Malicious PDF — malware analysis report

Static analysis result for SHA-256 cab6aef37eac1411…

MALICIOUS

PDF

75.7 KB Created: 2021-03-24 04:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 686dee6983a672f26e8ff56290f22d22 SHA-1: db8c613cc33f8dccf320d898d5071ae16092190d SHA-256: cab6aef37eac1411468576f9eacf4887315d2b1975fd3b12b0b280768e1da558
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL, 'https://kuzutuzo.ru/wix?keyword=minns+water+sports+prices', which is likely used to lure the user into a phishing or malware download site. The document body, though heavily obfuscated, appears to be a lure related to 'Minns water sports prices'. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/wix?keyword=minns+water+sports+prices
    • http://dubupatixekun.iblogger.org/zewukasabeju.pdf
    • http://sopesukenapad.scienceontheweb.net/attestation_de_prise_en_charge_visa.pdf
    • http://zvezdasevera.online/unit_chemical_bonding_covalent_bonding_worksheet_3desd6.pdf
    • http://raisinslabs.club/nutone_radio_intercom_system_ima3303_manualbguci.pdf
    • http://operationhomeplate.com/moxiberf1msd.pdf
    • http://tigesonepovar.66ghz.com/47334403992.pdf
    • http://popotuwilavab.iblogger.org/glorious_band_all_mp3_songs.pdf
    • http://memisada.mygamesonline.org/gonefinibiworawemefewar.pdf
    • http://flowerport.store/amazon_linux_2xtis8.pdf
    • http://copyrightshelpscenters.com/how_do_i_set_up_my_hp_wireless_printer_to_my_laptoptnde6.pdf
    • http://rte-ita.fun/dell_studio_540_cpu_upgradengz8s.pdf
    • http://weluzowivetukim.22web.org/kosunogebekejelijomep.pdf
    • http://xuxijosut.sportsontheweb.net/6-3_practice_tests_for_parallelograms_answers.pdf
    • http://mebel-albero.ru/6576585672eo3zi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://goxofokosiz.epizy.com/47585835008.pdf
    • https://38c8c62e-1823-4c1e-8220-bc61efcc8a1c.filesusr.com/ugd/c24b9b_dca9a9e22e5640b38140b9871cbed697.pdf?index=true
    • https://4a7d9d2b-1d67-446c-8d6d-bdd3043d1f60.filesusr.com/ugd/c3d078_8b416c0668174cb68da6b40b6a2e81b5.pdf?index=true
    • https://cbb9655c-b60d-4095-8c1c-bb5f9a2903c5.filesusr.com/ugd/4dd980_3d0cae36573b4502b8c35633721adf20.pdf?index=true
    • http://zasegusof.epizy.com/best_book_for_social_media_marketing_2019.pdf
    • http://fepadegan.epizy.com/tepatuwixudunatadimexam.pdf
    • https://6e337ffa-6c75-4e98-916f-0cab85e7e3f5.filesusr.com/ugd/a22560_4b4d3487bd274af1a1cf747961f51fb7.pdf?index=true
    • http://ratudafoxivux.rf.gd/amendment_to_operating_agreement.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_off0000eaa6.bin
013f4f73a8c4419eb204c38ee8b94cd81799dcabcfcacf572a4c70000d597f91		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA6 4992 bytes
font_01_sfnt_off0000fbcf.bin
22034d6829a51fb7d83e9139192f83e9f1c187b138e976b91b78690a48f5a087		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCF 11044 bytes

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