Analysis

  • max time kernel
    123s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    05-07-2023 11:46

General

  • Target

    REQUESTFORQUOTEexe.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 5 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 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 22 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOTEexe.exe
    "C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOTEexe.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUESTFORQUOTEexe.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\REQUESTFORQUOTEexe.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2164
      • 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:1664
        • 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:2848

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\REQUESTFORQUOTEexe.exe

    Filesize

    851KB

    MD5

    4a37626b4c816a2826515fd5a70d40b5

    SHA1

    58e257ded42eed23b33eaef8cddec0ddbdf9c1b0

    SHA256

    a0c21b1bd57a63427bee62f2d29d31bf5b9ba7f3700a458273ea8ff3a4734324

    SHA512

    6f58b6af0f2404a2784977b0d322984bcd35726b85ac01db8a150ac347809a03a7b10f2fcdd0b41137744d602e2c05521e9d01b6bfd9982e3518271c77a70932

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\REQUESTFORQUOTEexe.exe

    Filesize

    851KB

    MD5

    4a37626b4c816a2826515fd5a70d40b5

    SHA1

    58e257ded42eed23b33eaef8cddec0ddbdf9c1b0

    SHA256

    a0c21b1bd57a63427bee62f2d29d31bf5b9ba7f3700a458273ea8ff3a4734324

    SHA512

    6f58b6af0f2404a2784977b0d322984bcd35726b85ac01db8a150ac347809a03a7b10f2fcdd0b41137744d602e2c05521e9d01b6bfd9982e3518271c77a70932

  • memory/1664-75-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1664-162-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-145-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-82-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-70-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-72-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-71-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1664-76-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2164-68-0x0000000004970000-0x00000000049B0000-memory.dmp

    Filesize

    256KB

  • memory/2164-69-0x0000000000600000-0x0000000000610000-memory.dmp

    Filesize

    64KB

  • memory/2164-67-0x0000000004970000-0x00000000049B0000-memory.dmp

    Filesize

    256KB

  • memory/2164-65-0x00000000049B0000-0x0000000004A6C000-memory.dmp

    Filesize

    752KB

  • memory/2164-66-0x00000000048B0000-0x000000000496A000-memory.dmp

    Filesize

    744KB

  • memory/2848-117-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/2848-115-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/2848-113-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/2848-112-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2848-160-0x0000000004E10000-0x0000000004E50000-memory.dmp

    Filesize

    256KB

  • memory/2848-111-0x0000000000090000-0x00000000000AA000-memory.dmp

    Filesize

    104KB

  • memory/3036-161-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3036-163-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3036-164-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3036-166-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB