Malicious PDF — malware analysis report

Static analysis result for SHA-256 195840621e8cd65d…

MALICIOUS

PDF

68.0 KB Created: 2021-03-18 16:38:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1d61872d628b2aeeb981a95bee75ffd SHA-1: 752fa0558da877134ad00d38373b5d378d8186cc SHA-256: 195840621e8cd65df8e44f9452343c00ee8fc93086083a81d152f40cc732af1d
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs and is identified as a link farm on disposable hosting, suggesting it's designed to redirect users to potentially harmful websites. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's part of a phishing or malware distribution campaign, likely leveraging embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/wix?keyword=honda+pilot+repair+manual+pdf PDF link annotation
    • http://texewofe.22web.org/how_do_complex_sentences_engage_the_reader.pdfIn PDF document text
    • http://show-visitor.xyz/netgear_router_wps_button_not_workingwgxs6.pdfIn PDF document text
    • http://naturaleone.space/786646730086zf04.pdfIn PDF document text
    • http://copyrightproblem.com/la_casa_delos_espiritus_resumen92xmq.pdfIn PDF document text
    • http://otomail.business/24569803966krrqm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372378/normal_603a53139b46c.pdfIn PDF document text
    • http://peroruse.iblogger.org/example_formal_letter_writing_pt3.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/alice_munro_dear_life.pdfIn PDF document text
    • http://jafilakawusuf.iblogger.org/wajaxuxogiritiridimejatu.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/lagu_bts_album_pertama.pdfIn PDF document text
    • http://yellownatural.space/110678382853ykp2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406775/normal_5fd7a48134faa.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/8410303871.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/63692503821.pdfIn PDF document text
    • http://xogumilagu.iblogger.org/12869129537.pdfIn PDF document text
    • http://badgesverified.com/mizisigividilonx15o.pdfIn PDF document text
    • http://rifikelatukuw.iblogger.org/xoxibudajof.pdfIn PDF document text
    • http://3gusevshop.space/30010593990jsdmq.pdfIn PDF document text
    • http://mebel-albero.ru/how_to_use_raid_max_ant_trapsvhkm8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://funuduki.rf.gd/what_does_fortnite_run_on_answer_key.pdfIn PDF document text
    • http://kokiralasido.epizy.com/xojifanifowilubama.pdfIn PDF document text
    • http://xoviketi.epizy.com/13024206585.pdfIn PDF document text
    • http://tobavukopipe.epizy.com/traditional_bowyer_s_bible_volume_4.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 8

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_off0000ce74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE74 4968 bytes
SHA-256: 69a060e2cbb6883eebc63a1c52d4f2c66da6d7f21a26d549d1a1013989653ce6
font_01_sfnt_off0000df41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF41 10444 bytes
SHA-256: a09e74760507931629ed794995824db943cd7cc56d2acd7e9ab91e7c22c087ab

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