Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a5ee491a55437e…

MALICIOUS

PDF

82.6 KB Created: 2021-03-17 09:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d92ff39fbd5dca8dae103d2be1ea388 SHA-1: e28d003afd137a952c5bc6aa093a1ccf04baac24 SHA-256: e9a5ee491a55437e3206f6c43745c03036c486bc6f7600c35c3cb0c36009036a
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many hosted on disposable domains, and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though heavily obfuscated, appears to be a lure related to home inspection costs, directing users to external links. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing campaign designed to lead victims to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/strik?utm_term=how+much+does+a+new+home+inspection+cost PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393026/normal_604e24b96d40c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412388/normal_6035b52e869e3.pdfIn PDF document text
    • http://tumexade.22web.org/48545700715.pdfIn PDF document text
    • http://susasami.22web.org/berlitz_intermediate_spanish.pdfIn PDF document text
    • http://doxisodezezaku.iblogger.org/lgebra_y_trigonometra_con_geometra_analtica_ejercicios_resueltos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379030/normal_5fee480d69728.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425784/normal_60016628d0daa.pdfIn PDF document text
    • http://organic100.fun/can_an_ipod_nano_battery_be_replacedukopi.pdfIn PDF document text
    • http://avit0.pro/43659107007u53vq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445118/normal_604dadcf983db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413231/normal_6003be3383904.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386834/normal_601c644045260.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495691/normal_5fe7e76fc2dfa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://namavorudil.epizy.com/rigivopepadeviradix.pdfIn PDF document text
    • http://pomagupivedib.epizy.com/ankhon_dekhi_full_movie_filmyzilla.pdfIn PDF document text
    • http://semimuwido.epizy.com/purple_hibiscus_symbolism_quotes.pdfIn PDF document text
    • https://48bd7725-9370-4d18-884e-e75d7b70c9c4.filesusr.com/ugd/f241d9_9e7c110314394eb2ba0807e1814fb7e0.pdf?index=trueIn PDF document text
    • https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_008915a5de874fe7979ce7f73777141d.pdf?index=trueIn PDF document text
    • https://a1c9bafd-2917-4c1b-b79c-a4b44a941470.filesusr.com/ugd/f0f215_5cb45a5a018e42629410c158faec6221.pdf?index=trueIn PDF document text
    • http://wefazor.epizy.com/71909792284.pdfIn PDF document text
    • http://rijogutigoxek.epizy.com/fifty_shades_of_grey_2_full_movie_online_free_greek_subs.pdfIn PDF document text
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_cf972ca4f1a34fe3be516ee03ccef9c3.pdf?index=trueIn PDF document text
    • http://xujogefup.rf.gd/html5_frameset_template.pdfIn PDF document text
    • http://bugavujozi.epizy.com/12121728711.pdfIn PDF document text
    • https://e9155d39-0f7d-4366-9ee8-34e17fe3d773.filesusr.com/ugd/9e05b8_2bac14bcdd194c4e9bfb9b54123c586b.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10391 5240 bytes
SHA-256: b24f0891ee63f82d7cbadce6d3fe9f380e2cbc7d3ae8439097b0c22c6e64df9b
font_01_sfnt_off0001154c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1154C 11208 bytes
SHA-256: 895cc89bf9477c38e0e8f814be34fa33ebbd2d5f0bc5cade60a902fea1663088