Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa9a972fd3c64719…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 01:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2edda040246fbb56d8b50db8047f119 SHA-1: fcdcd0c8ce9d0cdd2064a95dad20c749c1003d31 SHA-256: aa9a972fd3c64719b7e73f3d4c9bd62adeb5d149700971026f063050bba34a39
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/wb?keyword=menu%20template%20pdf. The document body is heavily obfuscated but appears to contain the same URL. The primary attack pattern involves tricking users into clicking these links, leading them to malicious sites.

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/wb?keyword=menu%20template%20pdf In PDF document text
    • http://tejane.quillandpapercalligraphy.com/uploads/1/3/1/3/131380397/bagexibokilaxakepej.pdfIn PDF document text
    • http://files.islandparkpreservationcoalition.org/uploads/1/3/1/3/131398095/6192131.pdfIn PDF document text
    • http://files.lyricmgmt.com/uploads/1/3/1/1/131164402/a72d9dba1bbc09e.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/1/0434/8100/6244/files/ielts_speaking_tips.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2426/1018/files/16248426107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3159/2102/files/77343068665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0460/files/62293221180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/ziduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/jabivuwaropato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3997/3788/files/72622662075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/auditing_and_assurance_services_in_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/mowiguvowifep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ferenap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/88805396300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0223/8875/files/articles_rules_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7080/files/kerakatovekanuparowok.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_off00006599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6599 4920 bytes
SHA-256: b1c64b244f3c1bd823ca6720991dd09385a3da9bcfb83ba4ab26437ce53420fd
font_01_sfnt_off00007652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7652 10104 bytes
SHA-256: cb911fbfb82a04a9a2045d620b9a32c05def2f14a2f4f6e5492de1c388443d40

Open this report in the interactive analyzer, or submit your own file for analysis.