Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a4ae215b718303d…

MALICIOUS

PDF

70.3 KB Created: 2021-03-10 23:23:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7a4e48a6f6587db768d3ee2b286f9ca3 SHA-1: 51c1fcff7bd255344522ca68fbe7a9da09cf65bb SHA-256: 1a4ae215b718303dbe1b5a9bd84b16bbadcdaf8d9f7256383d6d6f148587e8d8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://lozipotod.ru/wix?keyword=does+not+constitute+legal+advice PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403539/normal_5fc8760a91344.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393026/normal_6044de3df0730.pdfIn PDF document text
    • https://cdn.sqhk.co/kubasovusi/hjQn6s8/vinimumigemasozeg.pdfIn PDF document text
    • https://cdn.sqhk.co/gobumavurob/Vidijid/tikujavakixi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403140/normal_5fdc2454f31f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424935/normal_5ffdf4beec8e0.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/sinamozagemoger/is_there_a_fight_club_2_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18824cba-f6c7-4a99-9188-6c2224887de0/real_scottish_journeys_reviews.pdfIn PDF document text
    • http://pasifowon.atwebpages.com/2114191523.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/57819270712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/413b61f4-39d1-4f38-abab-cfb5729b5298/robert_sepehr_species_with_amnesia.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/after_we_collided_movie_on_netflix_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/99599577287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a55545e-c1df-4000-b414-ae479d2457a3/bewevub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/696bb83d-1955-4777-ad56-351542edf316/interior_design_colleges_in_pune.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_off0000d817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD817 5068 bytes
SHA-256: 8441c0bf6fbe3afa8bbb6cb118beba662a61166942106fc9480721392f97e425
font_01_sfnt_off0000e97c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97C 10240 bytes
SHA-256: 3c9a3da6ea7eb9e50823da39356ef84c3246b477f47d1c60fd1c69667028936e