Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3ccd06ce1126521…

MALICIOUS

PDF

43.5 KB Created: 2020-08-14 18:24:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b88e213eb7b0de3092a8a769928d1d9 SHA-1: abf88a47407078897e994921152f2d981d33eec6 SHA-256: a3ccd06ce112652161bc38ff6fa827eb65dc5e578b3d0eff99fb111aab640a91
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=psychology+book+references+apa+format'. This URL is likely used to redirect users to a malicious site. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the presence of the malicious redirector is the primary indicator of compromise.

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=psychology+book+references+apa+format In PDF document text
    • http://files.plumcreekownersassociation.com/uploads/1/3/0/7/130776037/fonefizusosufi_sejagid_kofiragowufuwu_zitulakitapefe.pdfIn PDF document text
    • http://files.pavlicek-foto.com/uploads/1/3/0/9/130969565/sirejifora.pdfIn PDF document text
    • http://files.posterworksgallery.com/uploads/1/3/2/7/132740623/606b5d2a5.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/1/0431/0925/3282/files/vepatugewapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xanixiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9278/5818/files/aeneid_book_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0522/1784/files/bafilusexulakumupof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4252/9695/files/44354673150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/bessie_s_blues_bb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7074/9849/files/cancer_de_cuello_uterino_introduccion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7532/1499/files/52575746633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/74109586312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/11485053389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/8046285455.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 7

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_off00006afe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFE 5736 bytes
SHA-256: 054c61eaf0d3ec067906f62c90107dd45390a3e27b57cdc5dac70bca8403838d
font_01_sfnt_off00007e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E56 10120 bytes
SHA-256: 763f5d3b52a38522aa26dcfa7d51676adea9efb33c17d87260b54c0a5eed0310

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