Malicious PDF — malware analysis report

Static analysis result for SHA-256 2277c6f541461ae0…

MALICIOUS

PDF

49.7 KB Created: 2020-07-29 21:04:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c5a60194761f67c530a8fed886fa4e1 SHA-1: 3b988f8b565d6e500bc80b531b947a91ceeacdbe SHA-256: 2277c6f541461ae09095f4659b05b72495b64bc32fc427a0dbd28a20b537dbeb
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented to the user as a download link for a "Six sigma yellow belt for dummies pdf". The file also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.

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=six+sigma+yellow+belt+for+dummies+pdf In PDF document text
    • http://files.seasportsbelize.com/uploads/1/3/1/3/131380120/japovi_debupitogugas_midozitarew.pdfIn PDF document text
    • http://files.drjustinbacklund.com/uploads/1/3/1/4/131406744/vukijejumulupoj.pdfIn PDF document text
    • http://files.zimengmusic.com/uploads/1/3/0/7/130775998/xemaleva.pdfIn PDF document text
    • http://files.casparmckeever.com/uploads/1/3/1/4/131438449/ca906f12.pdfIn PDF document text
    • http://files.creativedentaldesignsaz.com/uploads/1/3/2/7/132710683/f34d04b31a2.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/1/0427/6482/8838/files/13898227976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58580374151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/92313199177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/10737239586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/kufedexulisija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8597/8018/files/49352452980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/supoborawopis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/benisedikopibekeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3159/2088/files/42384043244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/wuxuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/budijitodosadelaked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/10494584280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/45528064999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6213/1878/files/furosazapewotikosodetubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.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_off00008096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8096 5640 bytes
SHA-256: 8b46736686be73641380d8a69f20d9f86d5f98da155e57a8e69b45b080d13f90
font_01_sfnt_off000093e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E0 10844 bytes
SHA-256: 704fe022f5054a3da9cbdf00be90905f744500d1e70c23d5e8d42b9fc1779956