Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bde66f7b742a60f…

MALICIOUS

PDF

38.2 KB Created: 2020-08-14 18:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8b5ac8fccb8328db1651fecb6794992 SHA-1: 4b2a23d950ebedb3e68c2a7a092bba1f1768c87c SHA-256: 2bde66f7b742a60ff73f712ae00aa0f797e4c83b41b7762e4a44501df9d38846
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The presence of a link farm suggests an attempt to distribute malicious content or manipulate search results, rather than a typical user-facing lure.

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=detectorists+theme+sheet+music In PDF document text
    • http://bazifawav.ltjeducation.com/uploads/1/3/0/8/130874218/mutevifezuf_nilolududo_kugokovadono_punopupu.pdfIn PDF document text
    • http://luzotuma.couples-eft.com/uploads/1/3/1/3/131384429/d9877a82a43cf2.pdfIn PDF document text
    • http://tixalokiv.artcardstang.com/uploads/1/3/0/7/130774965/bf2035677.pdfIn PDF document text
    • http://files.sandiegodrumsetlessons.com/uploads/1/3/0/9/130969712/vawabakujodo.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/1/0432/3953/8851/files/briefcase_of_cash_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9468/7400/files/zufoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9362/files/11803505440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/46379677381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3144/3094/files/bumosedolodarodijara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2920/6939/files/html_report_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2105/6672/files/pejenuvifumedimalib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9646434013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/kagemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4341/7246/files/celi_3_livello_b2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2102/files/rubetasipimijik.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 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B90 4796 bytes
SHA-256: 2714b7d2f0557d0f511d0b62fa04de4763e1c84e21a62202e62195f53f04b748
font_01_sfnt_off00005bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBB 14552 bytes
SHA-256: 71af7bd4d68dbc37cfe01eb73f910187fd41c8b8e566b52f815e60f1bfc983ff

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