Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ab8b6340ec1448…

MALICIOUS

PDF

44.4 KB Created: 2020-08-11 00:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbcca2afab7ca86ea04139e46b3e00ba SHA-1: e428da90192e045ab15e4097a4a667a678eb6f08 SHA-256: f6ab8b6340ec1448d9203c36ba0de493cf360ca1e3ea863b01a7dbfac4003ae5
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, contains the same search query and URL found in the malicious link, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness.

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=allan+kardec+book+of+spirits+pdf In PDF document text
    • http://files.matthewgsheppard.com/uploads/1/3/0/8/130813658/2241181.pdfIn PDF document text
    • http://files.jackienorman.com/uploads/1/3/1/8/131860787/xewaguxevaxo_xarak.pdfIn PDF document text
    • http://files.phyzarre.com/uploads/1/3/0/7/130776272/6886123.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/1/0429/4357/8278/files/duluvavapodojawufasepux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5912/5153/files/8047140408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6908/6619/files/3557915145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1942/6197/files/basics_networking_interview_question_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/nadadutijezon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/52515058491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4573/2007/files/janolosuzinumuwagoguvemes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8746/2551/files/14003303865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7525/5972/files/sokuvepuzubekidiwukatorif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/43506747353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9610/5375/files/33012658772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/67438209215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/3gp_to_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/golerasuxaru.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_off0000702d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702D 5344 bytes
SHA-256: c9fc4d3290adf1192ccf37561c3b300cb5431772a6ac1e66e2f68e17bc0a8878
font_01_sfnt_off00008257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8257 10040 bytes
SHA-256: 36f18b4bcc3aaff29dd0c14d6912fb28cfb69f86da43c9733bad5a5a210ba28b

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