Analysis

  • max time kernel
    151s
  • max time network
    67s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-05-2022 21:34

General

  • Target

    SecuriteInfo.com.W32.AIDetectNet.01.23202.exe

  • Size

    615KB

  • MD5

    e07c276f913472c39c81c9caa5ae7c2e

  • SHA1

    c086259f3bcb0166c5e8b12e2ae3f3c82fa6dc3b

  • SHA256

    d410882344230e5f0e2f98fa62f97b091be51abc83cade58585c6e62bc35a1d7

  • SHA512

    e5c699c7dbd5b33d93faff11773575946b6bc65c407989b24bdb3dda0025d59c0a68962c7cbe4ea6210212c64966f3ad42f7ed6692d6fe04373accab4e96b368

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 6 IoCs
  • A310logger Executable 9 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 2 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 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.23202.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.23202.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.23202.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.23202.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:880
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
        3⤵
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:948
        • 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:800

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\MZ.exe
    Filesize

    20KB

    MD5

    1bad0cbd09b05a21157d8255dc801778

    SHA1

    ff284bba12f011b72e20d4c9537d6c455cdbf228

    SHA256

    218073bda7a00e780704c1289d5e22ad27bb3ba11f210afa18af33a6ad5176e9

    SHA512

    4fea56812eba1f1bba17f20d06b509e2a3b4e138562e53c230d0736d596abed4a6a3e43e26936fcd6d107924c8bba41885f34901afa4fd0d37d7e4a93c9b8533

  • memory/800-87-0x0000000000000000-mapping.dmp
  • memory/880-84-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/880-59-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/880-60-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/880-62-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/880-65-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/880-66-0x000000000040246C-mapping.dmp
  • memory/880-68-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/948-73-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-82-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-75-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-76-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-77-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-78-0x0000000000412452-mapping.dmp
  • memory/948-80-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/948-85-0x0000000074550000-0x0000000074AFB000-memory.dmp
    Filesize

    5.7MB

  • memory/948-72-0x0000000000400000-0x0000000000418000-memory.dmp
    Filesize

    96KB

  • memory/2040-54-0x0000000000B70000-0x0000000000C10000-memory.dmp
    Filesize

    640KB

  • memory/2040-58-0x0000000000A60000-0x0000000000A96000-memory.dmp
    Filesize

    216KB

  • memory/2040-57-0x00000000057D0000-0x0000000005860000-memory.dmp
    Filesize

    576KB

  • memory/2040-56-0x00000000002F0000-0x0000000000300000-memory.dmp
    Filesize

    64KB

  • memory/2040-55-0x0000000075B71000-0x0000000075B73000-memory.dmp
    Filesize

    8KB