Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd97523659debba…

MALICIOUS

PDF

82.0 KB Created: 2021-06-01 04:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 35f989f679754ceee1bedf0ae30ef8ff SHA-1: c0c7d745b49be7c0fc402b7ba4da731a9c5dc909 SHA-256: 9bd97523659debbaa50b446cec5fe8b7cebcd87ba5e39f5f059b8fe7711d07c2
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 external links, many pointing to disposable hosting, and is flagged by ML and ClamAV as malicious. The document body text, though garbled, suggests a lure related to 'WhatsApp Gold' and includes a URL that likely leads to a phishing or malware distribution site. The presence of embedded URLs and the link farm heuristic indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://smidgel.ru/pbw?utm_term=how+can+i+update+my+whatsapp+gold PDF link annotation
    • https://lurabesuweki.weebly.com/uploads/1/3/4/5/134524451/punebubutinisa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407084/normal_5ff30a4dd845a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403681/normal_601636c0ceeb3.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/wakoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458124/normal_5fda7969bb9d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378604/normal_5feba23088e07.pdfIn PDF document text
    • https://sarodinejafa.weebly.com/uploads/1/3/4/7/134762654/f68a3e01b1a7ab.pdfIn PDF document text
    • https://wimegipovuxu.weebly.com/uploads/1/3/4/3/134373819/5683896.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4493282/normal_60b0a4485744e.pdfIn PDF document text
    • https://kurokeduzuw.weebly.com/uploads/1/3/4/6/134693898/4275671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457302/normal_5fd62c29da25e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388276/normal_5feceafcdc763.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453734/normal_5fdb1bd49e25f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a3ceff41-55db-44a1-afd7-660506d39898/76128294723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c2f8fa3-66bc-4f8e-8fc3-cc779573b60e/jlab_jbuds_air_true_wireless_bluetooth_earbuds_with_charging_case.pdfIn PDF document text
    • http://dipoziw.pbworks.com/w/file/fetch/144439581/bimitowebovaduxusotu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9901eed-2f2b-4726-baca-f3eba6f35671/miwixalis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e6534d6-e467-42cc-bcaf-edfdb1328bc3/james_allen_mccune_bella_thorne.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/595f0bb1-aec7-4ae8-b3a9-fadc8e2b1c77/ps_i_still_love_you_song_when_they_break_up.pdfIn PDF document text
    • http://gazumadu.pbworks.com/f/dulugabavobilesamum.pdfIn PDF document text
    • http://ziduzobif.pbworks.com/w/file/fetch/144438630/73451621528.pdfIn PDF document text
    • http://rimogeto.pbworks.com/w/file/fetch/144427530/clculo_mental_para_nios_cuarto_primaria.pdfIn PDF document text
    • http://foxobekizax.pbworks.com/f/are_raspberry_worms_harmful_to_humans.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB9 5428 bytes
SHA-256: cef74120723407dd1a10ebc6e8f3d87ff5ec2f7a208d228d00636f087b70f2c6
font_01_sfnt_off0000f119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF119 10848 bytes
SHA-256: 33c1962199377b1d9a493f1d72fd3c34d64a5946a8c80698cdf32da211e03dc4
font_02_sfnt_off000115d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115D6 16068 bytes
SHA-256: ddba3217f58172b9153fa2e17a6755d454371157efde6935f0723efb148e6ff1
font_03_sfnt_off00012a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A72 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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