Malicious PDF — malware analysis report

Static analysis result for SHA-256 7483d0e8a258d6a2…

MALICIOUS

PDF

53.7 KB Created: 2020-07-25 14:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b7e41184ba9356e3eb91bd91598fe07 SHA-1: 1020c25bbc7c1ec20b0353d5d7ce536be0a5c251 SHA-256: 7483d0e8a258d6a2c7322c293a0b8120bc5944ddaf65623fb175814ebd091bc6
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to lure users to malicious sites. The primary malicious URL identified is https://ttraff.ru/pify?keyword=castelli%2527+s+virgin+widow+pdf, which is linked to known malicious infrastructure. The document body, though heavily obfuscated, suggests a lure related to a 'virgin widow pdf'. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=castelli%2527+s+virgin+widow+pdf In PDF document text
    • http://files.donmelnychuk.com/uploads/1/3/1/3/131381066/aad9a75d83.pdfIn PDF document text
    • http://files.jerryjonesguitars.com/uploads/1/3/2/6/132681436/fapixumiwezewip_zuvetuwigapikim.pdfIn PDF document text
    • http://files.sweatyeyeballs.com/uploads/1/3/1/0/131069819/paluvobubebabexowu.pdfIn PDF document text
    • http://files.srimayogaschool.com.au/uploads/1/3/1/8/131856195/647294c5a543.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/1/0430/0469/0581/files/16626867559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4189/7113/files/80364962170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/gatopusuluxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7875/4199/files/80506467954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/75044316403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7750/9020/files/ximamanodimisik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wimuwukewamofese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/10144136870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/38207540285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/bezodapopukunem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9027/9574/files/tawekuzalexisajanerawe.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
🗂 Part of campaign: jerryjonesguitars.com 3 samples

Related samples 6

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_off00009717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9717 5204 bytes
SHA-256: b05da83c7249396c025432d55c13b8d71146d8f48c87166292deb2e24621d682
font_01_sfnt_off0000a8f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F6 9664 bytes
SHA-256: 5bcd95607e2e7abdb42b9adb1a851c234828f2562aeda61db5f689b1e3f605d2

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