Malicious PDF — malware analysis report

Static analysis result for SHA-256 8346a2260112319a…

MALICIOUS

PDF

72.9 KB Created: 2021-03-25 07:27:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb4d13e3e95bff30d116dad1306e6ee3 SHA-1: 4a8ac749f1dfd8e9d885f3e4c7d69acf86cc94ce SHA-256: 8346a2260112319a4fe933264c51e61354cd477e640056660b8ce295fa235149
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to a URL disguised as a free download. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing campaign designed to trick users into downloading further malicious content.

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gimoguvi.ru/award?keyword=cyber+security+analyst+interview+questions+pdf PDF link annotation
    • https://cdn.sqhk.co/kubarevopew/ijsjid2/papanimizupimoruwoviro.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/how_to_use_a_watch_winder.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/fadugedafabuwuweroden.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/singh_is_king_picture.pdfIn PDF document text
    • https://cdn.sqhk.co/wevexifimur/ieigXVv/kamikamewubobutikojix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454045/normal_6023c0193d589.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/singer_simple_3223g_semi-automatic_sewing_machine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421959/normal_6048318474154.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/nugapitiwibejobibifubupi.pdfIn PDF document text
    • https://cdn.sqhk.co/kidimezamos/hijdhbN/61449031966.pdfIn PDF document text
    • https://cdn.sqhk.co/nusideja/ehgticr/bogewidozomawusifap.pdfIn PDF document text
    • http://gozatelaji.22web.org/thala_ajith_photos_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/personality_types_in_the_workplace.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/hjhUXeg/46895889735.pdfIn PDF document text
    • http://vawuzusodiguse.iblogger.org/favusotogekulejimesikotad.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/ejiighb/21432370472.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409102/normal_603579c64168f.pdfIn PDF document text
    • http://watutuwox.iblogger.org/nogusifapogobobave.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zibakogemigana.rf.gd/tibesaxavimiz.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 7

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_off0000e00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00A 5576 bytes
SHA-256: b466e3109166d36f6f157a54fb3c742f04c3b0b39c2f08de2cbee71814b8e85f
font_01_sfnt_off0000f324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF324 10412 bytes
SHA-256: cd68f360d418d0e7e9901f5de54ac174b1b7517cbf1f0eb7f07ea8838833e197

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