Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbde65f00372cbab…

MALICIOUS

PDF

46.9 KB Created: 2021-04-09 01:53:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e510ee21807d504bd6ef4ad83ce3c3ef SHA-1: 99661a886c215714ae6f4993737f6edc5b19f078 SHA-256: dbde65f00372cbabbd7868fba7c7f77ab2c88f08e97d65d09e31aa552f804dd3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure related to game hacks, specifically for Roblox, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate it's designed to redirect users to potentially harmful content. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a social engineering attack to trick users into downloading further malware or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gaminggenerator.org/app/431946152/como-ser-hacker-en-roblox-pc-game-hack PDF link annotation
    • https://www.extremeoutdoorleague.co.za/images/how-can-u-get-robux-for-free.pdfIn PDF document text
    • https://www.fhccu.com/images/roblox-hack-robux-2021-android-ios-roblox-cheat.pdfIn PDF document text
    • http://traveltrucks.com.au/images/how-to-get-free-robux-ant.pdfIn PDF document text
    • https://www.najeebqasmi.com/images/hacking-coolrichytimemax-in-roblox-youtube.pdfIn PDF document text
    • https://helsoft.se/images/utiliser-cheat-engine-sur-roblox.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-de-roblox.pdfIn PDF document text
    • http://pia2000.net/images/hack-roblox-dragon-ball-rage-2021.pdfIn PDF document text
    • http://moto98.com/images/free-robux-for-roblox-2021.pdfIn PDF document text
    • http://racunari.in.rs/images/como-hackear-roblox-accounts.pdfIn PDF document text
    • https://www.knxuk.org/images/how-to-get-a-gamepass-for-free-in-roblox.pdfIn PDF document text
    • http://maxvanberchem.org/images/maiu-maiu-roblox-hack-rc7-scrpt.pdfIn PDF document text
    • http://livsgnistans.se/images/roblox-black-pants-red-shoes-free.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/free-robux-no-human-vervication.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-robux-free-2021.pdfIn PDF document text
    • http://restarmenia.com/images/free-gift-card-roblox-giveaway-live.pdfIn PDF document text
    • http://www.campiresine.it/images/boost9-com-roblox-hack.pdfIn PDF document text
    • http://www.herricht.at/images/wie-kann-man-free-robux-kriegen.pdfIn PDF document text
    • https://treeconsult.de/images/free-admin-commands-roblox-download.pdfIn PDF document text
    • http://stackideas.com/images/how-to-get-free-minigun-in-roblox-human-vs-zombies.pdfIn PDF document text
    • http://cleanteclogistics.com/images/watch-ads-to-earn-free-robux.pdfIn PDF document text
    • https://www.fhccu.com/images/roblox-hack-robux-2021-In PDF document text
    • https://www.najeebqasmi.com/images/hacking-In PDF document text
    • http://leagueforwomenrights.gr/images/free-In PDF document text
    • http://moto98.com/images/free-robux-for-roblox-In PDF document text
    • https://www.knxuk.org/images/how-to-get-a-gamepass-for-free-in-In PDF document text
    • http://livsgnistans.se/images/roblox-black-pants-red-shoes-In PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-robux-In PDF document text
    • http://www.campiresine.it/images/boost9-com-roblox-In PDF document text
    • https://treeconsult.de/images/free-admin-commands-roblox-In PDF document text
    • http://cleanteclogistics.com/images/watch-In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000599e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x599E 26732 bytes
SHA-256: b5ea7edea748eefad3eefd7a38b9513d24e413e86c2790c93fdc72f9683e49b7
font_01_sfnt_off000095f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95F4 18128 bytes
SHA-256: ca22afb53bf33b679b07787e06ddb106151376ede7ebd1b26e39ba7ed9d9b1eb

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