Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f70d4bb5f746e60…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 09:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6eb32795c310cb65f831c43e1828d728 SHA-1: b29d492af2b7a06362fce4d8a027109e349822b7 SHA-256: 2f70d4bb5f746e60c0fe5cf44020ab13452d9ab29312e45475099d548ce6461c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body also contains this URL, suggesting it's the primary lure. Additionally, a PDF link farm heuristic indicates the document is designed to host numerous external links, likely for SEO manipulation or distributing malicious content. The presence of multiple Shopify URLs, some confirmed benign and others unknown, suggests an attempt to blend in with legitimate content while hosting the malicious redirector.

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=cambridge+academic+english+upper+intermediate+pdf+download In PDF document text
    • http://files.netanelbellaishe.com/uploads/1/3/2/8/132815207/2504768.pdfIn PDF document text
    • http://files.hallingburychurches.co.uk/uploads/1/3/1/4/131409385/2468126.pdfIn PDF document text
    • http://files.djmmarketplace.org/uploads/1/3/2/7/132741389/40a492d761dc786.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/1/0437/7968/6549/files/vejixoferijif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/amd_radeon_hd_5450_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8402/files/install_java_raspberry_pi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/47761180747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/povupezagonuxumujutodig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0259/2410/files/mijunawetalezitabaxuziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6345/6423/files/java_tutorial_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/34988921231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/razuwexobijagameropezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5480/7717/files/add_heroku_remote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/78585365417.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000542e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x542E 5708 bytes
SHA-256: b177ef29e9e52f035de33a43adc7642a2d7f2e345f218acbb03d84618df886e4
font_01_sfnt_off00006776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6776 14840 bytes
SHA-256: 7e1847e76213601bcaf1570e6d5ed340083bced86b112e7b0f8a57f2f417f9f9
font_02_sfnt_off00009102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9102 16132 bytes
SHA-256: 47d17e904bf57b7df8f68bf20ab575e1236a775a23d083e86a2b3197c3f07e95