Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d2a7bf8600cb12f…

MALICIOUS

PDF

43.6 KB Created: 2020-09-29 10:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02c7640bc4502b7eec5544af80d99a29 SHA-1: 155bf480f5a0ab8de1e9b375231e04fb09952b77 SHA-256: 3d2a7bf8600cb12fdc3492cb4065302732bb0a20145aecb821f6cf2dacabdf7d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, many of which point to suspicious domains and are flagged as malicious redirectors or part of a link farm. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, suggesting a lure to external malicious content. The ML classifier also strongly indicated maliciousness.

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://cctraff.ru/mozel?keyword=hokkaido+self+drive+map+pdf In PDF document text
    • http://files.neowwc.com/uploads/1/3/0/8/130814209/tigutasu.pdfIn PDF document text
    • http://files.katymorrisonphotography.com/uploads/1/3/0/8/130874582/49710cd3b46.pdfIn PDF document text
    • http://devedime.pesfusd.com/uploads/1/3/1/4/131482916/9602127.pdfIn PDF document text
    • http://bekajogux.theemergencefoundation.com/uploads/1/3/1/4/131453540/23c873c2eb1f821.pdfIn PDF document text
    • http://files.sjeliz.org/uploads/1/3/1/6/131636813/7008dc1d93.pdfIn PDF document text
    • http://xabob.antoniacundy.com/uploads/1/3/2/6/132695219/zemimonofeba.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/1/0432/6404/9318/files/definition_of_motivation_according_to_different_authors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9698/0136/files/adobe_photoshop_cc_filehippo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1666/6786/files/the_power_of_six_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/70785814157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/4447/2485/files/97382954641.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_off00006091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6091 3360 bytes
SHA-256: e0d05af4178ed18eaa4ca5e58eb899a732bfc5e1cabcbd5e182551214142cf15
font_01_sfnt_off00006c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C90 5272 bytes
SHA-256: 1a047a6fdfaef8127f5837a0b8cdc0181c6b4de0aed8b20d8dbc0036c18da702
font_02_sfnt_off00007e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E71 10288 bytes
SHA-256: 2039752f9cf0fb1c3a7d04b936c7ae9b34fb6a4ed3149d6e17672f9a4b2df9c5

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