Malicious PDF — malware analysis report

Static analysis result for SHA-256 323526af8d56d1c7…

MALICIOUS

PDF

69.4 KB Created: 2020-08-04 20:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 684517a71e178d883c3df50e8b233523 SHA-1: 30d0dc9f8811e400da8f6856fab0afce27d65c15 SHA-256: 323526af8d56d1c7257a8f8fa9f02782e05757cc82c08494c72d38a410a6018a
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a redirector link to traff.com and a link farm hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. The presence of a phone number lure suggests a callback phishing or tech-support scam pretext. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=anthropological+research+methods+pdf In PDF document text
    • http://lanus.looptackle.eu/uploads/1/3/1/4/131437689/japuse_vuradatupobasu_xolebaj_vuxipas.pdfIn PDF document text
    • http://files.littlesparrowstudio.com/uploads/1/3/0/7/130776047/tikudabulinewerero.pdfIn PDF document text
    • http://mukol.bereangracechurch.com/uploads/1/3/1/8/131856333/bavegalobuvevig.pdfIn PDF document text
    • http://fovati.asylumarchive.com/uploads/1/3/2/6/132695384/cc96eaefe.pdfIn PDF document text
    • http://files.valeriaflorescano.net/uploads/1/3/0/7/130739831/jixebofudedusajisa.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/1/0437/9285/9293/files/favamutaxijugezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7383/6958/files/projo_obituary_ri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/14555617396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/20386070687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8007/0821/files/79830909830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/luwokikapinolaravopako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/fobaxunumabagag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/rixunikowafabudebasar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/83489583315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/guvepof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9721/8458/files/savewasokawekumaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9947/8434/files/togevinen.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BE 5556 bytes
SHA-256: 024b88bfdac14484bfd51dae915670265aa70fb834e6aacb8c297c3e0982b2bf
font_01_sfnt_off0000e679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE679 9844 bytes
SHA-256: 8b1d2797d36fc50217c927d756901031090f916b6911e99b75bedcb8242f7b5d