Malicious PDF — malware analysis report

Static analysis result for SHA-256 3494353df6a5ebac…

MALICIOUS

PDF

37.7 KB Created: 2020-08-14 10:45:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcec0a6375dfa5a090fa55bc36807a56 SHA-1: 4d25caf5bbef9c69167927ee7337428675aa1477 SHA-256: 3494353df6a5ebac56b13008cc6c33bb5791797473c58919b28318e69f285b07
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 pointing to 'https://ttraff.com/pify?keyword=acr+neo+3f+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0435/3818/6392/files/brighton_rock_download.pdf'. The ML classifier also flagged this PDF with high confidence. The document body contains obfuscated text and the malicious URL, suggesting an attempt to disguise the malicious intent.

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.com/pify?keyword=acr+neo+3f+manual In PDF document text
    • http://files.paromat.com/uploads/1/3/0/8/130874381/nesirewabag_tozotonunogaxuw_gumoperob.pdfIn PDF document text
    • http://kinojem.archildrensbookpublishing.com/uploads/1/3/1/0/131069839/2978579.pdfIn PDF document text
    • http://files.davidmichaeldesign.com/uploads/1/3/1/6/131636766/3ab714.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/1/0435/3818/6392/files/brighton_rock_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/level_order_traversal_binary_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/assets_and_liabilities_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/zixevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2675/7270/files/zoposoguximikigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4544/6044/files/62613202567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/how_to_delete_tumblr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/xitimozusivaxexijedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/the_lost_steps_alejo_carpentier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/wasanaju.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_off00004b4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4D 5000 bytes
SHA-256: c10e6f45538b7df77928ab25863ea62e47273d0cd4f5518f180ac1f98a430fc5
font_01_sfnt_off00005c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C33 14492 bytes
SHA-256: 8cecfdc3bfd98eb7472d61a2b1f85c5924c961799106745ef65d30b99c2fa64f

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