Malicious PDF — malware analysis report

Static analysis result for SHA-256 93af828fd0d0257d…

MALICIOUS

PDF

97.4 KB Created: 2021-03-11 12:42:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02c04d244e0f919b4cb40b0616ec9be0 SHA-1: 17d361e76920f9729f31fe009e7948abf586d36d SHA-256: 93af828fd0d0257d808a0b08d1a57825fcb0cc941a49aa86837d33ac6c05a159
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were directly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/wix?keyword=if+gross+investment+exceeds+depreciation+there+is PDF link annotation
    • http://servempieza.site/lenakelavotogiwid4wfxz.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/16758310123.pdfIn PDF document text
    • http://alternativeinfluencenetwork.net/rirubozumolepatelugexq5eee.pdfIn PDF document text
    • http://lassituda.online/1363510821929tpk.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/jemuf.pdfIn PDF document text
    • http://opensalle.xyz/tibetusakajumucpex7.pdfIn PDF document text
    • http://white-x.fun/menesobuwedubexugidj7dcn.pdfIn PDF document text
    • http://jijuduli.mywebcommunity.org/analysis_of_bank_financial_statements.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/QhhErij/2340727280.pdfIn PDF document text
    • http://pearhaidhr.fun/53833399320lqk8i.pdfIn PDF document text
    • http://astrology-personal.online/how_to_replace_ear_pads_on_jbl_headphones39o62.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/mukoz.pdfIn PDF document text
    • https://cdn.sqhk.co/sivunukiwe/bXieV2F/combat_assault_fpp_shooter_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/jjdiajj/reroromewesolev.pdfIn PDF document text
    • http://cashfree.store/fajivikedafategizuo1ib.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/mamuzeruti.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/5c420639-8f98-4c0f-9a5a-9928d51c1686/grohe_kitchen_faucet_quick_connector.pdfIn PDF document text
    • http://zivexotafoni.myartsonline.com/sodafapofewab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd01539f-541d-4a4b-84ea-a0729e59d9ed/fexopij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69fccd15-3142-4804-b105-e89e564094bd/how_to_do_a_frog_hop.pdfIn PDF document text
    • http://sitafefisoju.atwebpages.com/31870148539.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8185d204-1f34-4372-b76a-fc1f9beeebbb/gusutimetam.pdfIn PDF document text
    • http://zitasixan.atwebpages.com/62863108557.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_off00013f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F03 5604 bytes
SHA-256: eecd86551247c63db544705efc098e7a88f5ea0ab84a96ebfc2b567c9ad9407e
font_01_sfnt_off000151fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151FD 10984 bytes
SHA-256: 131ede8ef692f07cdb75e9c7b037dc45409dc28fbd7f395192c2370491fefaaf

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