Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbc43085b1d20540…

MALICIOUS

PDF

43.7 KB Created: 2020-07-29 11:04:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90f11f4383b79b324eee0eee764acf5e SHA-1: e670a0ba43d011300e6e4f6deb683f549693c91b SHA-256: cbc43085b1d20540ffbce915c01f474a6c959b06613b9d2f6f92fe39a133ddc7
194 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to a redirector and a link farm, indicating a phishing or social engineering attempt. The primary malicious link is a redirector designed to obscure the final destination. The document body, though heavily obfuscated, suggests a lure related to 'dungeons and dragons blank character sheet pdf'. The presence of numerous external PDF links further supports the link farm heuristic.

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=dungeons+and+dragons+blank+character+sheet+pdf In PDF document text
    • http://files.paulnieman.uk/uploads/1/3/0/7/130776162/mufamimixekamak_gexadikolibogew_basujeba_kurovukirisoz.pdfIn PDF document text
    • http://files.islandgirlcreates.com/uploads/1/3/2/3/132302928/lidipagedi.pdfIn PDF document text
    • http://files.mysiafilms.com/uploads/1/3/0/7/130776264/babijofegabarofosexa.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/1/0437/2443/9704/files/25369097308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/bupafurelekid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5505/5002/files/87589980646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/nitekajovum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/jepuvejake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/pukazalupisidedegudopet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1727/files/81101853056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1277/3272/files/3588136505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/23881568539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3026/5511/files/xamovirufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/texigusowemojegovivek.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 2

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_off00006b62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B62 5456 bytes
SHA-256: c0b53e023f74f181df4e0e1d26d266e251a29a47dc84257e637712b1e13c796b
font_01_sfnt_off00007de9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE9 10532 bytes
SHA-256: c3286b214b8ea5835970489c96db07aae1c3980d3053aa67f4c6d7687c8a94f3

Open this report in the interactive analyzer, or submit your own file for analysis.