Malicious PDF — malware analysis report

Static analysis result for SHA-256 11f30ec7df0e40c3…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 09:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b64201bb3ac257370254134aeaeec4df SHA-1: e83193f77cb125cc4a244ca5b1b220af3c44b77c SHA-256: 11f30ec7df0e40c3ef5d3050fed7cb787ef4ebac20c9b1d423085c11a3812a96
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to an SEO redirector infrastructure. The primary redirector URL, https://ttraff.ru/pify?keyword=giza+cotton+sheet+sets, is flagged as malicious and likely serves as a lure to download further malicious content. The document body, though heavily obfuscated, contains the same lure text and URLs, indicating a phishing or scam attempt.

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=giza+cotton+sheet+sets In PDF document text
    • http://files.magistrasolomon.org/uploads/1/3/0/8/130873983/gixopora-wijikiwiratobok.pdfIn PDF document text
    • http://files.teamstudy.org/uploads/1/3/0/7/130775257/2895106.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/1/0450/1841/5254/files/vakajenuzebijowoposete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/kulopozofemuniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7400/2848/files/xanapulapogukuluwebot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/72866363379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/migewuxowepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/xudapel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6912/6309/files/kevomagil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8617/files/24012860222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/83045178167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/50810454614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0679/4651/files/64880405718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/kitegikum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/cyclone_baby_bash.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB8 4840 bytes
SHA-256: 023fab500101cb8a1fa78cac462850a4843d5d9ce8ee1a06f9e4498958de89c6
font_01_sfnt_off00007e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E35 10288 bytes
SHA-256: d83a85cba965d8805c240240ab7629f8cfb5e95860cf863f50c9739b263f55f9