Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82756ba307cf264…

MALICIOUS

PDF

32.2 KB Created: 2020-08-15 01:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b53b0c4e6c0e7b0b8525afe4833a459 SHA-1: 177234cc7bb04f5250f2a51d1f35fa58fdd435ac SHA-256: c82756ba307cf264f8c6312d651d121ad5f165a8d5a766e42ccfa38ac42dd030
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Hotel Rwanda' and the malicious URL, suggesting a lure to trick users into visiting potentially harmful sites. The presence of a link farm heuristic further indicates a malicious intent to redirect users.

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=hotel+rwanda+movie+questions+answers In PDF document text
    • http://nujubol.outrageousselfcare.com/uploads/1/3/0/8/130873782/a7a2f745.pdfIn PDF document text
    • http://files.ebfisher.com/uploads/1/3/0/7/130775992/nomewi.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/1/0434/9231/1206/files/56904964908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/66009513914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5901/2006/files/hemolytic_anemias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0602/4101/files/minecraft_launch_options.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/vejivalazazusemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/feviri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/bsc_maths_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/zupatixeze.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_off00004214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4214 5208 bytes
SHA-256: 0a482f272d7c2442972fd6646e4b6e23d6f9127dab6677056145769b1b8c0812
font_01_sfnt_off000053bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53BB 9508 bytes
SHA-256: 11378dc79ff8c48d30176e00dcb3af3d5847fdf6d69d70e64b5d93d1dd8b78c7

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