Malicious PDF — malware analysis report

Static analysis result for SHA-256 45652b237a79b238…

MALICIOUS

PDF

37.2 KB Created: 2020-08-13 06:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75eaa1e275a0e5ea63e33e377c3912fa SHA-1: 779b4eea1c1043b4ed1895b9ec48177da38769bc SHA-256: 45652b237a79b2384395a6c05bb7becbf8105b79a429b9eeb6aa3684b04d102c
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the primary malicious URL. The presence of a link farm suggests an attempt to distribute malicious content widely.

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=three+billy+goats+gruff+masks+pdf In PDF document text
    • http://files.chrishendersoncoaching.com/uploads/1/3/2/6/132682897/patovepo.pdfIn PDF document text
    • http://files.suzannevyletel.com/uploads/1/3/0/7/130739633/lugotin_sizefis_metepubiwekas.pdfIn PDF document text
    • http://wororizom.focusonyou-online.net/uploads/1/3/0/7/130776167/9827474.pdfIn PDF document text
    • http://files.number120designs.com/uploads/1/3/1/4/131453396/jagivafeb.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/1/0438/4571/4077/files/71198153036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8628/9832/files/67878913172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8532/3683/files/94548971739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6612/0609/files/80011681023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/4251399701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0604/2023/files/chhattisgarh_news_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/63502232619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8941/5583/files/anemia_hemolitica_inmune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/26246313505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7629/6614/files/25444146192.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 5

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_off0000523a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x523A 5708 bytes
SHA-256: f9538d274230a0bb424df525935927111ee4f0fe14a814383804b4cfc5352e71
font_01_sfnt_off00006589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6589 10108 bytes
SHA-256: ae66a0f0496b96c86417c53b137f5716e13c5646730952dbfbcde6c9e1768215

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