Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60933caef039125…

MALICIOUS

PDF

72.9 KB Created: 2021-01-27 17:05:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 5c4cdf67f6ad2636232fea948387190c SHA-1: bd9c9cd37638648b9aa3512781e2f10a105aa459 SHA-256: f60933caef039125d5ca496a0ff52ee69324fcd478493b4f1c5a237b4db1ba7c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search engine result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, with the PDF_URI heuristic pointing to a suspicious domain. While no scripts were explicitly extracted, the nature of the PDF and the embedded URL suggest it's designed to lead the user to a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/123?utm_term=where+are+europes+highland+climates+found PDF link annotation
    • https://cdn.sqhk.co/kelanadu/hXX0jgh/tusozitazid.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/WjaRggh/lililejetekufos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474750/normal_5fda71a6bbcf9.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/iggibia/46242554931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_600a26320d794.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/teracopy_pro_activation_key4sxpc.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/hbhe1ly/big_easy_wings_restaurant_new_orleans.pdfIn PDF document text
    • http://hugertely.xyz/69167285526k4wi6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383806/normal_5fe1960a80ea9.pdfIn PDF document text
    • http://delaem-sami.online/56793630506ca6lp.pdfIn PDF document text
    • http://damvglaz0.xyz/small_electric_hammer_mill7icem.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/kudefem/27389780886.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/61905757240.pdfIn PDF document text
    • http://pupisovid.epizy.com/rujinijoxozogo.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/html_editor_for_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/lepuripitoluwajivipelewep.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/defend_your_nuts_2_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/67628864922.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/duvalay_mattress_topper_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/96856910434.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_off0000de91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE91 5580 bytes
SHA-256: 0cb8cfdad51187b99b7b5b071df5a72bc07f6afa15ec04122b952fa47bffd5f5
font_01_sfnt_off0000f174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF174 10728 bytes
SHA-256: b4b17aa954f43a8f7a5d626c924538cad3f4c30d6bf6f5a61a3865bad28bda88

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