Malicious PDF — malware analysis report

Static analysis result for SHA-256 10751ef93396ffe2…

MALICIOUS

PDF

33.8 KB Created: 2020-08-14 13:02:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ec9131e109d8823ac01857a43d69287 SHA-1: 8ae1e55b52651d77ab792d81c0f2f98d297910bb SHA-256: 10751ef93396ffe25301c7edb2332ad0e5ffa76ccd2057620f3aa72efde9a970
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, masquerading as a healthcare form to trick users into clicking. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a link farm or phishing attempt. No scripts were extracted, but the embedded URL is the primary 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.cc/pify?keyword=caremark+prior+authorization+form+for+adderall In PDF document text
    • http://files.sportsgrouphawaii.com/uploads/1/3/1/6/131636990/9948949.pdfIn PDF document text
    • http://kiludomi.orrvillebaptist.com/uploads/1/3/1/6/131606552/1938488.pdfIn PDF document text
    • http://jamolijom.hdofficiants.com/uploads/1/3/1/4/131408738/sosaje_natodowinufif_sikumurupadibi_zezanazisi.pdfIn PDF document text
    • http://files.wrenpaediatrics.com/uploads/1/3/0/7/130775735/zasuzufunuwopej_tikigezusorire.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/1/0432/3698/2944/files/la_vie_en_rose_uke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/zone-_empire_comics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/8997/files/82882305681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1979/6643/files/55905119768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8211/9323/files/jiwadazixazonax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/81720933956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/99_names_of_allah_in_urdu_translation_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/69645280113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/metal_gear_solid_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6017/files/34144971785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1025/files/catholic_daily_prayers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/96717177760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/zatozapuzusovapagojadufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2838/8767/files/93835437065.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 3

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_off00004a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A63 5120 bytes
SHA-256: ff5a6c5922ee1aab847120eb761dd7ae8bffe971248abb2778299e2dba3548de
font_01_sfnt_off00005bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB3 8828 bytes
SHA-256: f0753e58b2279b7f37e17ef50598b63fce13cc2eda205d64aa0cfc3aab4f1b9b

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