Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9c268ed87fc8c5…

MALICIOUS

PDF

52.4 KB Created: 2020-08-09 03:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7ce54e8267e66c935bff5961e0cdca9 SHA-1: 18839344dae6c1f3def4dcdc8c0fd45d2704e853 SHA-256: 7f9c268ed87fc8c55fd2a843fe65f3771dd179487c436cf35482ac7527e72e17
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking Shopify links, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious verdict.

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=vengeful+ve+schwab+pdf In PDF document text
    • http://files.evolvecounselingoflansing.com/uploads/1/3/1/3/131383247/cca1c.pdfIn PDF document text
    • http://files.espgallery.com/uploads/1/3/0/8/130813373/8882453.pdfIn PDF document text
    • http://zitikupo.sheltonprivatevoicestudio.com/uploads/1/3/1/3/131379730/zedule.pdfIn PDF document text
    • http://files.kemuda.net/uploads/1/3/0/7/130775698/6269101.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/1/0439/4686/8891/files/605228457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0470/7491/files/78153040417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8103/4917/files/origami_bat_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/nordvpn_coupon_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/tafigikadipajegokutuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/sotusigogovabolipasip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/basics_of_mechanical_engineering_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4652/5338/files/sagugumuwamilimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/49696710720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9776/5528/files/65297965392.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 2

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_off00008bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAD 5580 bytes
SHA-256: b5eb1b1f72950244078715d3067860eaa8ff518519f58199b83133f82b0e6e41
font_01_sfnt_off00009ece.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECE 11696 bytes
SHA-256: 2532eaace439210d4df2457532519be846f63c7cbf50ffe8de25f0bf0749ee0e

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