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Analysis

  • max time kernel
    126s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2024, 01:24

General

  • Target

    4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe

  • Size

    1.9MB

  • MD5

    219bc0b3320f5f73d684f07800c0134d

  • SHA1

    867abe30a0018c0c902f11a9edfb7c0262cdedf5

  • SHA256

    4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6

  • SHA512

    4bec94a472bdbd156f22bd4eddb44bb8b2c11910e4c12269fa73a7f71f4f290db4eb9014bf5e1ba322c97af7a195081821d35848b6ea93dce5e05a18cd6c88a4

  • SSDEEP

    49152:2RvAXWfY323knu/nL1Pv4ZWrgN4l07QfR0feTtH8FmmCCCCCvaFK3:UfrU2pSsF8FmmCCCCCL3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    162.254.34.31
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ABwuRZS5Mjh5

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 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.

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

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

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

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3380
      • C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe
        "C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3376
        • C:\Users\Admin\AppData\Local\Temp\doc-d.exe
          "C:\Users\Admin\AppData\Local\Temp\doc-d.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:3532
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 1628
            4⤵
            • Program crash
            PID:1504
      • C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe
        "C:\Users\Admin\AppData\Local\Temp\4d7489c7f5c86e43100b25314f49f3577d43ae47e090b0916578da82ec3d59e6.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:768
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3708,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4396 /prefetch:8
      1⤵
        PID:4764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3532 -ip 3532
        1⤵
          PID:812

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\doc-d.exe

          Filesize

          15KB

          MD5

          c9ef77ca68f77b6c1267a7314203c94b

          SHA1

          3c43348fdbcbb25f6a145d32c604f76844994c3f

          SHA256

          fbcdfa1a6fb23286f43c1ac9cf45dc4be64f328cf1c719abe7fb503021bf9e3d

          SHA512

          4893a117704eda88e3a8fc5e0d68c2b70da2a0fd439baae46b717ae41862f910ca4416fe2d89b7113722862a96ed746b1710f33643bf927f63a325542382baf6

        • memory/768-1106-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/768-1107-0x0000000000900000-0x0000000000940000-memory.dmp

          Filesize

          256KB

        • memory/768-1115-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/768-1114-0x0000000006660000-0x000000000666A000-memory.dmp

          Filesize

          40KB

        • memory/768-1113-0x00000000066F0000-0x0000000006782000-memory.dmp

          Filesize

          584KB

        • memory/768-1111-0x00000000065B0000-0x000000000664C000-memory.dmp

          Filesize

          624KB

        • memory/768-1110-0x00000000064C0000-0x0000000006510000-memory.dmp

          Filesize

          320KB

        • memory/768-1108-0x00000000050C0000-0x0000000005126000-memory.dmp

          Filesize

          408KB

        • memory/768-1109-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-20-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-7-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-58-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-56-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-52-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-50-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-46-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-44-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-42-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-40-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-54-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-48-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-38-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-36-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-34-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-32-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-30-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-28-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-26-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-22-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-62-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-18-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-16-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-14-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-12-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-60-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-4-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-8-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-3-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-1077-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-1078-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-1079-0x0000000005850000-0x00000000058BC000-memory.dmp

          Filesize

          432KB

        • memory/3376-1080-0x00000000057F0000-0x000000000583C000-memory.dmp

          Filesize

          304KB

        • memory/3376-1084-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-1085-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-1086-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-1099-0x0000000006A90000-0x0000000007034000-memory.dmp

          Filesize

          5.6MB

        • memory/3376-1101-0x0000000005A20000-0x0000000005A74000-memory.dmp

          Filesize

          336KB

        • memory/3376-1105-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3376-64-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-66-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-24-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-10-0x0000000005670000-0x000000000575C000-memory.dmp

          Filesize

          944KB

        • memory/3376-0-0x000000007448E000-0x000000007448F000-memory.dmp

          Filesize

          4KB

        • memory/3376-1-0x0000000000AF0000-0x0000000000CDC000-memory.dmp

          Filesize

          1.9MB

        • memory/3376-2-0x0000000005670000-0x0000000005762000-memory.dmp

          Filesize

          968KB

        • memory/3532-1112-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3532-1102-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3532-1100-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB

        • memory/3532-1098-0x0000000000080000-0x000000000008A000-memory.dmp

          Filesize

          40KB

        • memory/3532-1116-0x0000000074480000-0x0000000074C30000-memory.dmp

          Filesize

          7.7MB