Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7f38aee4a3500d…

MALICIOUS

PDF

70.9 KB Created: 2021-03-16 14:10:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8b83769afd24a3482aa646368346fa8e SHA-1: 2cf33a8de465b460e5c8d48aeda6e3fcdb061022 SHA-256: 9d7f38aee4a3500d20ca05371772f526be2c595637194bb97aa8437293a4f945
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, with a primary one pointing to 'https://zajinet.ru/award?keyword=plant+systematics+gurcharan+singh+pdf', suggesting a phishing or malware distribution lure. The PDF's structure and embedded links indicate it functions as a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://zajinet.ru/award?keyword=plant+systematics+gurcharan+singh+pdf PDF link annotation
    • http://levantemosaic.com/nexamesd9of.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/vesexixopigosesimi.pdfIn PDF document text
    • http://shoplus.info/a_major_reason_for_us_involvement_in_latin_america_in_the_1980s_was_tobwuwt.pdfIn PDF document text
    • https://torobekaxiwe.weebly.com/uploads/1/3/1/3/131380482/jilaza_zevafariza_neninugeru.pdfIn PDF document text
    • http://excschool.ru/72481560485wuphx.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/gevorunosi.pdfIn PDF document text
    • http://dakijexok.22web.org/delinaxupupokodejikezobi.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/98079963338.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/31355745862.pdfIn PDF document text
    • https://xedasijaw.weebly.com/uploads/1/3/1/4/131453620/f7058be.pdfIn PDF document text
    • http://poguzozod.sportsontheweb.net/59180588719.pdfIn PDF document text
    • http://appeal-ig.com/what_is_meant_by_allahs_attribute_the_caliphatelxv2a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rilopuxam.rf.gd/how_to_do_oll_rubiks_cube.pdfIn PDF document text
    • http://wawopuviginase.epizy.com/chrome_32_bit_xp.pdfIn PDF document text
    • http://lewarojutuveg.rf.gd/dovavafusimejekapimimog.pdfIn PDF document text
    • http://jefepar.rf.gd/cambridge_dictionary_book.pdfIn PDF document text
    • http://bemogabidemixu.epizy.com/balzac_and_the_little_chinese_seamstress_movie_review.pdfIn PDF document text
    • http://sarozaxag.epizy.com/4375175941.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

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d69c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69C 5672 bytes
SHA-256: d820261941710586976e7c63623d793d98467dfd2b779451feb45b5cc8cbad06
font_01_sfnt_off0000e9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C7 10764 bytes
SHA-256: 3f450580064cd730fed4cb4541ee3cc1ff6b8ecd85cb08754452931b561c11c4

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