Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da59894ec093439…

MALICIOUS

PDF

109.0 KB Created: 2021-03-14 09:04:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be075911638d11b7a42f3289afed4865 SHA-1: d3884b64eed32533f0a946d8feaf83f849b16348 SHA-256: 7da59894ec093439eb873037dbf0f506768ccc75ad63355af7fcfca4b99ba461
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically the one pointing to 'midufefew.ru', suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a spearphishing attachment designed to redirect users to malicious content.

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://midufefew.ru/wix?keyword=the+lego+mindstorms+ev3+discovery+book+%2528full+color%2529+pdf
    • https://cdn.sqhk.co/zaweniwefi/iiIhhpg/red_cross_war_crimes_game_of_thrones.pdf
    • http://fipizilemuwob.medianewsonline.com/nubexurif.pdf
    • http://boledidezole.22web.org/coliformes_termotolerantes.pdf
    • https://gofupadosu.weebly.com/uploads/1/3/4/8/134853885/roxafikelojarofaw.pdf
    • http://idealica-tufficiale.website/free_spine_templates_for_bindersp3sf0.pdf
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/722934.pdf
    • https://cdn.sqhk.co/jiwosowo/b4j8kwc/28120671870.pdf
    • http://cmbmarketing.agency/tom_clancys_rainbow_six_siege_vulkannyz3e.pdf
    • http://vowufijetapiko.sportsontheweb.net/a_method_for_prayer_freedom_in_the_face_of_god.pdf
    • https://cdn.sqhk.co/genopeno/ifhgigS/lafivewaruxup.pdf
    • https://cdn.sqhk.co/moserusoba/agfNidh/gamehost_investor_relations.pdf
    • http://vodoroding.info/how_to_take_apart_a_shower_faucetxyed4.pdf
    • http://rowaxamapitowej.getenjoyment.net/69803282163.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tuxefunuzire.atwebpages.com/niremisitedexalipanejixej.pdf
    • https://uploads.strikinglycdn.com/files/8990a60a-a007-4e54-b31c-ed578cde1a8a/70262816224.pdf
    • https://uploads.strikinglycdn.com/files/111e25e0-3115-404c-8bc2-d7c58043578f/57319392289.pdf
    • http://kuzemepusiloj.onlinewebshop.net/49835036953.pdf
    • http://riwugenesujo.epizy.com/25539358233.pdf
    • http://dewelimu.epizy.com/80282071354.pdf
    • https://uploads.strikinglycdn.com/files/4115e0e1-a8c9-49c0-96e6-98ab6ad8b70f/keurig_k45_elite.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014dc8.bin
7a3029358c25b03a65ce75f5c73f59416e5a762bd9f21bac63522279787ef025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DC8 5992 bytes
font_01_sfnt_off00016227.bin
e17ff1fb8e0fa1138e0ddb906c63c996b22756bce37bfdcf6eb4ad8399a8917e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16227 14192 bytes
font_02_sfnt_off00018f24.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18F24 16204 bytes

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