Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f3fb2db4880fda3…

MALICIOUS

PDF

45.1 KB Created: 2020-08-06 11:22:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db2ff84c47fc2da9ff2a4d8c657e18b5 SHA-1: 72810596257c50bf3f7d7794828fd65b80e697c8 SHA-256: 0f3fb2db4880fda3379cbeed527d79440ae302bbaa90d06d2791470b19d5af74
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body text, though garbled, contains keywords related to a 'medicare for all plan pdf' and the malicious URL itself, suggesting a lure for users seeking information. The ML classifier strongly indicated maliciousness, and multiple heuristics flagged the presence of malicious redirector links.

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=bernie+sanders+medicare+for+all+plan+pdf In PDF document text
    • http://files.updatescentral.com/uploads/1/3/1/3/131384018/fotimiva_nidanu_gibuvidedavade.pdfIn PDF document text
    • http://files.19th-light-dragoons.ca/uploads/1/3/0/7/130775917/risovuzit.pdfIn PDF document text
    • http://pawelem.newhavenalphas.com/uploads/1/3/0/7/130776407/jamon.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/1/0434/0659/0104/files/50066124915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/40430790682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/50973499588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5805/2763/files/crusader_kings_2_cheat_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/gapuxawapufibobenoluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/safufisarozedikivaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/pomuduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/php_in_array_case_insensitive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9016/5403/files/luvoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/dumiromulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/ashley_furniture_catalog_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/80187835273.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_off00007189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7189 5348 bytes
SHA-256: da7fe01b74d1a7fb0e037d0327ed6a977492c98d1c9abe1d8c6c8b4909bcd45e
font_01_sfnt_off000083a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A9 10476 bytes
SHA-256: 7474d411b4eee2fce8712b65a3e0339e2ef3b5600899cd122ae556f4c307bd64

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