Malicious PDF — malware analysis report

Static analysis result for SHA-256 6feb9566af1a5381…

MALICIOUS

PDF

50.9 KB Created: 2020-08-01 21:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5f8e4fe77f9e3df3d87b407bf12c235 SHA-1: 7a212020185fed8b81375fc6be89a4d8155689dd SHA-256: 6feb9566af1a538147dad07c5d8b9bc64936ebf21a191f77ef0a9b871c356c6b
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified by heuristics as a redirector and part of a link farm. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the file is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

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.com/pify?keyword=adventure+time+season+3 In PDF document text
    • http://files.risingstars-nursery.org/uploads/1/3/1/4/131407572/gaxonelofet_fugebabadegepu_rumanibodowuj.pdfIn PDF document text
    • http://files.crossrdcanine.ca/uploads/1/3/1/4/131407767/9346152.pdfIn PDF document text
    • http://files.mariasolebianco.com/uploads/1/3/1/3/131379113/vitulopu-niwetiwa-tujavorowozavud.pdfIn PDF document text
    • http://files.evandusenportfolio.com/uploads/1/3/1/4/131437633/gowidogudewofu-lodufesuzugip-gexevi-kakusokitikej.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/1/0430/8549/6482/files/64006916751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/nitozotitupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8343/files/83882323536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/champion_air_compressor_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3482/9223/files/gafezuvalonumaporenizun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/43274519272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/jotuziwujuvemefowaxakaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7050/2565/files/tegigijoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9564/5589/files/wimel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.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_off000075ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75AB 5036 bytes
SHA-256: ad92b911132cf95604b8efc110e2faaf3018ae4b0e04a40305ddc3120b835e17
font_01_sfnt_off000086af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AF 13060 bytes
SHA-256: 70b232f213b8d0f7a6c818777e00cd48ada1ba781c03d6a1a0aa3a0303b0600d
font_02_sfnt_off0000b0a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0A0 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176