Malicious PDF — malware analysis report

Static analysis result for SHA-256 84dab441e711b2b6…

MALICIOUS

PDF

63.7 KB Created: 2020-12-17 17:51:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8d91609e84ead462fcedfd32844000f2 SHA-1: 4d0a93d124b5004a28aec39030a983e8a721d3c1 SHA-256: 84dab441e711b2b689f7a5757188b7a7deb919fe64e95a86d7dc0bac1a46488f
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains embedded links that redirect to a known malicious domain, traffmen.ru. Heuristics indicate this is a phishing lure, likely disguised as an 'Intex 22 x 52 pool owners manual' based on the URL parameters. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://traffmen.ru/strik?utm_term=intex+22+x+52+pool+owners+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5fa1ce364a701.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487416/normal_5fcebc9301d25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376105/normal_5f8d4b97d1e56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406793/normal_5f9ec09ea3b1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426271/normal_5f983fd30402c.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/jufowokedunod/armored_armadillo_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/16419199295.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc79625cb936d6a06aa469d/t/5fc7fd48ca9dc73fb01a7357/1606942025374/awesome_words_that_start_with_the_letter_s.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/compound_sentence_worksheet_year_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/137c1b4c-cb0a-4a42-b328-c2735e118459/jakejojufufuzamimiduguzu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc65777e9fc3622d5470b25/t/5fd1f34ab0f0f842d7aa1205/1607594827814/planet_craft_block_craft_games_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7c6b93c-72af-41de-8cfe-d521a57feb06/sumolegerelopomad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9aaf9f21-8641-45bb-a37f-e8b41dbd23f6/tovoregusozepusoxono.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/grey_cup_2016_live_stream_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/dividing_radicals_worksheet_geometry.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a99e8ef7301f8b317e6a/t/5fc817e7bbb7f45a927c8ddb/1606948842566/find_my_friends_freeze_location.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_off0000bb75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB75 5320 bytes
SHA-256: 7f8834daff7bb301e34490c7ff108112e3356969572fbd97435bdeca0741f053
font_01_sfnt_off0000cd8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD8D 10676 bytes
SHA-256: 4761649e88efde1c0c428a59517db83aa16d426224d5650d612e0b5a5f4e7cf5

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