Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fa0d4d703da81a…

MALICIOUS

PDF

80.1 KB Created: 2022-04-20 14:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 896f15507e64a9bcb1310a8157f0e944 SHA-1: d06c077e245c8a14e108ae937767e06286f17085 SHA-256: a4fa0d4d703da81a81cc44299a6fc4bde016e89ed2ba0ea2b4dfa4637cc80814
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://lazav.co.za/YmrXLWy8?keyword=kodak%203250%20printer%20driver%20windows%208 PDF link annotation
    • http://stjconsulting.it/userfiles/files/pakevolupewurupuvidemav.pdfIn PDF document text
    • https://vitasexabu.weebly.com/uploads/1/3/0/8/130813400/01c8615631ada3a.pdfIn PDF document text
    • http://livestocksaltlicks.com/ckeditor/kcfinder/upload/files/fibabanamasemoxixumuxa.pdfIn PDF document text
    • http://thaoduoconline.com/userfiles/image/file/92178537760.pdfIn PDF document text
    • https://rofasotukez.weebly.com/uploads/1/3/0/7/130740205/66833c56ddd5f72.pdfIn PDF document text
    • https://pezudegiroxa.weebly.com/uploads/1/3/4/6/134628049/pijafulewopesiz.pdfIn PDF document text
    • https://dakawomafi.weebly.com/uploads/1/3/5/9/135959339/xuxawusumakupu_fopevixalofapu.pdfIn PDF document text
    • http://lotyzapoznawcze.pl/cms/files/fizojitugadosegopam.pdfIn PDF document text
    • http://stellarp.com/userfiles/file/72065652900.pdfIn PDF document text
    • https://zezogilak.weebly.com/uploads/1/3/0/8/130874046/574268a.pdfIn PDF document text
    • https://qamous.net/kcfinder/upload/files/fepawexeriv.pdfIn PDF document text
    • https://xakexoxos.weebly.com/uploads/1/3/4/3/134307698/lowakizaduramepimif.pdfIn PDF document text
    • http://callbells.com.ua/kcfinder/upload/files/jolefatikakivipafe.pdfIn PDF document text
    • https://zudabipepapob.weebly.com/uploads/1/3/4/6/134672750/abb4f5.pdfIn PDF document text
    • https://wijivuxixi.weebly.com/uploads/1/4/1/3/141365294/5575275.pdfIn PDF document text
    • http://bibrka-school.org.ua/ckfinder/userfiles/files/9542560474.pdfIn PDF document text
    • https://duwupulo.weebly.com/uploads/1/3/4/7/134738239/7323419.pdfIn PDF document text
    • https://dumaxenuwumav.weebly.com/uploads/1/3/3/9/133997891/b1746.pdfIn PDF document text
    • https://zedodunojoponex.weebly.com/uploads/1/3/6/0/136083391/1558090.pdfIn PDF document text
    • https://ponopuxebi.weebly.com/uploads/1/3/4/3/134365602/460b41fc351c9.pdfIn PDF document text
    • https://fontini-rozetki.su/kcfinder/upload/files/bamapulexibizur.pdfIn PDF document text
    • https://zupakikaxabu.weebly.com/uploads/1/3/1/3/131380404/7742847.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000d283.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d283.bin)

Related samples 8

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_off0000d283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD283 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ea9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9A 11328 bytes
SHA-256: f912bf21be95456a39b4021abea1e5037f765600793a4c5f8962f1c648a1a2f9
font_02_sfnt_off00010584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10584 16812 bytes
SHA-256: a4ecd8097ec96e47b18724e3b4ac8a05c470503f0a3cd33ea853f6ef9e03244e

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