Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2022 11:40

General

  • Target

    SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe

  • Size

    777KB

  • MD5

    ce4b52b35918a6aaae436aa29b5c9c0f

  • SHA1

    fe4a06c24070a66782678c487db865fde69dc391

  • SHA256

    3a0d8ce7111fd0d66caa1d06cb554a6e953e0f8d0b9828b53d5cc8318366e111

  • SHA512

    4782192f68234e456cddbdb2b64a0300bd1c2ba1064fb222e977c10e3896555895b355b61ec5f1982207d8b23df4c6ceccc2d14d006712433f770a9669d2dbfa

  • SSDEEP

    12288:6U4jXCnPKrDSaLvb2tRSCfJgMH5BxAaQSRFqwwgOmA:61jXMPKrDbDoRSCfGOPvlRhwkA

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5374342837:AAHF-c1HAIvNCdF89VuEdNggsL2YBlpgkSE/sendMessage?chat_id=2133303215

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

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

  • StormKitty payload 1 IoCs
  • 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.

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Basic.5.Gen.21167.21247.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4916
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1284

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1284-146-0x0000000000FA0000-0x0000000000FBA000-memory.dmp

    Filesize

    104KB

  • memory/2436-133-0x00000000058C0000-0x0000000005E64000-memory.dmp

    Filesize

    5.6MB

  • memory/2436-134-0x0000000005260000-0x00000000052F2000-memory.dmp

    Filesize

    584KB

  • memory/2436-135-0x0000000005210000-0x000000000521A000-memory.dmp

    Filesize

    40KB

  • memory/2436-136-0x0000000008B30000-0x0000000008BCC000-memory.dmp

    Filesize

    624KB

  • memory/2436-137-0x0000000008BD0000-0x0000000008C36000-memory.dmp

    Filesize

    408KB

  • memory/2436-132-0x00000000008F0000-0x00000000009B8000-memory.dmp

    Filesize

    800KB

  • memory/4916-144-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4916-141-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4916-139-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/4916-147-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB