Malicious PDF — malware analysis report

Static analysis result for SHA-256 769f8498f8e66c51…

MALICIOUS

PDF

76.5 KB Created: 2021-03-18 01:58:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 542b994ced7893eba55c3a927f8f7812 SHA-1: b24f04a028052640d93befdd7a152feeb6271b4e SHA-256: 769f8498f8e66c5137f73d95148eb75d88f617869b5e6736d41eb63799b8b503
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning model with high confidence. It contains numerous external URIs, including one pointing to `https://lozipotod.ru/strik?utm_term=flowers+in+the+attic+movie+2`, which is likely a phishing lure. The document's structure and embedded links suggest it is part of a link farm designed to redirect users to malicious 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://lozipotod.ru/strik?utm_term=flowers+in+the+attic+movie+2 PDF link annotation
    • http://birapemotafew.mygamesonline.org/life_science_grade_12_genetics_and_inheritance.pdfIn PDF document text
    • http://forsage.pw/149834516470kafp.pdfIn PDF document text
    • http://adv-workshop.site/dietary_guidelines_for_diabetes_management5wsa6.pdfIn PDF document text
    • http://luxasireku.sportsontheweb.net/jesapaniveva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447276/normal_5fd6665c744d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449183/normal_5fe8c1f64b72d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446645/normal_603724f912f6e.pdfIn PDF document text
    • http://help-bluebadgecenter.com/how_long_to_steam_broccoli_in_electric_steamer1dzt4.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/planet_fitness_pf_black_card_worth_it.pdfIn PDF document text
    • http://fitit.space/fugobiketarurika0b5vq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369632/normal_6015e3c0117b9.pdfIn PDF document text
    • http://podeves.xyz/14711096123fzfqb.pdfIn PDF document text
    • http://prizinsta.info/how_do_i_fix_my_frigidaire_gallery_ice_makernlhgy.pdfIn PDF document text
    • http://pivolirarorip.mypressonline.com/jimiwozef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://niwimugosaz.onlinewebshop.net/90786131582.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 8

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_off0000ee9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE9A 5280 bytes
SHA-256: 0bb3e74950efb0db4e00e5ba0189944ba6b00b20183d1db712733fa81a9a6a40
font_01_sfnt_off0001007b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007B 10780 bytes
SHA-256: 173ae770c07089a900b2e0a03e8f855e0a96d65f7799777ba956134c7583737c

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