Malicious PDF — malware analysis report

Static analysis result for SHA-256 b410201cdf125000…

MALICIOUS

PDF

43.1 KB Created: 2021-04-26 13:20:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9b35d2c6f0d2fb7e106269c96b9fc108 SHA-1: c078025456333beb306c043f8f5e0d4065b95b6f SHA-256: b410201cdf1250001fa9225347cb0c141f8ecd646ca305527336f14991958870
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9855

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://netcdn.xyz/app/431946152/free-knife-cbro-roblox-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/how-to-be-all-black-in-roblox-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/amazon-free-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-maps-free-download-online.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/robux-cheat-in-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-azure-mines-cheat-scripts.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-generator-no-survey-or-download-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-human-verification-on-mobile.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-app-computer.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-bubble-gum-sim-best-pet-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-war-tycoon-cheats.pdfIn PDF document text
    • https://freerobux.cyouIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F0B 26372 bytes
SHA-256: 31b4ad4b9796f648400a7ca576d19956095e51dcf282476c91a589f00fe96b2d
font_01_sfnt_off00007a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A81 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8728 18068 bytes
SHA-256: 2ab9275472ad71af6149b5f79dc571579473a6099cd99bdca7d4cd3205aa5e87

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