Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a8aedc810a5311…

MALICIOUS

PDF

49.4 KB Created: 2020-08-06 17:08:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ddbe2fcda64a2796e743c155bfb7443 SHA-1: 77eadf83b4a3f73eccc468135402b0f4cd5a10ec SHA-256: 62a8aedc810a5311ca35b91e78f6101d5360e376e976bdca2409631dd477b38f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body and embedded links suggest a phishing attempt, masquerading as a banking reconciliation course to trick users into clicking malicious URLs. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=cours+sur+l+%25C3%25A9tat+de+rapprochement+bancaire+pdf In PDF document text
    • http://files.missinternationalaustralia.com.au/uploads/1/3/0/7/130740338/pidopoje-lijotebo.pdfIn PDF document text
    • http://files.brucehammock.net/uploads/1/3/0/7/130775509/solafelugubat-nalumes-tuwimabiji.pdfIn PDF document text
    • http://gurudot.emilyreynoldsart.com/uploads/1/3/1/6/131636612/neguvazuwur.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0434/0203/5354/files/wabuvuxopanasixurutaboru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/pokegasudumozererapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/55974579738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0605/files/57700046399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7143/9001/files/59837933289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/44429965762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wesani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/xigovepubuxaletemesojexok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/25054041036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/javideketa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0844/8919/files/kejijelefizuzuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/80249401855.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0F 1644 bytes
SHA-256: c4d1a53d937dc80cc27e4df479f32ca6cbda414fa749da358494056b5d309486
font_01_sfnt_off0000763e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x763E 5580 bytes
SHA-256: 62253996835a41e6b55787488867f39f66d3f4c66c778bf46d4c2fd70d9bfbd4
font_02_sfnt_off000088bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88BC 15104 bytes
SHA-256: 67b1c5d2c283f4060e1edc0e61007f4605a4e425e2197354e0ca48ede59c2fcc

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