Malicious PDF — malware analysis report

Static analysis result for SHA-256 4564b79345f896e0…

MALICIOUS

PDF

38.8 KB Created: 2020-08-22 05:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d053d02f41640d616ad3e7c4d1c05125 SHA-1: 5fbcd9cc76359504ce6fd774245bff118ccffccb SHA-256: 4564b79345f896e07a50b2f2f87b4c32b0df13f31ae61203d1d69ba7563096de
194 Risk Score

Malware Insights

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

This PDF file contains a link farm designed to redirect users to malicious infrastructure, masquerading as a game guide. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the malicious URL and references to other benign-looking PDF files, likely part of a link farm strategy. The ML classifier strongly indicates maliciousness.

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.ru/pify?keyword=dragon+age+inquisition+nightmare+leveling+guide In PDF document text
    • http://files.taehohwang.com/uploads/1/3/1/8/131856365/558e1635fd.pdfIn PDF document text
    • http://files.ballatsmithycottage.com/uploads/1/3/1/3/131379181/moxalare_wobonop.pdfIn PDF document text
    • http://files.njmco.net/uploads/1/3/1/6/131636612/0e57d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/sapelajuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/beautician_uniform_black.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64830269039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2738/9851/files/34784537372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/rijuxuxunisefurejus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/todebugub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/21039560322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/77959561162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2532/4439/files/literatura_e_resistncia_alfredo_bosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/62095096098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8524/2261/files/sizobibobiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/26699449465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6530/3455/files/90449552407.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
🗂 Part of campaign: ballatsmithycottage.com 4 samples

Related samples 5

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_off00004bd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD1 5304 bytes
SHA-256: 28b8b5a1f3119f2fdcdbedcec18cd705eca9035f0be2a90094e2f53046ab2bcf
font_01_sfnt_off00005da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA8 10160 bytes
SHA-256: a04d72c54375e90afada3116f22c73d7c52822c1d33c995fd3a6077cf267c480
font_02_sfnt_off00008010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8010 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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