Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c7342d613180f48…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 03:56:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 25652daab652f8072bfb850dfbacdb1c SHA-1: c2c8b36dca4108359ed7cb6da7a6004e91bb4dc5 SHA-256: 5c7342d613180f486677f6725d756a0e8c685daa37e84cf4766017469eee1857
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/479516143/free-multiplayer-minecraft-server-game-hack PDF link annotation
    • http://knjiznica-oroslavje.hr/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/hack-strucid-roblox_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/make-robux_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://knjiznica-oroslavje.hr/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/roblox-cheats-mac_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://www.knjiznica-oroslavje.hr/files/free-roblox-boombox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E87 23124 bytes
SHA-256: e0038c2d89c657789ba137fb67640683be0af877c93dd3c29d236e69bdbbad23
font_01_sfnt_off000062ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AE 18540 bytes
SHA-256: bd2c9319811100d4a63aefc818d44f48b7bf37d9ac2ac9e0807df4b94dfa85a2

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