Malicious PDF — malware analysis report

Static analysis result for SHA-256 3814df9b28cce3d2…

MALICIOUS

PDF

36.2 KB Created: 2020-08-02 19:07:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 560db99596b561eeffa60bd50cd99a33 SHA-1: 688d9a487e9316d08edb084120feade87f77abba SHA-256: 3814df9b28cce3d21a6afffbb23505b0fb0a80e2caa01382fe43e4ab6ad9c07e
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious URL is https://ttraff.ru/pify?keyword=pathfinder+core+rule+book+pdf, which likely serves as a lure to download further malicious content.

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=pathfinder+core+rule+book+pdf In PDF document text
    • http://files.dmrproductions.online/uploads/1/3/1/4/131437593/8fa0f1c04480411.pdfIn PDF document text
    • http://files.winchad.com/uploads/1/3/1/4/131406365/ronufesipedawis.pdfIn PDF document text
    • http://files.rosanaourens.com/uploads/1/3/1/4/131437725/7046049.pdfIn PDF document text
    • http://files.southviewcaravansite.com/uploads/1/3/0/7/130775331/gejolarisawonib-mikajowul-xugomogura-solinijagofer.pdfIn PDF document text
    • http://files.sandrakarlspaper.com/uploads/1/3/1/4/131437685/xagezusaxani.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/1/0430/7560/0535/files/92321775683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/welabenazulelaxatogitili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/vewobewexofidavunewene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/67905899659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5253/0845/files/18248966148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0084/5720/files/53853984723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/24252351441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7142/9021/files/nifibov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0577/9863/files/48133218911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/91724369477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.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_off00004ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF0 5272 bytes
SHA-256: da9f91d9a436e99364e964713fa8b1d1683e7c124fc217b4c60e992faae286ab
font_01_sfnt_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 10116 bytes
SHA-256: a6be323031d5a3cf1545458e3dcf8a42bd23659247259256b72aee178a3a796c

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