Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f9493cd6d17584…

MALICIOUS

PDF

241.4 KB Created: 2022-03-26 03:55:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: f3651c468bb5182b66c1cc1a4f21af15 SHA-1: b5d50af23e5cf2da3de6259e8451eb3d951b173d SHA-256: a4f9493cd6d175843020dd3aa19e8f5b99677ff3c0989901494faecf23834544
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://lazav.co.za/YmrXLWy8?keyword=nelson%20mandela%20books%20he%20read PDF link annotation
    • https://liwujozixo.weebly.com/uploads/1/3/4/4/134497145/3803679.pdfIn PDF document text
    • https://nebogodawuguv.weebly.com/uploads/1/3/1/3/131398457/pujuloveda_mexidub_rijod_gesovakikige.pdfIn PDF document text
    • https://jerofewu.weebly.com/uploads/1/3/4/3/134369167/xisipawixaxukexi.pdfIn PDF document text
    • https://senuwisaf.weebly.com/uploads/1/3/4/0/134018119/sakaregakukatabenami.pdfIn PDF document text
    • https://rilodogalaru.weebly.com/uploads/1/3/4/3/134398508/e8c67bb.pdfIn PDF document text
    • https://bowukobi.weebly.com/uploads/1/3/4/7/134706413/fb8d70b34f7a3c.pdfIn PDF document text
    • https://xirozakopep.weebly.com/uploads/1/3/4/7/134719339/pemugag.pdfIn PDF document text
    • https://ziridizozavixik.weebly.com/uploads/1/3/4/4/134400570/bulifuz.pdfIn PDF document text
    • https://lakukuvirukum.weebly.com/uploads/1/3/0/8/130874631/semezipazevo.pdfIn PDF document text
    • https://savibivo.weebly.com/uploads/1/3/1/3/131381036/2823441.pdfIn PDF document text
    • https://bigubiforuse.weebly.com/uploads/1/3/5/3/135389938/fekejokiden.pdfIn PDF document text
    • https://puxibaso.weebly.com/uploads/1/3/0/9/130968956/wenenom_nivapazofe.pdfIn PDF document text
    • https://zamomojufowa.weebly.com/uploads/1/3/4/6/134613680/3912537.pdfIn PDF document text
    • https://bimenejujuw.weebly.com/uploads/1/3/4/5/134592033/7532072.pdfIn PDF document text
    • https://wifirinopemuv.weebly.com/uploads/1/3/4/7/134762260/8bd4d8a3b0.pdfIn PDF document text
    • https://mutevoleronuxo.weebly.com/uploads/1/3/5/3/135351112/xobolugidonafonew.pdfIn PDF document text
    • https://senemoribut.weebly.com/uploads/1/3/4/7/134703027/a8586.pdfIn PDF document text
    • https://mulokigapasol.weebly.com/uploads/1/3/1/0/131070847/buwef.pdfIn PDF document text
    • https://lipijunozawisek.weebly.com/uploads/1/3/4/7/134721324/popepujabiduxakome.pdfIn PDF document text
    • https://toripifisesu.weebly.com/uploads/1/3/4/3/134367164/zamamidaratunu_josafelopufalev_lepipejawi.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_off00034fb0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00034fb0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FB0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00036654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36654 10532 bytes
SHA-256: 1a12e02b39c16951330564e8774da7f30c7698220c0364c3fab950c77f1d9802
font_02_sfnt_off00037e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37E0E 21996 bytes
SHA-256: e0bc727a598eedec61fa76c6d73bcab186d7b3674dd8a0bbecb0517d82c013f1