Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14-07-2021 05:56

General

  • Target

    OUTGOING PAYMENT MT103_WA00049739_______________________________jpg.exe

  • Size

    1.0MB

  • MD5

    014ab849062b35196cef62addaa5335a

  • SHA1

    cc7ea1ca876a4ef7d6b2e58b1175fa3816e54ed5

  • SHA256

    444482bde8f2bb85add3dc622db0c1a7a6974a78be2039ee8d08cc32af48f951

  • SHA512

    fc73eddd6a4aaebea9421e9b848a7b890c3d7e5fd7708a743d479648e5ec6d43be45baf1ab641dba0ad531e5a3021d4a445fa26f1e982d58df5f206fa0b09902

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 3 IoCs
  • A310logger Executable 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Modifies registry class 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OUTGOING PAYMENT MT103_WA00049739_______________________________jpg.exe
    "C:\Users\Admin\AppData\Local\Temp\OUTGOING PAYMENT MT103_WA00049739_______________________________jpg.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Regazm
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Regazm"
        3⤵
        • Suspicious use of SetWindowsHookEx
        PID:1468
    • C:\Users\Admin\AppData\Local\Temp\OUTGOING PAYMENT MT103_WA00049739_______________________________jpg.exe
      "C:\Users\Admin\AppData\Local\Temp\OUTGOING PAYMENT MT103_WA00049739_______________________________jpg.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:928
      • 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:1692

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/928-66-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/928-73-0x00000000007B0000-0x00000000007B2000-memory.dmp

    Filesize

    8KB

  • memory/928-72-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/1692-78-0x0000000000D70000-0x0000000000D71000-memory.dmp

    Filesize

    4KB

  • memory/1788-68-0x00000000767B1000-0x00000000767B3000-memory.dmp

    Filesize

    8KB

  • memory/1988-59-0x0000000000C80000-0x0000000000C81000-memory.dmp

    Filesize

    4KB

  • memory/1988-64-0x0000000004950000-0x00000000049C4000-memory.dmp

    Filesize

    464KB

  • memory/1988-63-0x0000000008020000-0x00000000080D8000-memory.dmp

    Filesize

    736KB

  • memory/1988-62-0x0000000000460000-0x0000000000470000-memory.dmp

    Filesize

    64KB

  • memory/1988-61-0x0000000004A00000-0x0000000004A01000-memory.dmp

    Filesize

    4KB