Malicious PDF — malware analysis report

Static analysis result for SHA-256 616f107bb86b7da1…

MALICIOUS

PDF

76.8 KB Created: 2021-03-05 03:14:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a70e9f61d15d831ce6fb1f51ef3bc8e SHA-1: e7008e030287bff615bcd92a25ee15ca441eeb59 SHA-256: 616f107bb86b7da19a8ece86f020a62e4f3bec269edfa2cc2d91f64d1f757815
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kuzutuzo.ru/strik?utm_term=if+the+savior+stood+beside+me+piano+sheet+music
    • http://zesenadozefut.sportsontheweb.net/98457106967.pdf
    • http://geparup.scienceontheweb.net/political_science_and_international_relations_books_in_hindi.pdf
    • http://wugupomovupa.sportsontheweb.net/22647997209.pdf
    • https://fewebiporunivag.weebly.com/uploads/1/3/0/7/130775920/93fa531ea5c7994.pdf
    • https://cdn.sqhk.co/bikugipozamu/9qjebHK/zegixotaro.pdf
    • http://falorilipeb.mywebcommunity.org/the_black_cat_vocabulary.pdf
    • http://dalosizofovabes.medianewsonline.com/47863144533.pdf
    • https://lonirukigosoz.weebly.com/uploads/1/3/5/9/135965403/47058353.pdf
    • http://vivekawiga.sportsontheweb.net/somewhere_over_the_rainbow_original_recording.pdf
    • https://cdn.sqhk.co/mogizilo/IDieL7V/31549273498.pdf
    • http://zutolewe.mywebcommunity.org/john_deere_115_automatic_deck_parts_diagram.pdf
    • http://tufodudem.mypressonline.com/xukevexosuninoledof.pdf
    • http://pojapusevipuzu.mypressonline.com/1985_toyota_pickup_repair_manual.pdf
    • http://jovefupe.mywebcommunity.org/how_to_stop_a_kidde_carbon_monoxide_alarm_from_beeping.pdf
    • https://ganegekisawaji.weebly.com/uploads/1/3/1/4/131406809/jajal_simuvot.pdf
    • http://sujabupinoda.scienceontheweb.net/sony_cyber_shot_dsc_h300_lens_removal.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jozobudesurarab.onlinewebshop.net/niv_study_bible_leather.pdf
    • http://kojenixerog.myartsonline.com/razor_e200_scooter_reviews.pdf
    • http://rorazizaxaf.atwebpages.com/romance_of_the_three_kingdoms_13_switch_review.pdf
    • http://livirava.atwebpages.com/lozekuvowelobekideja.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed6b.bin
01b5d9b1f6f0e4624aa90f81751094a0b4582defaa2028649e8381d35e2a5154
pdf-font-stream PDF embedded font (sfnt) at offset 0xED6B 5500 bytes
font_01_sfnt_off0000fffb.bin
7d224613b26fb2edb441499a142aaead8f73eaf6a19ea0facfb61469dddb5a57
pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFB 11056 bytes