Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf0a5a1ae1af37f…

MALICIOUS

PDF

86.0 KB Created: 2021-04-28 22:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 937a0fbbffa12831500831aff10a07c7 SHA-1: d2f199595ccc14cc6819485b2e35816ec63b5dfc SHA-256: edf0a5a1ae1af37f37cf5d8fd409735b40971b512b746d6b7848ecd8c103ad18
136 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a redirector link suggests a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards an attempt to exploit users through deceptive 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
  • 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://botokaw.ru/strik?utm_term=can+the+police+arrest+you+without+evidence+uk PDF link annotation
    • https://cdn.sqhk.co/jusitufugaf/b7ujjZM/58447889808.pdfIn PDF document text
    • http://reduslimer.website/frozen_potstickers_in_air_fryer83jwg.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/shimla_mirchi_full_hd_movie.pdfIn PDF document text
    • https://wanesutilujat.weebly.com/uploads/1/3/4/8/134868149/nizimekatawagapet.pdfIn PDF document text
    • https://tavefagizukog.weebly.com/uploads/1/3/0/7/130775361/womuxoliwoz_wurajolub_wimixewe_pagibomejimipu.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/15797633293jspcs.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/98556528925.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490272/normal_5fd60e8273b17.pdfIn PDF document text
    • https://gapudozesaneg.weebly.com/uploads/1/3/4/5/134525911/sonowim.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/82618078616.pdfIn PDF document text
    • https://cdn.sqhk.co/toxotunem/gtihjDM/kepagadip.pdfIn PDF document text
    • https://cdn.sqhk.co/papovezegep/hQKsoja/free_bible_verse_wallpaper_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/senegal_bichir_care_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/iDieR1R/the_check_cashing_store_boynton_beach_fl.pdfIn PDF document text
    • http://servisvds.ru/alfred_piano_technique_booksduo9n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450354/normal_6040d86d0f2b6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://durunorutap.epizy.com/online_voot_video_er_for_pc.pdfIn PDF document text
    • http://wobemiko.epizy.com/black_mirror_arkangel_parents_guide.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_off000115c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115C7 5384 bytes
SHA-256: 06a6dcba2736cae339b0823e75463afec1e589bca9908583afb3b766f0dcd995
font_01_sfnt_off00012824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12824 9960 bytes
SHA-256: 11dc6df582b53b0bb98f029ba80a49c7489bf30a02a213f6893c10ed46a559e4