Malicious PDF — malware analysis report

Static analysis result for SHA-256 945d6f4c48b42cdc…

MALICIOUS

PDF

41.2 KB Created: 2020-09-13 08:31:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92c54de6e30b1ec9cfe042c07c406f13 SHA-1: b7efa8914e66b665fb47818d33cb3e1d95f339b8 SHA-256: 945d6f4c48b42cdc8b7a6bd77a2be27c6c405ce348ddd67cc9a5186024703005
184 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to suspicious domains and are likely part of a link farm designed to manipulate search engine results. One critical heuristic identified a link to known malicious redirector infrastructure. The document body contains text related to 'Smith middle school cleburne', suggesting a lure to attract specific users. No scripts were extracted from this sample.

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.club/wix?keyword=smith+middle+school+cleburne In PDF document text
    • http://jiledajof.bridgingthegapmovementllc.com/uploads/1/3/0/7/130776255/3278899.pdfIn PDF document text
    • http://files.narrativehumor.net/uploads/1/3/0/9/130969385/da430.pdfIn PDF document text
    • http://jalegi.exhemplarylife.com/uploads/1/3/1/4/131407995/nunutexaxibiwitusifu.pdfIn PDF document text
    • http://files.mylesgrp.com/uploads/1/3/1/4/131409508/51daf47a2693.pdfIn PDF document text
    • http://files.todayhousing.com/uploads/1/3/0/9/130969243/vanamogukalazak.pdfIn PDF document text
    • http://lizis.msculhane.com/uploads/1/3/1/3/131383613/0f312.pdfIn PDF document text
    • http://donowi.roxieriverawriter.com/uploads/1/3/1/4/131407135/1100153.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/1/0431/4529/8080/files/56559277460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/c_print_hex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/vejeretogavuka.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_05380624090343b5bca55777ce2fa750.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/21b4a7_2f43093fb38f42ac852f19d040fd7432.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e8e253_03a3760919164786b8a6d8bab962fa9d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/de02f3_686359ce8c7a457fa49da44b8ff22918.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_off00005525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5525 5092 bytes
SHA-256: f6594627145644f028f0d221e51531f95a9c8231369ba9e4b37917a9cb655dd3
font_01_sfnt_off00006642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6642 10468 bytes
SHA-256: 735012cea97e7b342e51ec8fb515134df5e5904174cc0b44cfab8bc1e38b8374
font_02_sfnt_off000089d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D3 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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