Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed751fdce5ac89b…

MALICIOUS

PDF

45.3 KB Created: 2020-09-19 02:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c649a473bea7c45e71d359d1c26bba2 SHA-1: cb27009c10472965ce2dd82b9c477382c3dff7ca SHA-256: 7ed751fdce5ac89b9717ceec96fd5a77972f76a866e8aebb5f7b1db35fe8ff33
184 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, masquerading as an answer key to a worksheet. These links lead to a redirector and a link farm hosted on disposable domains, indicating a phishing or scam attempt. 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/wix?keyword=synthetic+division+worksheet+answer+key In PDF document text
    • http://files.kcpanhel.com/uploads/1/3/2/8/132815961/1055807.pdfIn PDF document text
    • http://kexizap.elizabethmurray.us/uploads/1/3/1/4/131453674/6656803.pdfIn PDF document text
    • http://vedoxika.taylorwood.co/uploads/1/3/2/8/132814342/xiroduxififijekamigu.pdfIn PDF document text
    • http://files.ssixenterprises.com/uploads/1/3/0/7/130739564/besemopogi.pdfIn PDF document text
    • http://files.centralcitychamber.org/uploads/1/3/2/6/132681536/kafeliwesifiwov.pdfIn PDF document text
    • http://fibun.decide2evolve.com/uploads/1/3/1/8/131871979/166205.pdfIn PDF document text
    • http://fakufumof.psr.camp/uploads/1/3/0/8/130874197/f066c.pdfIn PDF document text
    • http://fedejeto.sinnersandsaintsconsulting.com/uploads/1/3/1/3/131382700/kovozosugewomuxuzufa.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://f9fe4c64-c7f3-4371-b764-56b848428cbe.filesusr.com/ugd/3e87bf_743c36e6f7204304bde929c1a0221e52.pdf?index=trueIn PDF document text
    • https://468a6eb5-8586-4a86-b60c-6bee64e84b06.filesusr.com/ugd/610d21_30f0fd092b594a128a76266673c7e74e.pdf?index=trueIn PDF document text
    • https://da4dc128-22ff-4aa3-9ebf-e04e18cee8b4.filesusr.com/ugd/1e4819_9dc1f5d02647477eb46cfe875f910f6c.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/6583/9268/files/on_becoming_babywise_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0134/files/baecation_a_boogie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/aadhar_card_to_jpg.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6227 5204 bytes
SHA-256: d9a63ad104d9dc4b526aa12aaa86b839c0de7c2ad7a24dd3d1c65f0b6659d243
font_01_sfnt_off000073dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DD 11228 bytes
SHA-256: 61efe71e940ef1dddf8629770a40fdd40e2e2ada0b19211dbeef97705512a150
font_02_sfnt_off00009a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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