Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eac4afbe6059f3b…

MALICIOUS

PDF

38.4 KB Created: 2020-09-18 11:00:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b2b9f292051f619792a608a250ac1145 SHA-1: 37d4283cc30755d1866b69e6c863103367f2904c SHA-256: 5eac4afbe6059f3b85c39e6e789bef780b46fd6223000e0aa8199bd3f28207a0
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and contains multiple heuristics indicating malicious intent. It embeds a large number of external links, many of which point to redirector infrastructure, suggesting an attempt to manipulate search engine results and lure users to malicious sites. The document body contains a deceptive title and embedded URLs, reinforcing the phishing and SEO manipulation attack pattern.

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/wix?keyword=bad+complaints+about+miller+motte+college+wilmington+nc In PDF document text
    • http://gumawonov.pinnaclechartermusic.com/uploads/1/3/1/4/131483108/5c85c4ea3.pdfIn PDF document text
    • http://norotut.sandollaraussies.com/uploads/1/3/1/4/131452929/midafokopizopaxid.pdfIn PDF document text
    • http://dolexatuk.calvary-answers.org/uploads/1/3/2/7/132710780/xuwunirakiguna.pdfIn PDF document text
    • http://risalop.hpeca.org/uploads/1/3/0/7/130739956/2020186.pdfIn PDF document text
    • http://files.crossfitvultus.com/uploads/1/3/1/4/131438190/2511898.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/1/0430/3159/3113/files/ikea-_usa_kitchen_planner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/81007931098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1869/1239/files/19185810662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/chunar_abcd_2_dj_song.pdfIn PDF document text
    • https://970f3ec4-8529-4dc9-80a7-0b5baa4c4d0c.filesusr.com/ugd/271e65_d681522f93b9416ebefc76de5c438e2b.pdf?index=trueIn PDF document text
    • https://e9b3778d-f930-4694-ab76-3483c1307814.filesusr.com/ugd/9c58c5_0b94d6bec61e4ff3b6e71684832bb988.pdf?index=trueIn PDF document text
    • https://57d5d3b4-a6bf-4c24-9a19-017821cd0bbc.filesusr.com/ugd/9d869b_ae1a2d66eaa54517b4352254cf90bf91.pdf?index=trueIn 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 1

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_off000055cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55CB 5672 bytes
SHA-256: 8e3771e54a497c346236ad23368f22dc94ed6d51e178429bcc4edad5dee50d8e
font_01_sfnt_off00006909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6909 10372 bytes
SHA-256: f6aaf5b656a35322b83275254aa33354697b953a0d9534d4edb471189f3f8c60

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