Analysis

  • max time kernel
    142s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 15:31

General

  • Target

    Payment Copy Pdf.exe

  • Size

    420KB

  • MD5

    79111a86d3b49cfd6064e27f5f2e6d83

  • SHA1

    f61bc3418e9ca92b02f21c66af2ff94bede59f7e

  • SHA256

    b9381cede9bdb49cd74a7ee1d5fa91a3b04bb99f4d3c8be2239f5bc268df8cfe

  • SHA512

    17e04bd8663fbf88c3ae7125ff9bdca8f2ac649bf512fa0c2f0352ba57cfd3a794c58288c3977d2c1611ae97eb34ad1046a78211d1babebb911198caac475a0b

  • SSDEEP

    6144:T8LxB4D06oRE8vLVI3FPs+DoRRf+Dv4QR/VOxahjMc8Gh/DGIIrlqnh+NG1kXdfu:HJZG+3FPfCRf+JsM1MWh/DFulHPfE9V

Malware Config

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • 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 2 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Copy Pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Copy Pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe
      "C:\Users\Admin\AppData\Local\Temp\mspohdk.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe
        "C:\Users\Admin\AppData\Local\Temp\mspohdk.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\chfcjghy.dmk

    Filesize

    334KB

    MD5

    331a88ac8928b2fa36e199191bbfde5d

    SHA1

    2785d97e4f46bdde511843bd52143e8dddda9738

    SHA256

    903cb0a45409c7ccf5137f09dae81864681e850ee2cb95a20179ce5cae839d5b

    SHA512

    2419730c93471a81532180b63b416f0972169863f7bbda6e6889609a7ecec2d464f279539a379ac1e49294a4763b2c608c2ce28094e9b214311c3ef34f28cbc2

  • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • C:\Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • \Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • \Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • \Users\Admin\AppData\Local\Temp\mspohdk.exe

    Filesize

    165KB

    MD5

    9ccc32a41e68c14e82795e6c8563799f

    SHA1

    35386cb1b6903372f1fa17acd4db798037b40fa6

    SHA256

    c3efb9a8c063098c0f9a094eebe76f397a8dc74688bd34989814a3897fac5a77

    SHA512

    b293cd93b750fc385c4ddafb3b023fc7e9636a644cc4d7c9a57de5018f98a30464d1f38f3ffd9a8eb003b5f3f390025391d70269b2638ac1afa1d8992182ca08

  • memory/2332-16-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2332-9-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2692-18-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2692-17-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2692-13-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2692-21-0x0000000004670000-0x00000000046B0000-memory.dmp

    Filesize

    256KB

  • memory/2692-22-0x0000000004670000-0x00000000046B0000-memory.dmp

    Filesize

    256KB

  • memory/2692-20-0x0000000073910000-0x0000000073FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-19-0x00000000004A0000-0x00000000004E2000-memory.dmp

    Filesize

    264KB

  • memory/2692-23-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2692-24-0x0000000073910000-0x0000000073FFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-25-0x0000000004670000-0x00000000046B0000-memory.dmp

    Filesize

    256KB