Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c23b55f248d514c…

MALICIOUS

PDF

39.4 KB Created: 2020-08-14 01:58:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 345d7117e916e6ea5c31e0fd651339c6 SHA-1: 942b3979a47b454018f963af1c52527982c87368 SHA-256: 7c23b55f248d514c0f77bc097d9287d0722f34a5101fa8ef1f6bb12f68b6ef60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector designed for SEO spam. The document body and heuristics indicate a lure for a game hack, which is a common tactic for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=archero+hack+apk In PDF document text
    • http://files.bakercfoadvisory.com/uploads/1/3/1/3/131384424/7140bb.pdfIn PDF document text
    • http://files.waveloopart.com/uploads/1/3/2/7/132740343/883d0.pdfIn PDF document text
    • http://files.faumconline.net/uploads/1/3/2/8/132814544/3061338.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/1/0432/4104/6171/files/27560730039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2236/6366/files/cell_biology_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8512/2984/files/catherine_bell_naked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5038/2998/files/wumitenegeletokedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/the_college_panda_s_act_math_advanced_guide_and_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0488/6166/files/97874952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/bluetooth_for_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1386/4615/files/marketing_branding_strategies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9953/files/microsoft_visual_c_2008_redistributable_x64.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9948/8423/files/figudufatiramo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/22549367237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/73944241510.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 8

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_off00005e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9A 4864 bytes
SHA-256: 52996dcd80d75710fb6634f319257a12b77428dcdb05269ba418f4ed260f6252
font_01_sfnt_off00006f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F16 10024 bytes
SHA-256: 6c7198a3a7f7ea3b8f976e90c76b03daae7f2678490d0cdf7e8a3dc0c67af71c

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