Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a4e9926693945e1…

MALICIOUS

PDF

49.0 KB Created: 2020-08-16 18:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f10e5d379eca3aeaf26507eedffaa609 SHA-1: 8c414ea09a395659c801b1516709dca50ecfa174 SHA-256: 5a4e9926693945e16df276100f02fe44af7c8f8316d929d9446a50b7a0143b02
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized content farms, and one critical redirector link to 'ttraff.ru'. This suggests a phishing or scam attempt, likely to distribute further malware or lead users to malicious websites. The ML classifier strongly indicates maliciousness, and the embedded URL confirms the presence of a link within the document body.

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=because+i+love+you+korean+movie In PDF document text
    • http://files.thesoundingboardministry.com/uploads/1/3/2/8/132814097/b97a0ad.pdfIn PDF document text
    • http://ninefenu.osolnikmachinery.com/uploads/1/3/1/3/131398157/4abe327.pdfIn PDF document text
    • http://files.whistlepigsaloon.com/uploads/1/3/1/4/131413485/3707546.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/1/0436/5778/9605/files/13072246821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7405/1491/files/glencoe_mcgraw_hill_geometry_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/flight_simulator_x_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/vuxegabupevowukuped.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/broken_vessel_hillsong_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/1869169312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8062/9913/files/apologia_de_socrates_libro_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7296/9109/files/ford_factory_service_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7051/1521/files/baby_sinhala_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6847/9893/files/75470588049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/vipotosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/1420452618.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: swgrcplanning.org 4 samples

Related samples 7

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_off000058f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F1 12872 bytes
SHA-256: 97a3ef3a29e9db637ec638cdae961a9118e3f7700ac35caa829ac36bc598eb5b
font_01_sfnt_off0000806a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x806A 5220 bytes
SHA-256: 4d34ed0799e0242623cbe5bcd536c93a869cd905797138e78efe84951059fd44
font_02_sfnt_off00009218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9218 10704 bytes
SHA-256: ca89d9924184ea39cd80002330d149d6010ddd79d60366ed2c713723f66a48ca

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