Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f120a29c20e7842…

MALICIOUS

PDF

43.5 KB Created: 2021-06-13 21:18:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9007e8060c40be05dbc5c089079ebbbf SHA-1: 1a28cda51f6124f001e79a45091b908ef770b23b SHA-256: 6f120a29c20e7842fbff5d60732e0ef2fc3db1d40e69561305b59f203b0e2564
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 http://netcdn.co/app/431946152/roblox-cheat-engine-codes-2021-game-hack PDF link annotation
    • http://library.fisip.upnvj.ac.id/repository/money-cheat-roblox-tycoon_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-offer-website_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-free-knives-in-roblox-assassin-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-cheatengine_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-generator-2021-robux-hack-no-survey-updated-get_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hacks-for-iphone_GM406889139.pdfIn 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_off000048d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D4 25692 bytes
SHA-256: af5ddfd7ac9bb705792f0f789b80701fe2146efb993adfcca25dc530bbab5868
font_01_sfnt_off0000847b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x847B 19264 bytes
SHA-256: f523e7309e7c74c6a93a4df332884ac9ac2cf1983ea9c0cc19a9046ecf71ddae

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