Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e2bdb76d4acfae…

MALICIOUS

PDF

41.1 KB Created: 2020-08-08 08:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a9e1edb08531ab3105b5dea04490d2b SHA-1: 7250028a3af015a18a8d2298c6ac6b0f950e16c3 SHA-256: d6e2bdb76d4acfae0f157088109d62c60479797b54c060cf97d29894b5d5f3ae
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be largely obfuscated or corrupted, but the presence of the URL 'https://ttraff.ru/pify?keyword=blood+bank+guy+pdf' and the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' suggest the primary intent is to redirect the user 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=blood+bank+guy+pdf In PDF document text
    • http://files.meadow-of-arts.com/uploads/1/3/1/3/131379085/189e537db1be.pdfIn PDF document text
    • http://files.authorkmdylan.com/uploads/1/3/1/4/131455903/3664819.pdfIn PDF document text
    • http://files.brothersinthewild.com/uploads/1/3/0/7/130739802/lokewavudukodig.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/1/0428/6060/9692/files/zatubogiguduwujebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/67343449252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/82318941214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0874/3835/files/understandable_statistics_11th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/fujigarorajudowunuzerezos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/30519133329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/livapolegejopexugug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5955/8053/files/90690824469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5575/7977/files/administrative_procedures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6743/1320/files/73319475985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4071/9516/files/fudodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0691/7799/files/the_adventures_of_tom_sawyer_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2749/6087/files/badimalepiwuripafugefuge.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_off00006258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6258 5288 bytes
SHA-256: 1081a51a49224de8034109570b989337e9390f919b42afa5298b4dc3b848756e
font_01_sfnt_off0000747d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747D 10352 bytes
SHA-256: 49c44f8f6fa0139c032ce50d623037788e9001cfd490e48fc571cb5866bea0e7

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