Malicious PDF — malware analysis report

Static analysis result for SHA-256 713355a4a73323d5…

MALICIOUS

PDF

45.7 KB Created: 2021-04-08 08:19:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f91cd2262896844a025e0763bd367cf9 SHA-1: 4f9dd943a89da381ba5be791b13fab74d50646ea SHA-256: 713355a4a73323d5c37bf2cc920071ff6c51205241b850f924ddae5dcc13374a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-risk heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though partially corrupted, includes the same URL and other URLs that appear to be part of a phishing or malware distribution scheme. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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/my-roblox-girlfriend-cheated-on-me-game-hack PDF link annotation
    • http://mohacad.com/images/free-roblox-site-whit-free-robux.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-free-robux-hack-no-download.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/744-roblox-hack.pdfIn PDF document text
    • http://cmme.it/images/roblox-mad-city-cheat-engine.pdfIn PDF document text
    • http://escolaarboc.cat/images/how-to-hack-roblox-on-skywars.pdfIn PDF document text
    • https://www.tartineartisanal.com/images/how-to-get-stuff-for-free-on-roblox-catalog.pdfIn PDF document text
    • http://urezerv.com/images/obby-for-free-robux.pdfIn PDF document text
    • https://meltonschool.org/images/roblox-games-for-free-for-you-to-play.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/free-clothes-in-roblox-2021.pdfIn PDF document text
    • http://magnipsor.su/images/check-crashed-roblox-hack.pdfIn PDF document text
    • http://prohsa.com/images/free-robux-limiteds-comlu-com.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-exploits-with-no-key.pdfIn PDF document text
    • https://estalagemmonteverde.com.br/images/roblox-t-shirt-maker-free.pdfIn PDF document text
    • http://adues.org/images/roblox-cheat-codes-for-gear.pdfIn PDF document text
    • http://www.bayrischestaferl.de/images/roblox-accont-hacking.pdfIn PDF document text
    • https://scraperite.com/images/robux-cheap-cheat.pdfIn PDF document text
    • http://itbits.ie/images/how-to-et-free-robux-in-a-roblo-game.pdfIn PDF document text
    • http://buvis.is/images/free-robux-no-hack-or-cheat.pdfIn PDF document text
    • https://pemadamapi.net/images/free-camera-roblox-script.pdfIn PDF document text
    • http://mohacad.com/images/free-roblox-site-whit-free-In PDF document text
    • https://pompesfunebresleveque.fr/images/free-clothes-in-roblox-In PDF document text
    • https://estalagemmonteverde.com.br/images/roblox-t-shirt-maker-In PDF document text
    • http://buvis.is/images/free-In PDF document text
    • http://www.cbgp.upm.es/images/roblox-robux-hack-download-no-survey-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000484c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x484C 25728 bytes
SHA-256: 7551b63bdf1f90b787300d21547e43e3a586fde61ddb08b82322f160b14b4d58
font_01_sfnt_off00008313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8313 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008fbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBB 18508 bytes
SHA-256: 5cce060118ad0e043dccc14043fb517c735f3c6cb3cf51c07816ab64b819ba51