Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e8f7d16605c50a0…

MALICIOUS

PDF

40.8 KB Created: 2020-08-06 15:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67f0c6fcfe0514f385c5af013a69c894 SHA-1: ac864df71bb1500418d9b414b1812bfb07415f61 SHA-256: 4e8f7d16605c50a0c144c502a4a04fb73f3852071b5d460ebb2c6134d0aedca3
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which are hosted on Shopify and appear to be SEO-optimized lures. One prominent link, disguised as a job description, redirects through a known malicious redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.

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=job+description+of+administrative+manager+pdf In PDF document text
    • http://files.agarnetrose.com/uploads/1/3/1/0/131070009/duwik.pdfIn PDF document text
    • http://jurujadu.lenioffringa.nl/uploads/1/3/1/8/131856772/69357.pdfIn PDF document text
    • http://files.muphipvsouthbay.org/uploads/1/3/0/7/130739165/5190843.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/1/0436/6735/7846/files/feduxikex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/nesewowijowejapapivilop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/megili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/81169880041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/70936707821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4953/9989/files/ugly_s_electrical_reference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2650/4086/files/kizusedodulutoxazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/62554588614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/3700226586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1065/3338/files/bovavorijugivosobum.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 3

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_off00005fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD2 5632 bytes
SHA-256: 0440c0ad65b8ae46f9e3112531990d0a1ba0983d82fc48a841356f6d75100cc1
font_01_sfnt_off000072e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E9 10448 bytes
SHA-256: 5a05366d55420c26b49586e4e72d41623d4f4ad7ae8aadf0def9a105901015d9

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