Malicious PDF — malware analysis report

Static analysis result for SHA-256 057eaa3fb3c60e54…

MALICIOUS

PDF

69.5 KB Created: 2021-03-05 11:13:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 9db509e3ad46732236f628d63a16d390 SHA-1: 183950cc5bbb41a0be126fe3585488ab0dfb4a5b SHA-256: 057eaa3fb3c60e549ef1673043f59f7e952f5790ce8af72668bf36e679db9ad8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit users by directing them to potentially harmful content.

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
  • 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://golowaki.ru/award?keyword=summer+infant+banister+%2526+stair+gate+with+dual+installation+kit+br+-+r+exclusive PDF link annotation
    • http://mofolaz.22web.org/baixar_android_file_transfer_apk.pdfIn PDF document text
    • http://antinomi.design/28902159531e2a52.pdfIn PDF document text
    • http://dezurifu.iblogger.org/college_calculus_textbook_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423137/normal_603ec7c5efc0b.pdfIn PDF document text
    • https://cdn.sqhk.co/podidiwi/gcidDij/kung_fu_panda_quotes.pdfIn PDF document text
    • http://zizubur.22web.org/bupexutumenuvarikuziw.pdfIn PDF document text
    • http://pesale.pro/31030038190oynzb.pdfIn PDF document text
    • https://cdn.sqhk.co/soboxuxafiso/ccFIhdn/diy_acrylic_nails_at_home_kit.pdfIn PDF document text
    • http://lotsmen.com/22717402930hqnlv.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/uhietFx/horizon_zero_dawn_forbidden_west_trailer.pdfIn PDF document text
    • http://miwopejodap.iblogger.org/akasamlo_oka_tara_song_dj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_6023d4b5be67f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lokuvutifinulef.rf.gd/laura_gasparis_ccrn_review.pdfIn PDF document text
    • http://komomikadexep.rf.gd/gonareremubaran.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3d20c96-98a1-441c-a5f7-c034bc75e90f/what_coffee_did_juan_valdez_represent.pdfIn PDF document text
    • http://jugofave.rf.gd/die_die_why_wont_you_die.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25fcb53f-94f8-421b-a957-69a48b004b05/rarolanivavidojuwo.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_off0000d2c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C5 5124 bytes
SHA-256: beee741c749eec49cdf5cdfb9e1a5db6b1d1302a5bf080c95353dff9c5cd36df
font_01_sfnt_off0000e415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE415 10292 bytes
SHA-256: 518852b11ceed5711f6d8862c444ab50732737f0c05328dca227a1b3cfa889c1

Open this report in the interactive analyzer, or submit your own file for analysis.