Malicious PDF — malware analysis report

Static analysis result for SHA-256 309dfecae2298680…

MALICIOUS

PDF

92.6 KB Created: 2021-05-07 05:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a8ca9a1c34893b7887d29c7601e89a0 SHA-1: 22108749523eb2121099b3ba10a830c46378c9fe SHA-256: 309dfecae22986800cfd5d2f512b3e527eed8daa4204724daef5da081a9d38e0
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to disposable hosting services, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The embedded URLs are designed to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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.
  • 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://seumenha.ru/strik?utm_term=bodas+de+sangre+descripcion+fisica+de+los+personajes PDF link annotation
    • https://mujunoba.weebly.com/uploads/1/3/2/6/132682006/3461520.pdfIn PDF document text
    • https://remogomati.weebly.com/uploads/1/3/4/7/134748537/nimivagebida.pdfIn PDF document text
    • https://lemefinafotujux.weebly.com/uploads/1/3/4/6/134606632/9893177.pdfIn PDF document text
    • https://nemelodanunoju.weebly.com/uploads/1/3/0/8/130874480/3123160.pdfIn PDF document text
    • http://axecheat5.xyz/aliexpress_coupon_codeguod6.pdfIn PDF document text
    • https://rosujukasawi.weebly.com/uploads/1/3/5/3/135301647/toxemiruwebilox_soguribu_goxebuzepupa.pdfIn PDF document text
    • http://stav-games.ru/hl-2270dw_brother_printer_driverzb69a.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/jacdec_airline_safety_ranking_2020jj3tk.pdfIn PDF document text
    • http://virubedasiv.22web.org/bitlocker_android_apk.pdfIn PDF document text
    • https://jikuvubavul.weebly.com/uploads/1/3/5/9/135964228/3328bd807d.pdfIn PDF document text
    • http://gratoramaa.space/donde_estas_bernadette_descargartu7z6.pdfIn PDF document text
    • http://technodom11.com/puforipudixir2sv2s.pdfIn PDF document text
    • https://sesuxaned.weebly.com/uploads/1/3/5/3/135349378/vepurizuxawe-piwefi.pdfIn PDF document text
    • https://lujinelux.weebly.com/uploads/1/3/4/3/134361227/xobabadifiv.pdfIn PDF document text
    • https://jenodaxadow.weebly.com/uploads/1/3/4/0/134012655/411277.pdfIn PDF document text
    • http://2022god.com/48347000395ta0v5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7f793f8f-877f-420e-851b-8bae9ea62a4d.filesusr.com/ugd/78c764_f6bb348888674ad4bbab3c70b6f60fb8.pdf?index=trueIn PDF document text
    • https://f2182bdb-ca8e-4fe7-b379-f84e14eeb57e.filesusr.com/ugd/026bcc_af842ff263ab4b12adf030bf33cc90eb.pdf?index=trueIn PDF document text
    • http://defasawune.epizy.com/51518645338.pdfIn PDF document text
    • http://jubadune.rf.gd/18108643040.pdfIn PDF document text
    • https://6ce95562-7558-49ee-a7b0-b3003db3b0e9.filesusr.com/ugd/d13e1f_f672e495c28947568fead4401cf47fc9.pdf?index=trueIn PDF document text
    • https://d03ec42c-8b93-48d3-a61e-9aee396c0db4.filesusr.com/ugd/1e557c_cd7aecc55f32448094ba2a9d4f3604a7.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_off00012ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AB6 5448 bytes
SHA-256: e477a1e27467a933eec0868aa6fb02e39ce47b8a27a1c289ec2a15385a19f016
font_01_sfnt_off00013d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D5A 12384 bytes
SHA-256: 2511b38f9011abc8ea40b4b6c5367bc773917acb92b48c03fef78087f33ec8d5