Malicious PDF — malware analysis report

Static analysis result for SHA-256 141d2b40e57be3d8…

MALICIOUS

PDF

40.3 KB Created: 2020-08-25 03:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 077f7525a4be058a1c696e968a5db6eb SHA-1: eb89f7d4488d857e887090fa5e1f9ba9c6da859c SHA-256: 141d2b40e57be3d85539374d52c276dd9ee524f223cdccef4543d43ab100ee56
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector service, which in turn leads to a download lure for Photoshop. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-optimized PDF links suggests an attempt to distribute potentially unwanted or malicious software. No scripts were extracted, but the document body and heuristics indicate a phishing or scam attempt.

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=photoshop+for+windows+10+64+bit In PDF document text
    • http://files.woodridgeart.com/uploads/1/3/2/7/132741194/8182869.pdfIn PDF document text
    • http://diwuteko.heritagetreeserve.com/uploads/1/3/1/4/131406665/6321837.pdfIn PDF document text
    • http://forixuj.chaparralpointecondos.com/uploads/1/3/0/7/130776819/1331fd67.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/1/0437/9266/2688/files/48332095181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/select_all_google_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8442/2051/files/sophocles_antigone_fagles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/defujomotabenofiduno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/judufewawovixaxijeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/56161430130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/53258344379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/kupevutaxutabekamebosejaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6089/5650/files/83017475476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/tisefasaforusu.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 1

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_off00005fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB0 5556 bytes
SHA-256: 5a281a482985fdd33b4b5caf98e597d7feb96244e0d3e663831d2110cce983d1
font_01_sfnt_off000072a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A4 9968 bytes
SHA-256: 1affe6d888eec2dd182acd45b7ed45047183ff6ddb8c1a3f91acdc9a6dea4642

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