Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d320c7e7f40e15…

MALICIOUS

PDF

80.2 KB Created: 2021-03-16 08:20:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3ee1a029c813832cd759435c8cd4e30e SHA-1: f7f0b781b73596bc2058a61c3faac52a0a3bdd4d SHA-256: e0d320c7e7f40e159fd074a83883248d7b203894e7c1246c26105825159f1c0f
136 Risk Score

Malware Insights

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

The PDF contains a link to an algorithmically generated URL, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, appears to contain text related to car maintenance, likely serving as a lure. The presence of a high-risk heuristic for PDF random URL links and ClamAV detection strongly suggests malicious intent, likely to redirect the user to a malicious site or download a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://gimoguvi.ru/strik?utm_term=how+to+reset+maintenance+required+light+on+03+honda+accord PDF link annotation
    • http://physcoo.com/vejugopaniwomulezeferofos1w9gm.pdfIn PDF document text
    • http://english-10.site/vofuvue7k3t.pdfIn PDF document text
    • http://gratoramm.website/zaxatudapizibejoxadopofuzfrlqo.pdfIn PDF document text
    • http://mebovaduzi.mywebcommunity.org/wordpress_user_enumeration_fix.pdfIn PDF document text
    • http://pasikufopubiwo.mypressonline.com/38332615841.pdfIn PDF document text
    • http://nenegifivujaxu.mypressonline.com/96788611952.pdfIn PDF document text
    • http://faxixovojaja.sportsontheweb.net/anti_vegf_agents_in_ophthalmology.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/fazujo/48187720975.pdfIn PDF document text
    • http://lupixopuvir.onlinewebshop.net/dictionnaire_franais.pdfIn PDF document text
    • http://nononulavojiki.myartsonline.com/45168467047.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/pf_withdrawal_form_2019.pdfIn PDF document text
    • http://letutemoxeluz.onlinewebshop.net/what_order_do_outlander_books_go_in.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/sigowuxojudeguninibazogaj.pdfIn PDF document text
    • http://roporuti.onlinewebshop.net/95462682949.pdfIn PDF document text
    • http://gevapugono.atwebpages.com/how_to_read_love_line_on_palm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07987555-c8ca-4fcf-a23e-23ca2baf590e/visual_basic_sample_programs_with_codes_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/troy_bilt_weed_eater_pull_start_problems.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13c1372a-ea5a-4282-8f61-f7623aa5bf4c/socratic_questioning_techniques.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed1c3d4-7f0c-4da1-8dd9-97fccda4a578/zonelejoxenewafunoxef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e69e571-887b-4b4f-88c5-4b8c95f2e8fe/what_is_creative_thinking_in_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4ddd152-9b7e-4a7d-93ed-ab5cb1093728/what_are_the_44_sounds.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/68932844813.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/auto_tune_android_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/futufo.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_off0000f78e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF78E 5836 bytes
SHA-256: 44f0c900bb4a899c1351c245801414caea6c14a192de71205a94e10768aedadf
font_01_sfnt_off00010b43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B43 11640 bytes
SHA-256: 4275dd4eae64f2c7de501b993e552fb75fc825439ea26ede6868fee9aa71afcd

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