Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af7f8e33c685b47…

MALICIOUS

PDF

45.6 KB Created: 2020-07-29 01:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39e17b480fbaf9eea2c168e9591c5253 SHA-1: 814b6d898e77262b3fec8a4b5a8df2307d1b006a SHA-256: 9af7f8e33c685b4791387ef80827fdefc2b1e0fb8838850dee0932479f9d0bae
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains text that appears to be a lure for video content, likely to disguise the malicious links. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=bhojpuri+devi+geet+hd+video In PDF document text
    • http://files.athleteinstincts.com/uploads/1/3/2/6/132682829/xonufijij.pdfIn PDF document text
    • http://files.worldwarc.ca/uploads/1/3/0/8/130815095/xokevogetuwa.pdfIn PDF document text
    • http://files.watergateatlandmark.com/uploads/1/3/0/9/130969874/xurakigejozo_zemimijan_kikaditapebi.pdfIn PDF document text
    • http://files.bysamanthajo.net/uploads/1/3/0/7/130740212/xujijaxox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/57198834648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1830/5179/files/43291593473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/63236156714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2597/3916/files/20432150500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8035/8815/files/41653862585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4492/1766/files/93856135494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/58748231695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1896/9507/files/45480206767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0324/7781/files/90184649132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0449/2957/files/somebebipefokov.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_off00006156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6156 4760 bytes
SHA-256: a9d7756e183e44ea839b69131162b39d00f4972fbcb5b72279a19ee078bdd0c4
font_01_sfnt_off000071b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B3 10004 bytes
SHA-256: 220867b1b371ede0a78bba5abaf3455e85e567938dd3b3eb6e998771b89a6316
font_02_sfnt_off00009436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9436 6132 bytes
SHA-256: 966aba1e89e8c4f3ab04cbd55d3e0f7dc47334f995092c8502cef7c7470b6d71

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