Malicious PDF — malware analysis report

Static analysis result for SHA-256 9211c11de150e2df…

MALICIOUS

PDF

71.3 KB Created: 2020-08-21 05:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39efdf9943a875c9686c41057405f47a SHA-1: 54c7297b5d9edc76534961531ca6e842a2cdfeb4 SHA-256: 9211c11de150e2df60fe1912d1ac9ecd1c8ad5ff67fcb7cb752f0df5d8167da4
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting an attempt to manipulate search engine results or distribute content through a large number of links. The presence of the malicious redirector URL further supports a malicious intent, 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.cc/pify?keyword=apink+songs+free In PDF document text
    • http://files.mohairslim.com/uploads/1/3/2/3/132303068/14ee7eb7a126.pdfIn PDF document text
    • http://files.jamesekdahl.com/uploads/1/3/1/0/131071063/5865781.pdfIn PDF document text
    • http://files.mindbodydefensechicago.com/uploads/1/3/0/7/130775245/puwivax.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/1/0429/2041/1289/files/red_sea_rules_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/sexy_girl_png.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1002/2814/files/adobe_printer_free_download_for_windows_7_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/arthur_c._clarke_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4043/files/22478918582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/85479192824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/vufafatekutaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5392/2981/files/28580140898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/jifasipadawazavenuj.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7F 21556 bytes
SHA-256: 5cebf38bc9baf987655bf645d2cbae48700d288577c28096ec8f59f6df9bccfd
font_01_sfnt_off0000cd0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0C 4880 bytes
SHA-256: 50682c02d31769230bae821c79112a7abc8594d3963e4fc41e57546178cab238
font_02_sfnt_off0000ddc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC1 16316 bytes
SHA-256: ef7e60c84230b41252c24909b19ef07599d70de17477267ef191e4c8efa5c016

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