Analysis

  • max time kernel
    150s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-07-2021 07:03

General

  • Target

    10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe

  • Size

    897KB

  • MD5

    6f260afdc367ce34cc44584c35ef7da1

  • SHA1

    b9c1be8368b9947a85e70ddee94b35c8dde43771

  • SHA256

    9e4b6c3beacf15788e4ab0c3dc67962de4e1181854ea65124ba7231ff88730dc

  • SHA512

    9ab7f18ec6bda4eb488fbf54dfb44d4554e168961559559f32d8ebbcb4af7e7cd4ea48d58a9c3206033724004ebafc71bcb04a8c9b5edd16fd4256e4442bccbb

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty Payload 4 IoCs
  • A310logger Executable 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe
    "C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3692
    • C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe
      "C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe"
      2⤵
        PID:2908
      • C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe
        "C:\Users\Admin\AppData\Local\Temp\10303640_APMC-TRN-C0001-Stability_Calculation_Rev1.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3952
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
          3⤵
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2292
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3052
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
          3⤵
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2592
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:856
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
          3⤵
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1348
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/856-143-0x0000000002BE0000-0x0000000002BE2000-memory.dmp

      Filesize

      8KB

    • memory/1348-146-0x0000000002A70000-0x0000000002A71000-memory.dmp

      Filesize

      4KB

    • memory/2292-128-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/2292-130-0x0000000002820000-0x0000000002821000-memory.dmp

      Filesize

      4KB

    • memory/2592-138-0x0000000002AD0000-0x0000000002AD1000-memory.dmp

      Filesize

      4KB

    • memory/2804-150-0x0000000000830000-0x0000000000832000-memory.dmp

      Filesize

      8KB

    • memory/3052-134-0x0000000002EC0000-0x0000000002EC2000-memory.dmp

      Filesize

      8KB

    • memory/3692-120-0x0000000004A60000-0x0000000004A61000-memory.dmp

      Filesize

      4KB

    • memory/3692-119-0x0000000004B80000-0x0000000004B81000-memory.dmp

      Filesize

      4KB

    • memory/3692-126-0x0000000004B80000-0x000000000507E000-memory.dmp

      Filesize

      5.0MB

    • memory/3692-116-0x0000000005080000-0x0000000005081000-memory.dmp

      Filesize

      4KB

    • memory/3692-122-0x0000000004B60000-0x0000000004B6F000-memory.dmp

      Filesize

      60KB

    • memory/3692-114-0x0000000000180000-0x0000000000181000-memory.dmp

      Filesize

      4KB

    • memory/3692-121-0x0000000004D40000-0x0000000004DB1000-memory.dmp

      Filesize

      452KB

    • memory/3692-118-0x0000000004C20000-0x0000000004C21000-memory.dmp

      Filesize

      4KB

    • memory/3692-117-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

      Filesize

      4KB

    • memory/3952-123-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB