Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e55b73855f2f8b…

MALICIOUS

PDF

52.8 KB Created: 2020-07-30 09:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5915a83489b60b6779d715513618f90b SHA-1: 205b54f2f20088c5e58f2ffc296ce8aae7a487c2 SHA-256: 69e55b73855f2f8b22546a69846861118814375cd3f00c457752597115bccf15
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, suggests a lure related to a medical condition ('capsulitis adhesiva hombro pdf'). The presence of numerous external PDF links, many pointing to benign Shopify domains but one to a malicious redirector, indicates a link farm or phishing attempt. No scripts were extracted, but the overall structure and heuristics point to a malicious document designed to redirect users to harmful content.

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=capsulitis+adhesiva+hombro+pdf In PDF document text
    • http://files.herbalmassagemartin.com/uploads/1/3/2/3/132302924/fa51185.pdfIn PDF document text
    • http://files.flos5dollarhouseofbling.com/uploads/1/3/1/4/131437005/guwigamufi-mileb-jusizafi-galoliv.pdfIn PDF document text
    • http://files.craftedcasesnc.com/uploads/1/3/2/6/132682745/wuranirupaj.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/1/0427/4293/9814/files/tidibibomezobole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/48861475228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/dibivojenatasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/26568136522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9401/files/16988358074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1070/9915/files/77934997136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/mowabepototalenanigavuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/85626723715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/41452054111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/filimixurofutawig.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_off0000905b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x905B 5280 bytes
SHA-256: 881cf8fad128ec59986155376083db8f91de0f9a901dc3c8cf331e130ad74a01
font_01_sfnt_off0000a251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA251 10440 bytes
SHA-256: b4a53c5b1f906bd56c2257616244bde02f411881cbe5bac7214b3426f79ac57a

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