Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d58f07cf9e1b7cf…

MALICIOUS

PDF

50.6 KB Created: 2020-08-05 03:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29cd03554c257695345d4a0b82ba5c9a SHA-1: 4cb60fb552ad9b6579691ca37c4d31ae79ea7dcf SHA-256: 7d58f07cf9e1b7cf1f0f0c4cfc35c6ffdc980c0307722b26326e8871bd92f0aa
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector URL known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the redirector URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site disguised as a download. No scripts were extracted, but the primary function appears to be directing users to malicious infrastructure.

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=spirulina+bioreactor+pdf In PDF document text
    • http://files.gabrielledeveaux.com/uploads/1/3/2/7/132740399/dasegewerugebi.pdfIn PDF document text
    • http://files.computerscpr.com/uploads/1/3/2/7/132740860/xubujolodosetejokuv.pdfIn PDF document text
    • http://mufim.resumeswithrashada.com/uploads/1/3/0/8/130874254/665030d6f0f1d22.pdfIn PDF document text
    • http://files.mj2startups.com/uploads/1/3/1/3/131379236/2813915.pdfIn PDF document text
    • http://files.crookedarrowpress.com/uploads/1/3/0/7/130775825/venutekota.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/1/0430/0986/7929/files/vamuxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20011772627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/rafoliwufobapurawuvezamaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0041/9736/files/83475424921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0831/8878/files/54471082606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8876/5337/files/active_and_passive_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/90884464167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7831/files/25439014513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/bisage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5878/1590/files/pokemaguburavuxuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9447/files/32842218798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/telotexe.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_off00007b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9A 5096 bytes
SHA-256: 2a28c7a0de5d4d8cf6a8cbb1f0af6be1f9054910859e01ff416d525362ec35c2
font_01_sfnt_off00008ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE8 10108 bytes
SHA-256: 90a3df78cc8c793375bce403eba1da1e22f2fc554fe914763cf9110bfdd2474f
font_02_sfnt_off0000af88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF88 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2