Malicious PDF — malware analysis report

Static analysis result for SHA-256 410712288a20254f…

MALICIOUS

PDF

51.3 KB Created: 2020-08-19 17:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49c6ae8c8e8035e38267643d4255b40b SHA-1: 842e60e34f1a0b99681eaa49c35f614ea81c9362 SHA-256: 410712288a20254fc603b16874f79a43493ce529df42a378dba784fa612af0e1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to 'latex book template overleaf', which aligns with the malicious URL. The primary malicious IOC is the redirector URL, which likely leads to further 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.cc/pify?keyword=latex+book+template+overleaf In PDF document text
    • http://files.fccwareham.org/uploads/1/3/2/7/132740860/4414195.pdfIn PDF document text
    • http://files.mckinneysfoodcenter.com/uploads/1/3/1/6/131606563/b0b44cfe5c6.pdfIn PDF document text
    • http://wuniritaw.midwestthriantarba.com/uploads/1/3/0/9/130969352/6868239.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/1/0432/1715/8312/files/ruxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/36847430906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/21365812010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/61428946052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/metegemekipezafekude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/22384608309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/28013786377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5181/8903/files/sad_breakup_dp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/tabivobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/acronis_true_image_for_linux_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/nuroxajezikeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4690/3701/files/87756656148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/51539864170.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6164 12008 bytes
SHA-256: abb872a525242fcca484a24536f9bfb079bd77528c3e2035299b77ebdf12ce50
font_01_sfnt_off000088e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E3 5144 bytes
SHA-256: bfdedd57635a4c3bf67664cadcba2e817b076173f56077ef3d269a07b562ea15
font_02_sfnt_off00009a5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5D 11316 bytes
SHA-256: df57819cb9f127026771dd5b979aadb091edc70f9e297631abab0ab2747636c0

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