Malicious PDF — malware analysis report

Static analysis result for SHA-256 33bd9487ceec9568…

MALICIOUS

PDF

34.6 KB Created: 2020-08-07 08:07:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d877bee2716ebb905278c5967f52ec0 SHA-1: cae30d100287f09a1f5383145b7645d552a73933 SHA-256: 33bd9487ceec9568e8e726ea8b968cec91d810508c504e9a619a3972bd14ea2d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=roman+art+and+architecture+mortimer+wheeler+pdf'. This indicates the document's primary purpose is to lure the user to this malicious URL. The PDF also contains a large number of external links, many hosted on shopify.com, which is flagged as a link farm. The embedded URLs suggest a social engineering tactic to trick users into downloading further malicious content.

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=roman+art+and+architecture+mortimer+wheeler+pdf In PDF document text
    • http://gafoz.emperrial.com/uploads/1/3/2/7/132712358/zosapu.pdfIn PDF document text
    • http://files.missmissionminded.com/uploads/1/3/1/4/131438018/40c27a8381.pdfIn PDF document text
    • http://files.camdentonpawn.com/uploads/1/3/0/8/130813526/4045864.pdfIn PDF document text
    • http://files.michaelmorrisnz.com/uploads/1/3/0/9/130968984/25547255bd.pdfIn PDF document text
    • http://files.according2genesis.org/uploads/1/3/2/6/132695258/2225392.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/1/0429/7339/7145/files/64157293831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/35062338101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9671/0047/files/roman_art_and_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/4966651679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6231/9521/files/hackintosh_high_sierra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/wesatakeribajezakaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4708/3429/files/bixerokogewanuzobalov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/84441936923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9380/1625/files/24984083842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9175/files/69378306697.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_off000048c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48C7 5316 bytes
SHA-256: 708ac46439e0dccd0a01a9d2a699b2612416c0310c13ed79659e1ffa83c2ac80
font_01_sfnt_off00005ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC8 10168 bytes
SHA-256: 9dafb2cb202910fc89d9150729c46f1e1acb90f0dbbc99a521cb70d0e5965b4c

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