Malicious PDF — malware analysis report

Static analysis result for SHA-256 159a677edca1422a…

MALICIOUS

PDF

41.9 KB Created: 2020-08-03 03:12:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b6c10793fc05e32b7578bfc00acd7cf SHA-1: 5ae129fb0264f6f49f67ef33fd731b28eac3721c SHA-256: 159a677edca1422af93041814963ec739ce53b862e296a07df1267cd26460fef
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document employs a social engineering lure, promising a download for 'shell shockers aimbot download' to entice users to click embedded links. The primary link, https://ttraff.ru/pify?keyword=shell+shockers+aimbot+download, is identified as a malicious redirector, indicating a likely attempt to deliver malware or phish for credentials. The document also contains a large number of links to other PDFs, suggesting it is part of a link farm designed to improve SEO for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=shell+shockers+aimbot+download In PDF document text
    • http://files.arabesquelondon.com/uploads/1/3/0/7/130775635/tuxefodozewizukatema.pdfIn PDF document text
    • http://files.pendeenpottery.co.uk/uploads/1/3/2/6/132681342/labovukajov_vebaxemomewove_gemokofov_binogeba.pdfIn PDF document text
    • http://files.myjamesandrews.com/uploads/1/3/2/7/132712661/4258114.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/utorrent_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/sears_riding_mower_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2746/2301/files/recessive_epistasis_ratio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83759083977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6737/5770/files/zupexotavidowudasanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4682/1278/files/73982430055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/15074135258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/nisipufale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2783/2733/files/wejuvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/xulepipatinuxepimukite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6777/5905/files/xuvegozas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/pixuworuma.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5875 5364 bytes
SHA-256: ac92f6cc8d01594fcfd1a05078b9822f15993199e25ee1d18912140adeb58766
font_01_sfnt_off00006a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8D 9968 bytes
SHA-256: 248b27d9f265feb84f1da15dfcc751566fdecd64dda4773c25423421a8368dc2
font_02_sfnt_off00008cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBC 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3