Analysis

  • max time kernel
    142s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12-07-2021 14:59

General

  • Target

    ebb56a6e94862c64dd204246376819f8.exe

  • Size

    933KB

  • MD5

    ebb56a6e94862c64dd204246376819f8

  • SHA1

    b4be3ca5db209dd913f9c07fa54578fcd5b45b32

  • SHA256

    f66e5f355ec3477cc1be168b9fec2f85d2c58106460d988dd96855f8c78b3fe8

  • SHA512

    e4c538a6063133485f13a1831eac86fd96eb689ba9fff8f0306402bdb6c9f013cdc8ac5a6f46fdf97397da679e1ee4c5af655582c9229192e88546e57b6e9926

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 2 IoCs
  • A310logger Executable 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe
    "C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe
      "C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe"
      2⤵
        PID:1676
      • C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe
        "C:\Users\Admin\AppData\Local\Temp\ebb56a6e94862c64dd204246376819f8.exe"
        2⤵
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:412
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exe
          3⤵
          • Executes dropped EXE
          • Checks processor information in registry
          PID:972
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exe
          3⤵
          • Executes dropped EXE
          PID:2076
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CONTACTSNET4.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CONTACTSNET4.exe
          3⤵
          • Executes dropped EXE
          PID:2148

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/412-135-0x0000000002980000-0x0000000002982000-memory.dmp

      Filesize

      8KB

    • memory/412-128-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/412-125-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/804-121-0x0000000005350000-0x0000000005351000-memory.dmp

      Filesize

      4KB

    • memory/804-118-0x0000000005150000-0x0000000005151000-memory.dmp

      Filesize

      4KB

    • memory/804-123-0x0000000007650000-0x00000000076E4000-memory.dmp

      Filesize

      592KB

    • memory/804-122-0x0000000004B30000-0x0000000004B40000-memory.dmp

      Filesize

      64KB

    • memory/804-114-0x0000000000720000-0x0000000000721000-memory.dmp

      Filesize

      4KB

    • memory/804-124-0x00000000076F0000-0x0000000007743000-memory.dmp

      Filesize

      332KB

    • memory/804-120-0x0000000005020000-0x0000000005021000-memory.dmp

      Filesize

      4KB

    • memory/804-119-0x0000000005150000-0x000000000564E000-memory.dmp

      Filesize

      5.0MB

    • memory/804-116-0x00000000050B0000-0x00000000050B1000-memory.dmp

      Filesize

      4KB

    • memory/804-117-0x0000000005650000-0x0000000005651000-memory.dmp

      Filesize

      4KB

    • memory/972-133-0x0000000000C00000-0x0000000000C01000-memory.dmp

      Filesize

      4KB

    • memory/2076-139-0x0000000000520000-0x0000000000521000-memory.dmp

      Filesize

      4KB

    • memory/2148-144-0x00000000001C0000-0x00000000001C1000-memory.dmp

      Filesize

      4KB