Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5a7239ac754ecb…

MALICIOUS

PDF

79.0 KB Created: 2021-03-16 15:42:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65338138b3248fc35aad162997713309 SHA-1: 1361954a54817bb1fa09aa186f80ba1f7e19b55a SHA-256: 0d5a7239ac754ecbde3bc784955a6531468e2f35feae10ef4ff9d3faa57b2e2c
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a primary focus on 'https://zajinet.ru/strik?utm_term=list+terry+pratchett+books', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic of using disposable hosting for a large number of links, further supporting malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://zajinet.ru/strik?utm_term=list+terry+pratchett+books
    • https://mexasazage.weebly.com/uploads/1/3/4/5/134513067/f4d0b34db70.pdf
    • https://rojisubul.weebly.com/uploads/1/3/4/5/134593633/bobasonug.pdf
    • https://kivifakan.weebly.com/uploads/1/3/4/8/134870172/6959040.pdf
    • https://turabevov.weebly.com/uploads/1/3/0/9/130968962/vovekefumi.pdf
    • https://cdn.sqhk.co/dasoxitif/yO7CjaV/luxor_las_vegas_pyramid_deluxe_king_room.pdf
    • https://cdn.sqhk.co/jaselavujuwi/O9wjezF/lasipefogexuwazik.pdf
    • http://lodomujimujug.mywebcommunity.org/juzimolulifud.pdf
    • https://guwevene.weebly.com/uploads/1/3/1/4/131437413/5777507.pdf
    • https://jitipukojid.weebly.com/uploads/1/3/4/7/134707402/d87938ab47.pdf
    • https://cdn.sqhk.co/kusedesomawa/gfgjbFW/55052104879.pdf
    • https://kosodakugup.weebly.com/uploads/1/3/4/6/134655388/rorom.pdf
    • https://cdn.sqhk.co/fadejiweruw/PheKdha/download_solar_smash_mod_apk_android_1.pdf
    • http://gukiduwonaxinef.getenjoyment.net/risk_manager_interview_questions_and_answers.pdf
    • https://cdn.sqhk.co/setawigiz/45UjhPP/jeguvipuvesonemotovoz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b11f43cd-62a5-4f39-9ded-a9c6227fc27d/ramajubidozuxoga.pdf
    • http://xologikaju.atwebpages.com/what_are_examples_of_social_phobias.pdf
    • https://uploads.strikinglycdn.com/files/d4625e3a-121e-4d51-93af-97b311981572/garijugomoguruso.pdf
    • https://uploads.strikinglycdn.com/files/e3891c80-bff1-41d4-ab32-05d3d2d2ef5a/tippmann_a5_e_grip_board.pdf
    • https://uploads.strikinglycdn.com/files/f7f687c5-efb3-47b2-b7bb-ded8e5e15520/polaroid_is048_camera_reviews.pdf
    • https://uploads.strikinglycdn.com/files/ca28fddd-a288-439b-bcf9-16f89e1efc10/sketching_basics_for_beginners.pdf
    • http://petojijoxura.onlinewebshop.net/fobuxasisidesemi.pdf
    • https://uploads.strikinglycdn.com/files/1dc21633-e5e2-4815-82eb-57dfa6318bc6/what_is_the_most_popular_frappuccino_at_starbucks.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_off0000f7e0.bin
7529c0f85b8a361e78cb3d130a5dbf12a5a7a479c6c8bcd0aece54a4bef2a05f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E0 5236 bytes
font_01_sfnt_off000109ad.bin
0eff8652f1203a24d304e44f8d580f68ea6f0cd40611aba5995030b009b99480		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109AD 10892 bytes

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