Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b30e0cb23428e4c…

MALICIOUS

PDF

91.9 KB Created: 2021-01-10 05:01:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ab19b1de4d6aafc747cab24004f08ba0 SHA-1: 3b57db6adec7ddd9048483cd734df8961e8f9435 SHA-256: 3b30e0cb23428e4c37f874be401fde1df24dd9018f632a418cb175e64752347e
196 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or malware distribution lure. It contains a large number of external links, many pointing to redirectors, suggesting an attempt to drive traffic to malicious sites. The presence of external URIs and a link farm heuristic indicates a focus on directing users away from the document. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://trafffi.ru/123?utm_term=el+paso+time+warner+tv+guide PDF link annotation
    • https://cdn.sqhk.co/bojojiweg/bicvVgj/2020_college_football_schedule_acc.pdfIn PDF document text
    • https://cdn.sqhk.co/rogumabutur/apdSOgg/aquarium_fish_depot.pdfIn PDF document text
    • https://site-1179952.mozfiles.com/files/1179952/56920140305.pdfIn PDF document text
    • https://cdn.sqhk.co/vosiwuli/hfheVC3/switzerland_flag_image.pdfIn PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/4b2ef9ff39.pdfIn PDF document text
    • https://cdn.sqhk.co/dakubakasilu/hb5idQ5/96429325737.pdfIn PDF document text
    • https://site-1172290.mozfiles.com/files/1172290/19632975628.pdfIn PDF document text
    • https://kexexetipo.weebly.com/uploads/1/3/4/8/134897314/gafizokavatug-fixewativisuve-zijepuxiv.pdfIn PDF document text
    • https://cdn.sqhk.co/sepovili/gcdyqgf/fitbit_versa_2_waterproof_bands.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/8ibj3hd/zombicide_black_plague_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/naxiwakiwuv/Rgjejeg/turkish_ringtones_download_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tuzamada/twister_game_spinner_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/grammarway_3_answers_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/charge_off_definition_credit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/rosa_parks_funeral_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/dimensional_analysis_factor_label_method_answers.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000127b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127B1 5388 bytes
SHA-256: 51c14dbe1991611b97d914c2463f83bbb8f69d12dcdb52ea72235a0c1d009de9
font_01_sfnt_off00013a07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A07 12176 bytes
SHA-256: c659b8f94b2c39ec77848220b980b4564de1c33d83181c9f9dc08a976d478fe0

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