Malicious PDF — malware analysis report

Static analysis result for SHA-256 786e29dadf541115…

MALICIOUS

PDF

165.6 KB Created: 2021-04-08 04:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f74c5a5f094d1fdbc913e6a5efe8001 SHA-1: e6b53910352ab74f16d05fd1f21077b67162c49f SHA-256: 786e29dadf541115c30cca04ac5875dbcf62370970c46cfeb1a5ce6711919e22
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 ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly indicates maliciousness. The presence of external URIs and the heuristic for a link farm on disposable hosting suggest this document is designed to redirect users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/123?utm_term=acrobat+pdf++for+windows+7 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374685/normal_60404b3e3ce09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454052/normal_5fde70d8c2a06.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369788/normal_5ff9294defe84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497395/normal_6065eb367b148.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/6hdjhgf/totopos_restaurant_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/how_do_you_write_a_follow_up_email_after_an_interview.pdfIn PDF document text
    • http://refowozawigut.22web.org/17446499261.pdfIn PDF document text
    • http://gunepevoxop.66ghz.com/how_to_clean_filter_of_whirlpool_dishwasher.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/bosevotarirejiwujipiz.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/jtpja5B/6339506833.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/vekkali_amman_hd_video_songs_free.pdfIn PDF document text
    • http://vezagoxutejoza.66ghz.com/bupenomadapajigoligoru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477173/normal_602efca36b2f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473035/normal_60334ef2e6366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392860/normal_602e07c67b8e8.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/zemoris.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bexadujozopu.epizy.com/3886763562.pdfIn PDF document text
    • http://sesugemedolaf.rf.gd/merchant_of_venice_summary_act_3_scene_5.pdfIn PDF document text
    • http://vaxikexuso.rf.gd/42451246295.pdfIn PDF document text
    • http://nilovumilof.epizy.com/87541415799.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF038 117944 bytes
SHA-256: d891c861ead894d5684928ab51a29f60df5b28ecab32087e6109f1973b2f4a48
font_01_sfnt_off00024f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24F58 5420 bytes
SHA-256: 1383908fdc15b8f465230c6838337501199a380a33a0442d90c5e14bd6690078
font_02_sfnt_off000261ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x261ED 10604 bytes
SHA-256: f827f8ae523bc4d530eac82674a391f85fa85abdb66cac4b448e198ecf48fba5