Malicious PDF — malware analysis report

Static analysis result for SHA-256 97a7282a377bdea9…

MALICIOUS

PDF

62.1 KB Created: 2020-12-28 17:09:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fdf92cfb8790a3f83e6c5ce7c28620b3 SHA-1: 31b099af123e9d58a31b63b04fc329de248bb1c2 SHA-256: 97a7282a377bdea9cdc112956dd75f744e805d004fe848244d05f21c44a110c8
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. It contains a large number of external links, suggesting a link farm or phishing attempt. The embedded URLs likely lead to malicious content or further stages of an attack.

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafftec.ru/strik?utm_term=pixel+gunner+2 PDF link annotation
    • https://cdn.sqhk.co/birenejar/fmge8gc/monster_truck_dash_game.pdfIn PDF document text
    • https://cdn.sqhk.co/kilatelazobe/PmUVoid/light_up_keyboard_wireless.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/gIiijgh/pavebo.pdfIn PDF document text
    • https://cdn.sqhk.co/bagudivibi/NiejgG2/london_to_brighton_veteran_car_run_2019_photos.pdfIn PDF document text
    • https://fofumugu.weebly.com/uploads/1/3/4/4/134445246/8810006.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375528/normal_5fce512c81849.pdfIn PDF document text
    • https://cdn.sqhk.co/kobedobofepo/ApM9icj/airpods_pro_serial_number_check_fake.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f8753f8dc716.pdfIn PDF document text
    • https://cdn.sqhk.co/zopinulepa/jich2jc/sijasosikewojirebu.pdfIn PDF document text
    • https://cdn.sqhk.co/wopidaxiwuk/MenTjbY/lagasigerev.pdfIn PDF document text
    • https://cdn.sqhk.co/dizirajeb/icYhhGT/flight_tracker_application.pdfIn PDF document text
    • https://cdn.sqhk.co/nalomuxe/Xgijfgd/34312616662.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0598ef1d-0d40-4e5b-ac53-41165b8667af/24994971264.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5440642b-820d-450d-b6e1-4925c734d68a/4598838012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/456c3ecc-6e48-4dc2-9562-d2ba1196839d/77439372745.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/386c2a7e-9032-4424-aad2-d26faeeb6deb/60704893555.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_off0000b962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB962 4664 bytes
SHA-256: 0c5f311294df0de8b5193d709ac9c60dfdba7095353e7761b96c0935a3eeead0
font_01_sfnt_off0000c95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95D 10108 bytes
SHA-256: eaa8caf85baa26821c476c42b43a294c4e8e5551f354494b75f92a8210344778

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