Malicious PDF — malware analysis report

Static analysis result for SHA-256 f298657380f42757…

MALICIOUS

PDF

54.1 KB Created: 2020-07-30 17:34:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2160e3cbb29368f7e4e0ab627df878c9 SHA-1: 7371ccc3dbe8f3113e02376aa1ad45ad2e0c8517 SHA-256: f298657380f42757621c6c595ab540106e45eac5100a235425c1bfea2db7633a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a significant portion of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its direct lure, but the presence of a malicious redirector and a link farm strongly suggests a phishing or malicious content delivery attempt.

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=carboxylation+reaction+pdf In PDF document text
    • http://files.lordandnikes.com/uploads/1/3/0/7/130740211/muforel.pdfIn PDF document text
    • http://files.mymountains.fr/uploads/1/3/1/4/131436956/a12e21d8d.pdfIn PDF document text
    • http://files.mirandareed.com/uploads/1/3/0/7/130775245/4764460.pdfIn PDF document text
    • http://files.bayareareclaiming.org/uploads/1/3/1/1/131164250/239545.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/1/0430/3601/6802/files/remupobatemimalisikenotaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7494/5184/files/gepavikaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3516/2786/files/60040200469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8383/9128/files/63471564011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/6696403532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/27129576703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/zobapuxikegawepizipub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6716/9173/files/tukugatitorifoduwuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/keluwofuxiraroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.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_off000094c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C4 5092 bytes
SHA-256: 7738364db3c83a964d32339a3de9453d04f377c780991a680d560db6d5a06b8b
font_01_sfnt_off0000a629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA629 10804 bytes
SHA-256: b7e54ada9aca3e5b3f5447b56b9f228ba56d946533942a64eda42e33c341909d

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