Malicious PDF — malware analysis report

Static analysis result for SHA-256 53542867c594cca3…

MALICIOUS

PDF

60.4 KB Created: 2020-08-28 07:30:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ffcaf092ae0355a3fec6e5e8c248183 SHA-1: ed62b58571d58794bc9390b5c9a8982d1050dcbf SHA-256: 53542867c594cca3ac218b43e8282fa53e3270b300f106ef717438feefa8c187
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains text related to a 'Beechcraft musketeer a23 maintenance manual' and references the malicious URL, suggesting a lure. The presence of multiple PDF links, many hosted on cdn.shopify.com, further supports the SEO link farm heuristic, which is often used to obscure malicious destinations.

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.club/pify?keyword=beechcraft+musketeer+a23+maintenance+manual In PDF document text
    • http://damow.rockcrossingcc.com/uploads/1/3/1/0/131070711/bce576030875a.pdfIn PDF document text
    • http://files.gettingtogethernow.com/uploads/1/3/0/7/130775784/ed356a976986.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/1/0440/6142/5814/files/film_acting_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/1418/5113/files/brand_positioning_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/auditor_general_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/gexitivejosub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/burrito_bison_revenge_hacked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/89157768420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6095/3242/files/freshworks_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/universalidade_integralidade_equidade_e_sus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1061/1605/files/brolly_sheets_discount_code_nz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/24965941485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/lubuma.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 7

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_off0000a74c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA74C 5528 bytes
SHA-256: 2e0dfb25b22b5188aa162b0141cad92ff2251af64679edcec0317fee9c1e74de
font_01_sfnt_off0000b9f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9F7 13424 bytes
SHA-256: 64333b6d3b96f0af95849145defb68830df7d7a6ff55a4c51b28d67b003b360e

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