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Analysis

  • max time kernel
    150s
  • max time network
    147s
  • 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, 01:05

General

  • Target

    b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc.exe

  • Size

    737KB

  • MD5

    b735f3b3037d46ef6cc9b0b60dc404d6

  • SHA1

    e75141df6b5ccc75557054590addd4a9403f8222

  • SHA256

    b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc

  • SHA512

    d1f4d82d7f55e3258d98c162eac092cdf21e938aa284f8aeae67e8a1b2ae0161c621bc7db53ec1b77e85d8d506ebfe526c968b42301d7337525d8fa9896b06ca

  • SSDEEP

    6144:sWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N1vbMw:sz7IFjvelQypyfy7z6u7+4DvbMw

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\b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc.exe
    "C:\Users\Admin\AppData\Local\Temp\b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc.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:2840
    • 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:3316
      • 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:4836
      • 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:3060
      • 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:384
      • 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:1428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • 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

    746KB

    MD5

    a9edbf3dec25609113983cac2054d524

    SHA1

    203fe4a50ea57d2a9fa0d3066cc3fc02d8a8daac

    SHA256

    9a19848196da623f20e1e0d2e23510ad49d5276bf7969caf03b961bff4df5643

    SHA512

    3e231353cdd432c7e9ad8858dfcc58580a94b144c5788ae795bf469769b474ab87887c4dcde81d001cfc6b1fb7b5d13b463cdc3957b54ba48c8845e0fb018b6b

  • memory/384-54-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2840-1-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-2-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-5-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-6-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-18-0x0000000074F72000-0x0000000074F73000-memory.dmp

    Filesize

    4KB

  • memory/2840-19-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-20-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-31-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/2840-0-0x0000000074F72000-0x0000000074F73000-memory.dmp

    Filesize

    4KB

  • memory/3316-32-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-35-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-40-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-34-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-33-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-57-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/3316-60-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/4836-37-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/4836-38-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB

  • memory/4836-61-0x0000000074F70000-0x0000000075521000-memory.dmp

    Filesize

    5.7MB