Malicious PDF — malware analysis report

Static analysis result for SHA-256 564a5fb78bf79d72…

MALICIOUS

PDF

33.5 KB Created: 2020-08-18 22:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bfc60c412c99a8634633ecaa7e3f1d3 SHA-1: 92d7ba33bcf378c98d2a45a0023e1941826eae93 SHA-256: 564a5fb78bf79d722595cc706600e621d4e221bc5975cef32d373e9bf2baa888
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify-hosted PDFs, indicative of a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, suggesting a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=village+ambience+sound+free In PDF document text
    • http://files.drajaiseth.com/uploads/1/3/1/8/131871692/9f1d358ca5aa39b.pdfIn PDF document text
    • http://files.fabcustommountssg.com/uploads/1/3/1/3/131380480/sixafajezosizo-ripero.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/1/0427/9622/0572/files/makujigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1111/2092/files/sword_art_online_progressive_manga_vol_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0485/9292/files/dufozeviwuremavevabuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/fopepituga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/libolofep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5209/files/17049366434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4716/5850/files/kiziguretofogevadut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/satapivepafawipibabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2273/6798/files/zisedapunaritadufode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/30118850550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4060/4314/files/gotumakuxusedubosefamipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/contrato_administrativo_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/xurexipizetu.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
🗂 Part of campaign: beggslab.com 3 samples

Related samples 2

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_off00004708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4708 5448 bytes
SHA-256: 8b38a080b9f2666e9a1b3a34773bca22d8c55492d00738451403a39fe5b4bea1
font_01_sfnt_off0000596e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x596E 9360 bytes
SHA-256: aafc74c4814403263e3a5bdcdc08e9da11a5b21e5253e05172b063baf37fbfdc

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