Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80ace438d93b763…

MALICIOUS

PDF

89.1 KB Created: 2021-04-05 04:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b1b3d40c2e5f4fcf83c9d12e751e8d35 SHA-1: de9e2edf4513f5d70e27796e53117828fa69a4db SHA-256: f80ace438d93b763f871b5fc0509e6adff2aaff24d12dd2677fcfa53ce08e9af
186 Risk Score
Tags
free-cdn-ebook-manual-lure

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 are hosted on disposable domains or redirectors, indicating a link farm designed for SEO manipulation or phishing. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jumiwimov.ru/strik?utm_term=how+to+search+songs+on+beat+saber+oculus+quest+2 PDF link annotation
    • https://cdn.sqhk.co/ponesigis/ifs9Oii/guilty_gear_strive_beta_test.pdfIn PDF document text
    • http://pop-marketplace.ru/under_the_dome_season_2_episode_7_watch_online24fl8.pdfIn PDF document text
    • https://zukodefikarux.weebly.com/uploads/1/3/4/4/134498552/jomuxojexon_nogunukamezas.pdfIn PDF document text
    • https://mizevazorabij.weebly.com/uploads/1/3/5/3/135347525/xuwopupu_kevipitofuwuv.pdfIn PDF document text
    • https://vijibasotaxeja.weebly.com/uploads/1/3/5/9/135990507/jonitovoxevuzovoge.pdfIn PDF document text
    • https://cdn.sqhk.co/lafugafeniki/Igdwhfa/monizoma.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/eibj1jh/30604485106.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/dZjdjaI/addison_rae_wallpaper_ps4.pdfIn PDF document text
    • http://callipakk2.site/52908607039hdvwz.pdfIn PDF document text
    • https://wimukevefom.weebly.com/uploads/1/3/0/7/130739067/dumax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/13122df9-3333-4fc9-832d-85d1a5507195/jepekumifofepibobag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4deadf0f-3335-444b-82b5-bad59e19fd74/where_is_the_battery_located_in_a_2012_jeep_grand_cherokee_laredo.pdfIn PDF document text
    • https://9c12218e-e157-4070-b33f-4467b3cb42bb.filesusr.com/ugd/0c60a0_aca8e18e8b66498b81072f3b13614d10.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/81d77785-5dbf-4158-b1f6-2284e95de4c0/garmin_etrex_venture_hc_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f64906b9-2f19-4b06-9c6b-df1ecabff990/rheem_tankless_water_heater_energy_guide.pdfIn PDF document text
    • https://db244590-af71-4c33-bd6e-2f8f55f31281.filesusr.com/ugd/fdab61_7df2154fed1745dfa1692c2a0d55ca28.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/de8b40c5-7fba-499c-82cf-969a942db61b/xazemivonukomejixopizetan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3d699e9-cac9-484a-9b47-d0951308235d/genie_model_7055_wont_open.pdfIn PDF document text
    • https://ffcd7f67-9b43-45c2-8e44-b15cca9583b8.filesusr.com/ugd/48bf55_f656c92caf904d0d804183ccb72dba5c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ed5a48f-50d7-4c2e-97e8-f6c07cdfbc77/tejuje.pdfIn PDF document text
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_f23b978f3ed84130a9b5838129b1caaa.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c524467-bcef-49d7-b892-9d9732acc942/45125663220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a649e1d5-0200-4a99-a1d8-848eadfe1e85/59137428733.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off00010518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10518 5512 bytes
SHA-256: d5be1f33fe5c5b8f8c59a41647d806236e50364e0121b174d6a09edc46642156
font_01_sfnt_off000117e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117E0 11376 bytes
SHA-256: 77f4fa46f6ae30e2374ccda7e75c7f807937e8da2f58434213508048b623b540
font_02_sfnt_off00013e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E8C 16756 bytes
SHA-256: eacce040cd7ddbe5bd638eb0b7e4c358aca07d696b0c16e8f14a8bff2cecbd8b

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