Malicious PDF — malware analysis report

Static analysis result for SHA-256 79a0e6b67a819755…

MALICIOUS

PDF

76.3 KB Created: 2021-03-16 22:06:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3ab3e56b96f6a40206b69a1e40a95bf7 SHA-1: f80015c514ee7b54945ba8c8b77da3f446ee03cc SHA-256: 79a0e6b67a81975547e0707cbeaab5845bbbf6e25c6ec92beff46a7438bbc486
96 Risk Score

Malware Insights

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

The PDF file contains a URL that redirects to a malicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to a coffee maker to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/strik?utm_term=how+to+run+the+clean+cycle+on+braun+coffee+maker PDF link annotation
    • http://fizarumokugafu.mywebcommunity.org/59910350875.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/ciijbhb/dj_name_mixer_in_online_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/fegokirar/gjeLgf3/new_version_chrome_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/jfiahjW/momovakapopurijowubedajat.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/ighgjij/ziwikuvotibanubonatawiweb.pdfIn PDF document text
    • http://xonigej.mypressonline.com/how_to_install_scroll_saw_blade.pdfIn PDF document text
    • https://cdn.sqhk.co/vufebevefo/diafjcH/last_cloudia_japanese_unit_tier_list.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/umHjagj/champions_hockey_league_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/leruwexikud/hahaRhi/top_10_viral_videos_of_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadoromutisagar.myartsonline.com/nordyne_gas_furnace_pilot_light.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74acb13f-9730-4830-b067-d6d93cdefc33/10941704201.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e436045-99d1-406c-911c-2008830dcf65/catherine_ponder_prosperity_affirmations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaf87b1d-babc-4999-8fd3-36ff792e7354/mw_m2_to_mw_cm2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d33859c8-c2b4-49d6-957b-e2a8b7e1b38f/napowujikoji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69bd65fb-9967-42ba-9683-b6c4bc936f81/21265882960.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/tivudekumamonarazinizube.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/12748777479.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3cd9da0-6525-405b-8b93-95fb88a7cf35/interesting_facts_about_samuel_beckett_bridge.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/icann_whois_contact_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb0f6c21-787a-4098-bc35-34dbd5865bd6/48307046477.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_off0000ec5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5F 5300 bytes
SHA-256: fef9d3a46cc201e2fca5eea673219fd0ab8bf99e0fb8912bdc00a1939b9d49f0
font_01_sfnt_off0000fe5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE5A 10828 bytes
SHA-256: 469a18c64de8e5001746cded217195ccf1c5304b239b171687cfb2d1ac2ac231

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