Analysis

  • max time kernel
    124s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2024 07:08

General

  • Target

    offer.pdf.exe

  • Size

    1.1MB

  • MD5

    ddd764f5db42b068e1d14bdb8e89e32e

  • SHA1

    8bea1272325ac17dabd0f820e2e822035222bc13

  • SHA256

    80901284eab8de2631adda7fd1f089640c1c5891f30a2c2de8c77c293d3a5e11

  • SHA512

    b938f0d6a8d2a4f933c659576b711fa5691f203161ad2e8b2c2f96fb225446f131d2b2afb0d4964cccfa03e5e6247b763d2d82f19d6ff813cb0cbef09ea365db

  • SSDEEP

    12288:Tu9e78iSqcgdCXBeOe/Zyt//EFz6s1x5/MctTWlMXH8TxoRDM02E3s4TmO9CwXtH:+u8gcRcZyFMF6spxJC/TyRoVE3b

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.awaratrendz.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Q&N.)e{R7G^]

Extracted

Family

vipkeylogger

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4336
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3160
    • C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"
      2⤵
        PID:1304
      • C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3192

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\offer.pdf.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ffwsffuy.uuu.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/3160-54-0x00000000072B0000-0x00000000072C1000-memory.dmp

      Filesize

      68KB

    • memory/3160-36-0x0000000005DC0000-0x0000000005E0C000-memory.dmp

      Filesize

      304KB

    • memory/3160-37-0x0000000006D30000-0x0000000006D62000-memory.dmp

      Filesize

      200KB

    • memory/3160-55-0x00000000072E0000-0x00000000072EE000-memory.dmp

      Filesize

      56KB

    • memory/3160-16-0x0000000002460000-0x0000000002496000-memory.dmp

      Filesize

      216KB

    • memory/3160-53-0x0000000007330000-0x00000000073C6000-memory.dmp

      Filesize

      600KB

    • memory/3160-52-0x0000000007120000-0x000000000712A000-memory.dmp

      Filesize

      40KB

    • memory/3160-17-0x0000000004F60000-0x0000000005588000-memory.dmp

      Filesize

      6.2MB

    • memory/3160-51-0x00000000070B0000-0x00000000070CA000-memory.dmp

      Filesize

      104KB

    • memory/3160-49-0x0000000006D70000-0x0000000006E13000-memory.dmp

      Filesize

      652KB

    • memory/3160-58-0x00000000073D0000-0x00000000073D8000-memory.dmp

      Filesize

      32KB

    • memory/3160-48-0x0000000006CF0000-0x0000000006D0E000-memory.dmp

      Filesize

      120KB

    • memory/3160-56-0x00000000072F0000-0x0000000007304000-memory.dmp

      Filesize

      80KB

    • memory/3160-57-0x00000000073F0000-0x000000000740A000-memory.dmp

      Filesize

      104KB

    • memory/3160-50-0x00000000076F0000-0x0000000007D6A000-memory.dmp

      Filesize

      6.5MB

    • memory/3160-18-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3160-21-0x0000000004DD0000-0x0000000004E36000-memory.dmp

      Filesize

      408KB

    • memory/3160-20-0x0000000004D60000-0x0000000004DC6000-memory.dmp

      Filesize

      408KB

    • memory/3160-19-0x0000000004CC0000-0x0000000004CE2000-memory.dmp

      Filesize

      136KB

    • memory/3160-22-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3160-38-0x00000000704B0000-0x00000000704FC000-memory.dmp

      Filesize

      304KB

    • memory/3160-24-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3160-25-0x0000000005790000-0x0000000005AE4000-memory.dmp

      Filesize

      3.3MB

    • memory/3160-61-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3160-35-0x0000000005D80000-0x0000000005D9E000-memory.dmp

      Filesize

      120KB

    • memory/3192-11-0x0000000000400000-0x000000000044A000-memory.dmp

      Filesize

      296KB

    • memory/3192-23-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-66-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-14-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-65-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-64-0x0000000006DF0000-0x000000000731C000-memory.dmp

      Filesize

      5.2MB

    • memory/3192-63-0x0000000006590000-0x00000000065E0000-memory.dmp

      Filesize

      320KB

    • memory/3192-62-0x00000000066F0000-0x00000000068B2000-memory.dmp

      Filesize

      1.8MB

    • memory/4336-6-0x0000000006340000-0x000000000635E000-memory.dmp

      Filesize

      120KB

    • memory/4336-7-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

      Filesize

      4KB

    • memory/4336-5-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/4336-4-0x0000000004DF0000-0x0000000004DFA000-memory.dmp

      Filesize

      40KB

    • memory/4336-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp

      Filesize

      584KB

    • memory/4336-2-0x00000000051E0000-0x0000000005784000-memory.dmp

      Filesize

      5.6MB

    • memory/4336-1-0x0000000000260000-0x000000000037C000-memory.dmp

      Filesize

      1.1MB

    • memory/4336-8-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB

    • memory/4336-9-0x0000000000D20000-0x0000000000DAC000-memory.dmp

      Filesize

      560KB

    • memory/4336-10-0x000000000BCF0000-0x000000000BD8C000-memory.dmp

      Filesize

      624KB

    • memory/4336-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

      Filesize

      4KB

    • memory/4336-15-0x0000000074A80000-0x0000000075230000-memory.dmp

      Filesize

      7.7MB