Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc9b3ac9047b1724…

MALICIOUS

PDF

45.3 KB Created: 2020-08-09 20:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2ce5fbb30c5781498cbc22522f2bca0 SHA-1: 570b74b1b80dc1c8a914d7e61c3485436124687a SHA-256: cc9b3ac9047b1724f0c9ff87503c7242eac1d3124e82aad78eb0ab67b19394fb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high density of external links, many of which point to suspicious domains and are likely part of a link farm designed to manipulate search engine results. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.ru/pify?keyword=swearing+is+good+for+you+pdf+free`. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect users to malicious infrastructure.

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.ru/pify?keyword=swearing+is+good+for+you+pdf+free In PDF document text
    • http://muzijafe.balanceandneurologic.com/uploads/1/3/1/4/131438759/71cdf3a76666.pdfIn PDF document text
    • http://files.willowwildedges.com/uploads/1/3/1/8/131856443/xukopiwome-tojazelapiz-kasivezobisu-sunezurawuse.pdfIn PDF document text
    • http://sevok.mtnstatehoney.com/uploads/1/3/2/6/132695384/xabonozitomi-dutumizu-zuxakukanifuvo.pdfIn PDF document text
    • http://vebuzili.seanoneillartist.com/uploads/1/3/1/6/131606490/235f88c19.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/1/0428/9835/8432/files/84770620138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/gexubobapipozibojabudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0110/9920/files/how_to_annotate_notability.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8118/files/ayurvedic_plants_information_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/92911614180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/952339627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/70948077926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1386/4602/files/life_a_user_s_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8556/8923/files/57124560145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/lavotijoduzanurab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/31877967098.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_off000070d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 5472 bytes
SHA-256: 08c56fbf6496fff2a7442c6de2e606b74f55339680a09db5bb9c7e030f77c4b5
font_01_sfnt_off000083a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A5 10732 bytes
SHA-256: d9e6a392ef2d4946c58d1225b37b187728a630aa89372492b1fb8175ca71179b

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