Malicious PDF — malware analysis report

Static analysis result for SHA-256 96b1f1151bb12d85…

MALICIOUS

PDF

79.7 KB Created: 2021-02-22 14:22:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c05825a87e6dc8fbe956f9c09f0d8b2 SHA-1: be55c46b5d24f7339f8ef7ee22be0aff27ff29cf SHA-256: 96b1f1151bb12d8525fb386e2ebf7470aaee74c6ba7d15976f3a4b98f26a3507
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable hosting or redirectors, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a common phishing or malware distribution technique.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/strik?utm_term=dance+concert+critique+essay+example PDF link annotation
    • https://lelamibi.weebly.com/uploads/1/3/0/7/130738841/xasejid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457861/normal_5fe2bc40b9ada.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/hejjhbi/glow_hockey_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/regavebike/CZY1Jgj/road_to_legend_delve_review.pdfIn PDF document text
    • http://guitar.su/71317059423c4dbr.pdfIn PDF document text
    • http://vovpomnim.ru/vagolutedonevalwlcb5.pdfIn PDF document text
    • http://masalev.ru/700026272339ih98.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/ZVifdeM/amtrak_auto_train_motorcycle_cost.pdfIn PDF document text
    • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/308c4638a5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495558/normal_60316c4497f23.pdfIn PDF document text
    • https://cdn.sqhk.co/dufolatik/fheyVIZ/blake_shelton_best_music_offline_ringtones.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480414/normal_601ab0e98c27e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466398/normal_5ff8087b025cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495999/normal_5fe55d81b58d3.pdfIn PDF document text
    • https://xavitutasufeja.weebly.com/uploads/1/3/4/6/134669981/1a55d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393790/normal_60129d9a16bf2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tumitodutib.rf.gd/amplificador_de_instrumentacion_con_lm324.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/babesivasigopoto.pdfIn PDF document text
    • http://bixodog.rf.gd/grade_6_science_reading_comprehension_worksheets.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_off0000fb6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB6D 5376 bytes
SHA-256: bfe21446a19e19cd614130240b147c1cfbaf06c8239d7c2550b19b0995cdf774
font_01_sfnt_off00010db3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB3 10500 bytes
SHA-256: 26b97f01acff4e53e97e38caa2d2fb8c2fd70d4ffc7bf2b6e52ca1ef225c254a

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