Analysis

  • max time kernel
    150s
  • max time network
    11s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-07-2023 04:00

General

  • Target

    REQUEST FOR QUOTE.exe

  • Size

    891KB

  • MD5

    164a1a27b7b433966e4baacfd59353cc

  • SHA1

    7d1593f5ccecd3b714b47cce75b66d477b2a6025

  • SHA256

    9e375d13756195da6c9c580e435042ff8105ef2c2e83b0270d98f3fc387e6ce8

  • SHA512

    0a5df388544611698fe7398ee1227e4f8c25b772fc041acdc5e9f35866efd48f268519d8089f9b0b1c4fdeee54d01b719d1c839ac3194d80f479f9d4f03f9a20

  • SSDEEP

    12288:/Lk70TnvjcJU26d4PjQGeEBO7QMPTzAwO7DiXH8EjLvQcVnHYe0ScK1hk:zk70TrcJUL/GeEBO7QMyDMHnvGBSpc

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Detect Neshta payload 8 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • StormKitty

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

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • 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
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTE.exe
    "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTE.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUEST FOR QUOTE.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\REQUEST FOR QUOTE.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4796
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          4⤵
          • Accesses Microsoft Outlook profiles
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:3724

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    8ffc3bdf4a1903d9e28b99d1643fc9c7

    SHA1

    919ba8594db0ae245a8abd80f9f3698826fc6fe5

    SHA256

    8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

    SHA512

    0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

  • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUEST FOR QUOTE.exe

    Filesize

    851KB

    MD5

    4a37626b4c816a2826515fd5a70d40b5

    SHA1

    58e257ded42eed23b33eaef8cddec0ddbdf9c1b0

    SHA256

    a0c21b1bd57a63427bee62f2d29d31bf5b9ba7f3700a458273ea8ff3a4734324

    SHA512

    6f58b6af0f2404a2784977b0d322984bcd35726b85ac01db8a150ac347809a03a7b10f2fcdd0b41137744d602e2c05521e9d01b6bfd9982e3518271c77a70932

  • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUEST FOR QUOTE.exe

    Filesize

    851KB

    MD5

    4a37626b4c816a2826515fd5a70d40b5

    SHA1

    58e257ded42eed23b33eaef8cddec0ddbdf9c1b0

    SHA256

    a0c21b1bd57a63427bee62f2d29d31bf5b9ba7f3700a458273ea8ff3a4734324

    SHA512

    6f58b6af0f2404a2784977b0d322984bcd35726b85ac01db8a150ac347809a03a7b10f2fcdd0b41137744d602e2c05521e9d01b6bfd9982e3518271c77a70932

  • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUEST FOR QUOTE.exe

    Filesize

    851KB

    MD5

    4a37626b4c816a2826515fd5a70d40b5

    SHA1

    58e257ded42eed23b33eaef8cddec0ddbdf9c1b0

    SHA256

    a0c21b1bd57a63427bee62f2d29d31bf5b9ba7f3700a458273ea8ff3a4734324

    SHA512

    6f58b6af0f2404a2784977b0d322984bcd35726b85ac01db8a150ac347809a03a7b10f2fcdd0b41137744d602e2c05521e9d01b6bfd9982e3518271c77a70932

  • memory/852-146-0x0000000004E70000-0x0000000005414000-memory.dmp

    Filesize

    5.6MB

  • memory/852-147-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

    Filesize

    64KB

  • memory/852-148-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

    Filesize

    64KB

  • memory/852-149-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

    Filesize

    64KB

  • memory/3724-158-0x0000000004C50000-0x0000000004CB6000-memory.dmp

    Filesize

    408KB

  • memory/3724-224-0x0000000005630000-0x00000000056CC000-memory.dmp

    Filesize

    624KB

  • memory/3724-156-0x0000000000800000-0x000000000081A000-memory.dmp

    Filesize

    104KB

  • memory/4796-157-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4796-153-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4796-150-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4796-235-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4920-234-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-236-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-237-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-238-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-239-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-240-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4920-242-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB