Malicious PDF — malware analysis report

Static analysis result for SHA-256 de6cbf5d11c06207…

MALICIOUS

PDF

45.2 KB Created: 2020-08-04 03:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43d8ec7f1f80e0d67f9c8584bec50514 SHA-1: 524dadf7a7df1773407776887fdead70239c4f99 SHA-256: de6cbf5d11c062071975953d97ac14542bdaa302aaed4027412ac26f2eeec7de
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic match for a malicious redirector link and a link farm, indicating it's designed to lead users to malicious sites. The document body and heuristics suggest an advance-fee scam lure, disguised as educational material. The primary malicious IOC is the redirector URL, which is used to funnel victims to further malicious content.

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=4th+grade+summer+math+review+pdf In PDF document text
    • http://files.holycow.studio/uploads/1/3/1/4/131437633/10e7e34c5.pdfIn PDF document text
    • http://zejavuwax.ginnyscoffeehouse.com/uploads/1/3/1/6/131606201/4645292.pdfIn PDF document text
    • http://files.herothrillshow.org/uploads/1/3/1/4/131483830/zufukidojadega.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/1/0438/0321/3984/files/murapadikaxapugabebimepeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2315/5878/files/62524033612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7853/2761/files/92369369421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/10104584173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3586/4736/files/coagulant_and_anticoagulant_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/number_system_aptitude_tricks_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0609/1673/files/82261427040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/figure_drawing_for_fashion_design_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/88302610077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2315/4850/files/tyranids_painting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/wovewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/jixosegodojulimapetojil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6871/8233/files/sugoguno.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_off00007109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7109 5568 bytes
SHA-256: d05955aa66731d6679be066652eed45a8b78d8f841c4e9a7e1676dbdc4e9a3fc
font_01_sfnt_off000083eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EB 10412 bytes
SHA-256: b893048b1710dc6aca8cfa0c56bd16826f50f7d0490b0debfa0019598431f97e

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