Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c7a9fae0c5acbc0…

MALICIOUS

PDF

42.4 KB Created: 2020-08-25 02:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21f1219fcf365d28aada555e3f1515e3 SHA-1: e0d39bcd56b4e68a6f5ca047de2ed9ef45da206d SHA-256: 0c7a9fae0c5acbc0f44353fca426665c4d6b5231b86c7d90c7806ef86e588a66
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one that redirects to a known malicious URL. The document body text, though obfuscated, appears to be a lure for the malicious redirector. The presence of numerous external PDF links suggests an attempt to create a link farm or distribute further malicious content, aligning with tactics used 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.com/pify?keyword=dawn+astrology+answers+fake In PDF document text
    • http://files.preecelightning.com/uploads/1/3/0/7/130775432/40225c0a.pdfIn PDF document text
    • http://files.dona-hutson.com/uploads/1/3/1/0/131070109/wedijedabixome.pdfIn PDF document text
    • http://bimolid.blumranch.net/uploads/1/3/0/8/130813108/fukawem.pdfIn PDF document text
    • http://gobiv.tamikiser.com/uploads/1/3/2/8/132814935/xunikofuke-baxamisaruse-jidizosaguv-nogobadu.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/1/0432/9409/7576/files/21061297961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/xefepetuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/54073370203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/disabipeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/descartes_meditations_sparknotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4817/2710/files/16808606586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/13773013353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5630/0186/files/35115469456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/lisurovotiwumesoxerofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3279/6574/files/kefaditejepumuwik.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6665 5192 bytes
SHA-256: 5c96c8a4f2e81aa36a276ab9352ae8d4968b9b3b5122921924228964d8b636bb
font_01_sfnt_off00007840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7840 10836 bytes
SHA-256: 20e4377767f18c37e909157135a2db1be8a90d42370d9385e2d148c9e21b0a04

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