Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcf20444590eae82…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 08:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a589530336211ace47021eae0a56a8b SHA-1: ad2d687999b478a535d5ce342ab3d8898ea49718 SHA-256: fcf20444590eae827b8c3f6a63fb33d6ce9e79584db0c36105cff85c5cc3cc81
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=marvelous+designer+tutorial+pdf'. Another heuristic flags the document as a link farm, suggesting a deceptive SEO tactic. The document body, though partially corrupted, contains the URL that is likely used as a lure. No scripts were extracted, limiting the analysis of direct payload execution.

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=marvelous+designer+tutorial+pdf In PDF document text
    • http://files.triciaatpuremagicvacations.ca/uploads/1/3/1/3/131380308/4354385.pdfIn PDF document text
    • http://files.inspiringwonder.com/uploads/1/3/0/9/130969673/bulur-puwamufepuju-losodajeranux.pdfIn PDF document text
    • http://files.reneguerinart.com/uploads/1/3/1/3/131380847/4099474.pdfIn PDF document text
    • http://xamameko.seventhdaywellness.com/uploads/1/3/1/3/131383483/05170ec69e1db89.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/1/0431/8353/8331/files/kosoligaraneg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/81270329803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/95433616386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/are_you_a_team_player_give_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5321/2057/files/99085494665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/97162487346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/51946802880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2776/7206/files/dujefegepaxapolozujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/japanese_drama_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4626/4213/files/21605402224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4115/1386/files/23569378926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4845/1739/files/murexijofamakuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/kewaguzusupebusapumofo.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 5

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_off000064f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 5272 bytes
SHA-256: 2b81db0907f842070031bccb5b15f7b1e065bf89e3b4355fff0b9eb074a99a8a
font_01_sfnt_off00007702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7702 9964 bytes
SHA-256: 2131c9ef71f9bbe8203f5f7247a8eedbeeb740a9f7fc5d37be600d3201cae860

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