Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc265859630aa5c…

MALICIOUS

PDF

79.0 KB Created: 2021-03-16 20:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 66178f5973182c5700959da22547bc20 SHA-1: 8199abda4b8999f1bc301c30941ed1afee3bcb33 SHA-256: 9cc265859630aa5cf6389b91910c61072960c9e943ebbba6de2abb4a9eb24cc8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'vilenefex.ru' suggests the document is designed to redirect users to a potentially harmful site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt, likely using social engineering to trick the user into clicking the link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/123?utm_term=attestato+di+conformit%25C3%25A0+urbanistica PDF link annotation
    • https://cdn.sqhk.co/karadirimose/hcjjhbV/12934022970.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/jgBjciW/netiratinam.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/FIjgS5s/57974574032.pdfIn PDF document text
    • https://cdn.sqhk.co/zolususux/dPykcia/gulelomuwosilagaboxarob.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/chicago_electric_reciprocating_saw_reviewdlgcc.pdfIn PDF document text
    • https://cdn.sqhk.co/kogewole/jhid6jj/hachiko_statue_in_tokyo_location.pdfIn PDF document text
    • https://cdn.sqhk.co/timadupak/haid1qj/thrifty_car_rental_airport.pdfIn PDF document text
    • https://cdn.sqhk.co/puwidebudojo/Jbtgehh/bowumafulelufozexesotupir.pdfIn PDF document text
    • https://cdn.sqhk.co/pelemobi/gjdidFL/866400641.pdfIn PDF document text
    • https://cdn.sqhk.co/guzikiku/idgjxhf/30658535497.pdfIn PDF document text
    • https://cdn.sqhk.co/bamebuxi/dMijjdT/electric_circuit_diagram_software.pdfIn PDF document text
    • https://cdn.sqhk.co/libibamudo/MOgigdx/xtreme_drift_2_apk_android_oyun_club.pdfIn PDF document text
    • http://meblik.su/aloha_breeze_tower_fan_remote_control_replacement14uk4.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/negonanopix/jamenodovejusakobo.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/21657527096.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/bella_single_serve_coffee_maker_with_water_tank_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2438ff8-cf45-4525-b1ba-efc8e7d3b94e/fazelelinow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddaab169-e265-49d3-8291-37c36f83f071/xotoj.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_off0000f75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75F 5496 bytes
SHA-256: ec9032ac9e1af20829a223802c341d7ac10a1e5895b4511f22ad3cffeb64ea1a
font_01_sfnt_off0001096d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096D 10440 bytes
SHA-256: ff7616523c8746bfe057432b9a3f0ae90c3a49ff3a1b17a3f6e4ba59c7411f54

Open this report in the interactive analyzer, or submit your own file for analysis.