Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca4ad50c51536863…

MALICIOUS

PDF

72.2 KB Created: 2020-08-15 07:36:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26ebdd5595f6a6847f2bc0c53fd6417b SHA-1: d94a0444bc7dcd02f4f10c2e7cbe66796411f206 SHA-256: ca4ad50c51536863404bbc088d36db5b706986e792db3b248cb4e881475c7e7c
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.cc/pify?keyword=bootstrap+templates+for+login+page+free'. This URL is presented within the document body as a lure for free templates. The PDF also contains a large number of external links, many hosted on cdn.shopify.com, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious.

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=bootstrap+templates+for+login+page+free In PDF document text
    • http://nuwezid.margaritatovar.com/uploads/1/3/1/0/131070993/1540241.pdfIn PDF document text
    • http://files.visavisdurango.com/uploads/1/3/1/8/131872037/fojike.pdfIn PDF document text
    • http://dolupinex.kootenayratraid.com/uploads/1/3/1/4/131453284/wixomelivilok-pujunujutojari.pdfIn PDF document text
    • http://files.dearborn411.com/uploads/1/3/2/7/132740860/xokagilo.pdfIn PDF document text
    • http://gogexa.greatislandgardenclub.org/uploads/1/3/0/7/130739629/f88b71e.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/1/0434/0659/0104/files/38542822256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7807/files/plain_bearing_skf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8876/4316/files/pogojex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5338/7674/files/cae_gold_plus_exam_maximiser_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/28825718335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7863/2095/files/drenagem_linftica_manual_beneficios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7135/7596/files/38681109948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3702/2615/files/ditimemifuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0448/6055/files/kibexesafesuzosexaga.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_off0000de2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2E 5272 bytes
SHA-256: 1078ef33976253e96223b02fe4ea25e1389c5f1df4d3752a900489c786d5833b
font_01_sfnt_off0000f007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF007 10420 bytes
SHA-256: ba10f801d0596d252606431711ec8a08f6dcee9a3ede90bb53f22959039142d3

Open this report in the interactive analyzer, or submit your own file for analysis.