Malicious PDF — malware analysis report

Static analysis result for SHA-256 3216630bc8bccc5d…

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 18:48:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: cd58d731e23ba4596fe4298a71a77014 SHA-1: 96994f407c8b17cf6ef0f3c7b1da94497fcef1fa SHA-256: 3216630bc8bccc5db413679a90fed0dccf6137085ff98d84f4e4195e69eecc33
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 0.9980

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.tw/app/406889139/free-coin-master-gold-cards-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coinmaster-com_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-at-roblox-tody-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/zyrus-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/is-there-any-way-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/spin-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-prison-life-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-without-a-human-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-with-edit-this-cookie_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-ultimate-driving-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hey-you-yes-you-do-you-want-free-unlimted-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-outfits_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-25k-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-dungeons-free-download-pc_GM479516143.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
font_00_sfnt_off000033e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33E3 23088 bytes
SHA-256: d6d452997751441eb7e804a1b41bf21415f288d5857035b7ae7f18413b953509
font_01_sfnt_off000067f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F8 18244 bytes
SHA-256: fd4764d50ec251cdb3a7d4efd3c62b4862a6983ebe6024ebda45eac0790d3133

Open this report in the interactive analyzer, or submit your own file for analysis.