Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8593514a4006a31…

MALICIOUS

PDF

41.2 KB Created: 2020-08-23 02:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 14557b5d053710ef46080abb885255df SHA-1: 89f0d456bbd7b8002a908b5cfe70b82fd31af055 SHA-256: d8593514a4006a318bdf923e37ac86541211103dc10a5f8e4c46ef6ce5c7c707
194 Risk Score

Malware Insights

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

The PDF contains embedded links that are part of a link farm, with one critical heuristic firing indicating a redirect to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful sites.

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.ru/pify?keyword=florida+department+of+state+2019+annual+report In PDF document text
    • http://wanemu.thestlouisguide.com/uploads/1/3/1/8/131871921/wuparulake_wumunezo_kaxojilajomijo.pdfIn PDF document text
    • http://files.alhamptonchapel.org/uploads/1/3/1/6/131606569/dovujogevudapam-fazeriboranubu-tupekobupipupin-tobusilodu.pdfIn PDF document text
    • http://wejazi.torontosoupco.com/uploads/1/3/1/6/131606620/aac823c430.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/1/0432/4717/3800/files/dofamab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3543/3887/files/ace_stream_on_sony_android_tv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/77751256876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1048/files/22460990330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0027/3830/files/mitalemalodekezalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7127/4146/files/lazipuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/22428435544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9962/0263/files/inderal_for_performance_anxiety_dosage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/juzidopusiridukepaniza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3378/7542/files/biblia_estudio_plenitud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/hacking_the_caged_system_book_1.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 2

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_off00006207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6207 5624 bytes
SHA-256: 34a7bd22b4f21ac5075827e701e93be9d5448485f6d2b46b66a639390ac1e00d
font_01_sfnt_off0000750e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750E 10332 bytes
SHA-256: b83c4215c656bbb5052781aa41ea313d689a1108c883d6dd56014c7f36bcdac3

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