Malicious PDF — malware analysis report

Static analysis result for SHA-256 011d4c3560dfc16e…

MALICIOUS

PDF

77.5 KB Created: 2021-01-14 23:27:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-28
MD5: cb6e013b873f0db98c262afb7f123db5 SHA-1: 21007fc67e42d28eb56a5bce9dc202da9e3caf67 SHA-256: 011d4c3560dfc16e75313a5c41b6509165aa2814dcd5c4e63428075751591627
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://trafffi.ru/123?utm_term=the+lion+man+and+the+geek+girl+manga+chapter+1 In PDF document text
    • https://s3.amazonaws.com/pibabopuduj/atharva_veda_in_malayalam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474450/normal_5fb96e923bdab.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/72525036000.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/actionscript_macromedia_flash_8.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/70256526970.pdfIn PDF document text
    • https://purowuma.weebly.com/uploads/1/3/4/4/134472698/d9de6b33d8e20.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/1tlJAj2/98580466752.pdfIn PDF document text
    • https://xufiporugagom.weebly.com/uploads/1/3/4/7/134705457/4d1c3f0c254edd.pdfIn PDF document text
    • https://wedebiki.weebly.com/uploads/1/3/0/9/130969436/besejisuwetilow.pdfIn PDF document text
    • https://widonudafedezu.weebly.com/uploads/1/3/0/7/130776490/5386733.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/tioga_high_school_tioga_la.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/23522920447.pdfIn PDF document text
    • https://tunomofezu.weebly.com/uploads/1/3/2/3/132303147/901e3e6a23a3ffe.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/hssPhjK/38655858062.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000dabf.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000dabf.bin)
    • 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 extracted file (font_01_sfnt_off0000dabf.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_03_sfnt_off00011389.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off00011389.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF54 3220 bytes
SHA-256: 2e882f60c9e34f8218fb6fe773ecabc5b38523a2a69a9cede3307a888971e1a4
font_01_sfnt_off0000dabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABF 5372 bytes
SHA-256: 7e0f1fc34436875ae65c11337e64eef443b0463f5e5cd16b58449e5fba4f8e6b
font_02_sfnt_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 11656 bytes
SHA-256: ea113de8b2dead655dfdd18b24bb609e9f458a58c5214efd3e0943c029d6c454
font_03_sfnt_off00011389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11389 16076 bytes
SHA-256: df8916dc0488248139c8b7f8575cdad52201066875df9eb3f38f8be7ce625b0f