Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d737cec765d460…

MALICIOUS

PDF

64.5 KB Created: 2020-08-14 15:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c5af2204692d41f66e5e68dbaedde2f SHA-1: 44b1aa84bae765cfcc25fc9428c5e3a8943e0646 SHA-256: 17d737cec765d460226650b49c036625c516e58a486f8980a5aefec3f4bcb7c8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a lure related to 'August month current affairs pdf 2018' and embeds numerous links. Several heuristics indicate the PDF is a link farm designed to redirect users to malicious infrastructure, specifically via the URL https://ttraff.cc/pify?keyword=august+month+current+affairs+pdf+2018. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=august+month+current+affairs+pdf+2018 In PDF document text
    • http://files.wynnstan.com/uploads/1/3/1/8/131856815/4605644.pdfIn PDF document text
    • http://taramesil.divahairbydavidcarverford.com/uploads/1/3/0/8/130874330/9267798.pdfIn PDF document text
    • http://tepub.vancouver604.ca/uploads/1/3/0/8/130813765/movubesiwiwojuvarisi.pdfIn PDF document text
    • http://files.letspaintarabic.com/uploads/1/3/1/3/131379612/22ab9b14a11.pdfIn PDF document text
    • http://files.counselingservicesknoxville.com/uploads/1/3/0/8/130813769/polozixod-sozenavisovux-tufajobudozo-voluju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/zulexinoxidaweko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3111/7467/files/agisoft_photoscan_tutorial_italiano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/chief_keef_mixtape_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/77399566209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/12108530728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/fidubavibevofoxizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/ripupowipefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/kijilumadatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4090/6135/files/asking_alexandria_moving_on_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/87751202393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0803/files/renepati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/auditorium_space_requirements.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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_off0000bd0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD0D 6048 bytes
SHA-256: 92d5f0f6c095694ed8deb88b118fb9368e6939185353c8c3a7fc94a5c4ddee46
font_01_sfnt_off0000d16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16F 10276 bytes
SHA-256: dff4dc48bd54ee0ac0cdcf51e5be9c7d85e5412a73bf00129999de0439cac34e

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