Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f7a3e12771a1cda…

MALICIOUS

PDF

41.4 KB Created: 2020-08-15 05:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bbd8501ab30f3a42dfdab58544fd101 SHA-1: 8af93e8c20e133e89be82e7683282148505fd014 SHA-256: 1f7a3e12771a1cdae5f5d48c6be1785d90e404c9b01b48ba7bab4127cadc5727
194 Risk Score

Malware Insights

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

The PDF contains a link farm of numerous external PDF files, with the primary link directing to a known malicious redirector. This suggests the document is designed to funnel users through a series of redirects, likely to a phishing page or to download further malware. The presence of the URL 'https://ttraff.com/pify?keyword=cuddl+duds+sheets+walmart' is a strong indicator of malicious intent.

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.com/pify?keyword=cuddl+duds+sheets+walmart In PDF document text
    • http://files.spinthehandle.com/uploads/1/3/1/4/131438282/f0698ab9ff1.pdfIn PDF document text
    • http://files.thevictorianpetal.com/uploads/1/3/2/6/132682585/rexiragiletar_zafufoze.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/1/0432/3452/5352/files/9943875217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1433/9235/files/93520429430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/wonder_auggie_and_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4445/2005/files/causes_effects_and_control_measures_of_soil_pollution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68736518606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/webp_to_gif_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4088/2340/files/modern_physics_randy_harris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0726/1341/files/jivizelezozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/3676102336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/xunitusebonapipaletibise.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 4

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_off000064dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DD 5060 bytes
SHA-256: ac30e50dd5e3cc9b697445ef865acf0e308fd2cdedadb4db67466c0f5f03a7b8
font_01_sfnt_off000075f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F7 10132 bytes
SHA-256: 6c667480522bafec53d0c99548eb95f1b789208d72d2ef35b7100cafc9b6f6e6

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