Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b757b6bed3654c…

MALICIOUS

PDF

120.8 KB Created: 2020-08-11 08:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a51ca2b3a386e7702b5518904592c209 SHA-1: ea2fe1b125164808f181e6e46f76796c4a045035 SHA-256: 12b757b6bed3654c66ed7dcfbde2b5963e4b73e43691c51940104ab571a3aeba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lead users to a link farm. The embedded URL, https://ttraff.ru/pify?keyword=aiag+advanced+product+quality+planning+apqp+2nd+edition.+pdf, is flagged as a known malicious redirector. This suggests the document's primary purpose is to facilitate initial access via spearphishing by directing users to potentially harmful 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=aiag+advanced+product+quality+planning+apqp+2nd+edition.+pdf In PDF document text
    • http://files.kfundtutoring.com/uploads/1/3/1/4/131438337/bodawabemija.pdfIn PDF document text
    • http://files.stevewhyteguitar.co.uk/uploads/1/3/1/8/131856602/vuvasigodob.pdfIn PDF document text
    • http://files.flashfoto.com.au/uploads/1/3/0/8/130813846/nivuladimotede.pdfIn PDF document text
    • http://files.eyelightdesign.com.au/uploads/1/3/1/4/131408970/95930.pdfIn PDF document text
    • http://jepuzuker.lucycampbell.net/uploads/1/3/1/1/131164250/8bef00c.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/1/0449/0140/0731/files/25324087951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/kizog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suxuteregejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3420/5590/files/kupejezuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0273/7318/files/german_a2_formal_letter_writing_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/subtracting_integers_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/golewunoperaxalos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/jelos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/61640545068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2730/8454/files/wiwekofijajupesijaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2241/7046/files/93268403854.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_off00019784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19784 5584 bytes
SHA-256: 569a377e6e961b1c2a655ae6f63443b73f9ead2fcb6a4bd915aac75e2b66a61d
font_01_sfnt_off0001aa99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA99 13408 bytes
SHA-256: 08003817fcc24803b663fe7d11a54fb4d34497ba63f441ec90b4ed3f727dd25d

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