Malicious PDF — malware analysis report

Static analysis result for SHA-256 754b289f7ac07958…

MALICIOUS

PDF

58.7 KB Created: 2020-08-22 23:24:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 097356c1fdde179c862ab9a613743900 SHA-1: 9476a52448b9130a0c114a4b8bf783686acab13b SHA-256: 754b289f7ac079586318c96d031dd734555ba02bcdbe5bce299c2415d8d59f68
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary redirector URL is 'https://ttraff.ru/pify?keyword=heading+for+business+letter+template', which is designed to lead users to potentially malicious content. The document body, though heavily obfuscated, contains references to the same redirector URL, indicating a deliberate attempt to direct users to external, untrusted resources. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=heading+for+business+letter+template In PDF document text
    • http://kajaza.analisemcmanusphotography.com/uploads/1/3/1/6/131637056/9976894.pdfIn PDF document text
    • http://files.glenoakscommunity.org/uploads/1/3/0/7/130738892/9772369.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/simavifavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9943/7721/files/action_replay_max_ps2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/37527793180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0375/files/12534170276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7061/0851/files/wigavufefetumugowiritapit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/ejercicios_imperative_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/81216886062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/1387/3320/files/arithmetic_reasoning_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2423/3126/files/rinidakapifegisameligidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1966/4542/files/ada_caries_risk_assessment_form_completion_instructions.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0E 5344 bytes
SHA-256: b04c8cffc2476ef02bb1a55a23951d8dd89b08acbf49ea60371e8f838c77b144
font_01_sfnt_off0000ac13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC13 10648 bytes
SHA-256: dfc71ca442f404828ebb3975d514ade993ec7158a4cf42e189cd9c1522640020
font_02_sfnt_off0000d05d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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