Malicious PDF — malware analysis report

Static analysis result for SHA-256 05f4884a2500e4d8…

MALICIOUS

PDF

40.1 KB Created: 2020-08-25 19:06:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: daab74715c98f578b34bca08901a9848 SHA-1: e260b7042855e2de4d86ee7301569e376ae11c59 SHA-256: 05f4884a2500e4d822771b0dc672bf20659be97c92ae32886216f7a4a6eb50f4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=caps+lock+minimizes+overwatch'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous other PDF links further indicates a link farm designed to distribute malicious content or phish users.

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=caps+lock+minimizes+overwatch In PDF document text
    • http://tulalo.ismaakarate.co.uk/uploads/1/3/1/1/131163559/3890704.pdfIn PDF document text
    • http://lodosax.mismacounsellingservice.com/uploads/1/3/0/8/130813055/2640119.pdfIn PDF document text
    • http://files.elawithmsionut.com/uploads/1/3/0/7/130738876/ab3b33f76d2.pdfIn PDF document text
    • http://files.dedosdoamerica.com/uploads/1/3/1/0/131070792/guzan-ligaledakuf-sugegiwaxemude-wukalemub.pdfIn PDF document text
    • http://nuzodamo.williamsremodeling.com/uploads/1/3/1/4/131482975/jagovuwodes-ledos-wogerovupo-gizagasekusogak.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/1/0434/6196/8025/files/ramuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/38776036945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1405/2247/files/beyond_the_aquila_rift_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/oxford_maths_book_for_class_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4475/6901/files/duwekogipisuwopitagoruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1143/0809/files/ex_mannan_miracle_crack_2._58.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/asme_y14._5m-_1994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2852/8799/files/bubefojil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/18912868852.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 5

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_off00005ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE1 5344 bytes
SHA-256: 2506c12081448fa99000859559fe58202a938e09c87aa8e689c22fa878fe55b6
font_01_sfnt_off000070fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FC 10224 bytes
SHA-256: 0e588f08b57ea5f5ec3c74e542b7460133c40b6bcbaa7999c3ec32dc0dff8014

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