Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc3f219981cf040d…

MALICIOUS

PDF

64.2 KB Created: 2020-09-16 12:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f04eca4cf620d8300af079d25e8478e7 SHA-1: 7576bbc165ada5b6e76b601e5f9059c2abde5b6e SHA-256: dc3f219981cf040da0220438acd80346483c52d82dcc8b55acde58c1670c7397
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to suspicious domains, and one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'college athletes be paid pdf' and the malicious URL. This suggests a phishing or scam attempt to redirect users to malicious content.

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.club/pify?keyword=should+college+athletes+be+paid+pdf In PDF document text
    • http://files.wcrwestmichigan.com/uploads/1/3/1/6/131636845/e01bc.pdfIn PDF document text
    • http://wonutexu.robynnvazquez.com/uploads/1/3/1/6/131606113/dijozakit.pdfIn PDF document text
    • http://files.denverbap.com/uploads/1/3/1/6/131636825/fokote-gekabujabigo.pdfIn PDF document text
    • http://files.amberthornandbone.com/uploads/1/3/0/8/130874180/33cee29d863082a.pdfIn PDF document text
    • http://files.alysbeachweddings.com/uploads/1/3/0/7/130775528/jigododeled.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/1/0430/2353/2195/files/1355933416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7901/5327/files/dozebekazifub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/xopafarividojepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8888/7460/files/lidari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3282/9342/files/74967413792.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/13ae68_7bc07d04a7534258adf46acd2cfc0823.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bfbc46_db160f8f41294757827e4e1da5f75e5f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0c8cc8_be95de7818fb43c999ce566cf326fd77.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/df4650_f76ba1376d684aafb5ee0ee3285badae.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_dfe1d7760b8645cd8075260c6caec18d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1da05d_1ff7c9a4945a4272b760263597589edd.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_off0000bc35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC35 5564 bytes
SHA-256: 6b04b6cec13fe40cdfdf944ee5d904287650ea59ef707dda3e89deb080ab6091
font_01_sfnt_off0000cf1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1F 10660 bytes
SHA-256: 3e33bbea76ba9dcee602d281d1804f85200f99f669634035a9e2b84c0b777326

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