Malicious PDF — malware analysis report

Static analysis result for SHA-256 129859231b032a7e…

MALICIOUS

PDF

82.0 KB Created: 2021-05-13 16:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e352fe971bac3bf2cfa3cd4b283abe0 SHA-1: 79fdcb79a804b284f921938169bb7b86c915aac1 SHA-256: 129859231b032a7ebee32f490dcf42f8a476be9ea7ce70e22138438279197ad2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/strik?utm_term=dyson+dc17+repair+video
    • http://idealslimitalia-oficial.site/662124143866urc.pdf
    • http://gedatidigog.sportsontheweb.net/what_percent_of_each_hogwarts_house_are_you_buzzfeed.pdf
    • http://dizofuses.mypressonline.com/12th_botany_practical_manual_english_medium.pdf
    • http://dezowem.medianewsonline.com/blue_sky_thinking.pdf
    • http://makelemeg.mygamesonline.org/capital_structure_financial_management.pdf
    • http://regsenatvumen.website/what_does_5d_mean_on_samsung_washing_machinejk0v4.pdf
    • http://punavuvipufov.sportsontheweb.net/baobab_cafe_and_grill_menu.pdf
    • http://nefupanono.mygamesonline.org/loan_affidavit_format.pdf
    • http://povugufo.22web.org/how_do_you_say_i_like_to_eat_pizza_in_spanish.pdf
    • http://insuranceautousa.com/how_to_use_walgreens_infrared_instant_ear_digital_thermometerdod26.pdf
    • http://50offit.pro/30594506209ht3sa.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • http://jenerotisa.mywebcommunity.org/ata_standards.pdf
    • https://static.s123-cdn-static.com/uploads/4414860/normal_60089b4d11dfc.pdf
    • http://wejowadizabudex.mypressonline.com/rubulofimifefuk.pdf
    • https://static.s123-cdn-static.com/uploads/4370053/normal_5fc6b6c34bf29.pdf
    • https://cdn-cms.f-static.net/uploads/4383918/normal_5fd31787d2c7f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6a934105-f16e-49e8-bc5c-05d202c4866a/garmin_epix_manuale_italiano.pdf
    • https://uploads.strikinglycdn.com/files/418bbedf-651b-4102-bce5-f28608218704/ge_spacemaker_xl_1400.pdf
    • http://tufubumokagefe.rf.gd/soundcloud_song_er_with_album_art.pdf
    • https://uploads.strikinglycdn.com/files/28d2f65b-eb19-465c-82cf-50fd5421b1d2/12974498056.pdf
    • https://uploads.strikinglycdn.com/files/500d0e9b-c2ef-4814-b778-e151bb207a50/vakebube.pdf
    • http://vewetumizobu.rf.gd/tepakabebu.pdf
    • http://kifesafijupesob.onlinewebshop.net/grace_alone_piano_sheet_music.pdf
    • http://rufuvavigesu.epizy.com/concluding_a_literature_review_example.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_off0000e1a8.bin
88c32d7106a381c39902319245d67085e53531e48895107c63663852f1555ef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A8 5328 bytes
font_01_sfnt_off0000f3f6.bin
81b5689c6f1fde2b8a52591ff8970961f35c93baf9dc414e8e1160a1554a1bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F6 20148 bytes
font_02_sfnt_off000123c4.bin
5d72d630640305d452d914085fd6c65e0d8125198bed8028c282d44fd0327be8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123C4 16068 bytes

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