Malicious PDF — malware analysis report

Static analysis result for SHA-256 4673e3759cff6075…

MALICIOUS

PDF

45.0 KB Created: 2020-08-23 01:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 286ad889e64fd5b066fe09a795cd7931 SHA-1: d87c815cc32401d8bd4b5c2675ffaae05be12808 SHA-256: 4673e3759cff60753bb2207619b8934c0e97b826b1b5f124ecb3eafed2c5903a
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 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on shopify.com and other domains, suggesting a link farm for SEO manipulation or distribution. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link within the document.

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=tratamiento+de+hernia+inguinal+indirecta+pdf In PDF document text
    • http://files.barneyhourihane.com/uploads/1/3/0/7/130776069/453215c4fc.pdfIn PDF document text
    • http://files.crystal-violet.com/uploads/1/3/0/9/130969371/932291.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/1/0431/7901/6360/files/zujakesobebisevufiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0701/2004/files/minexonibozovad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/zugovakubidem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5461/files/mukufefobajijakarir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/72668710336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7104/files/sepasavujefuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/druid_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2804/5209/files/gogaxuxunonojipanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/kumibomujigakafuwib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/724693027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6219/0499/files/definicion_de_codex_alimentarius.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/jeragudumaxugiw.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 3

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_off00006d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1F 5340 bytes
SHA-256: 15339f542bc1631604ca0df353d4083952b2dc493c5f3b754000f94712631069
font_01_sfnt_off00007f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1B 11856 bytes
SHA-256: a70e52d0925ab64f2a241af9f4e43e1b7c3c6dcff285d404f3dec9107a23d3d8

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