Malicious PDF — malware analysis report

Static analysis result for SHA-256 788c4e31a2794154…

MALICIOUS

PDF

46.3 KB Created: 2020-08-10 20:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfe184ef22c13535803fcf7209e4db6a SHA-1: 73ff7adeffae6a228430642c0fb33c864290b14f SHA-256: 788c4e31a27941543caa1c5bc79de10bd91f2e5ea57f867754dc3d0bfc637c81
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The primary lure appears to be a 'bpsc math syllabus pdf', directing users to `https://ttraff.com/pify?keyword=bpsc+math+syllabus+pdf`. This redirector likely leads to a phishing page or malware download. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack.

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.com/pify?keyword=bpsc+math+syllabus+pdf In PDF document text
    • http://files.billbartels.com/uploads/1/3/2/6/132695543/popina.pdfIn PDF document text
    • http://files.authorrebeccaarogers.com/uploads/1/3/1/6/131637034/wakobobo_jujorufaxeso_puxul.pdfIn PDF document text
    • http://files.hopegardencounseling.com/uploads/1/3/1/4/131453823/mufomonizotoni.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/1/0429/3066/7673/files/zetinikuloxujofezezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2619/0234/files/cello_scales_and_arpeggios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/kegaxevoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8770/6774/files/wobuwuzivesagelipajopul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/6603614005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2980/6759/files/argyll_forest_park.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3224/7445/files/98149944147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/bafoxodemija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0198/4662/files/passive_voice_simple_future_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3897/3857/files/acrostichum_aureum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8930/5501/files/lego_catalogs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9544/8988/files/mario_vaquez_gallery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2807/9004/files/blues_you_can_use_book_of_guitar_chords.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_off000076b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 5588 bytes
SHA-256: 5b720a4325e924a57ab5084f601ae90ad4645aa1ce961df50c9f02a145cef3e2
font_01_sfnt_off00008996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8996 10188 bytes
SHA-256: 604c15bccdd131e2aca5f4bf6035e02925395e9f55445864e259b4e221d74b86

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