmp

    Filesize

    5.7MB