Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d648930a242bf1…

MALICIOUS

PDF

53.0 KB Created: 2020-08-22 10:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: feef5a749399695cb25d8530b1f443f2 SHA-1: f01926dcdc3664bed4dadd8c6509d23f4f93ebb3 SHA-256: 82d648930a242bf1d763097864dfbc78b34c96f297b18f232457e934245fa9db
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, likely intended to trick the user into downloading further malware. The document body, though partially corrupted, contains the same lure text and URLs found in the heuristics, reinforcing the phishing attempt. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=harvest+moon+a+wonderful+life+character+guide In PDF document text
    • http://lizum.europahistoriarum.org/uploads/1/3/0/8/130814328/puwesujot-zijonufisenajax-resiziwi.pdfIn PDF document text
    • http://files.fiberenvy.net/uploads/1/3/0/7/130740184/99e487a2d.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/1/0428/5415/4406/files/31282237787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/75643867219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1712/3478/files/opposed_piston_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/linkedin_share_url.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3538/6265/files/definition_of_instructional_leadership.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9674/files/98264728447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7363/3432/files/tatidoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3680/1181/files/35996883110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/roxepawovuwewat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/90328988726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9054/1733/files/34097686307.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 6

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_off00008610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8610 5548 bytes
SHA-256: 896929a637978717fb81e018da60955b54a4bb2c9ad130b194785cf209e46736
font_01_sfnt_off000098d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98D1 14880 bytes
SHA-256: 1609c0e9da7e3b4b8c6fd0f38b540a60a2e8231326118de5f547be1140ec87b6

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