Malicious PDF — malware analysis report

Static analysis result for SHA-256 929864f5609f8c29…

MALICIOUS

PDF

44.8 KB Created: 2020-08-13 22:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52010202e3709973468dd61a2b38a0f0 SHA-1: 2c101c1b90afa8be9ae5567ac6443e62a1f51554 SHA-256: 929864f5609f8c29ee22bbda3f6b2224cc509ee568bd8a2abb99a40d24754742
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=catholic+youth+bible+study+guide', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous Shopify-hosted PDF links indicates a potential SEO manipulation or content hosting strategy for malicious purposes.

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=catholic+youth+bible+study+guide In PDF document text
    • http://files.jessicanye.com/uploads/1/3/1/3/131379060/6671690.pdfIn PDF document text
    • http://varepu.motherswhimsy.com/uploads/1/3/1/4/131407164/9628947.pdfIn PDF document text
    • http://files.christaniehunterart.com/uploads/1/3/0/7/130739081/1138638.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/1/0434/0934/2621/files/bank_po_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/fubimifasegetazax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/funid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/18137738599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/a_first_course_in_abstract_algebra_fraleigh_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3647/3501/files/snapchat_password_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/40720942288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1673/2320/files/13806541020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/14943578416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4642/1158/files/venkatesa_suprabhatam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/gaponogixonesovotutibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.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_off000071f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F1 5252 bytes
SHA-256: c5fdfe0ce0136ad246de8d8f0ef13f7594b237d42beee5e597b0c8165d61ec86
font_01_sfnt_off000083c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C7 10236 bytes
SHA-256: a19af91c79b0341478ec984577a660883c0304346d782380932868398e977ff6