Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df3cefa6348c9b6…

MALICIOUS

PDF

83.3 KB Created: 2021-03-22 12:53:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: bf3ad4e9ba7fc15f904905357a86e1ee SHA-1: 7d1e2a7b9b595b47d6a9a110c53f56713893964e SHA-256: 2df3cefa6348c9b61c26677d1ca0dbf6669bdd833c8283808b5fd483b08dded0
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL designed to trick users into visiting a malicious website. The URL is presented as a search result for a specific query, indicating a phishing or social engineering attempt. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of external URIs further supports this.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/award?keyword=water+pollution+in+marathi+pdf+file PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481994/normal_600b2315ebbb6.pdfIn PDF document text
    • http://bathforlegs.xyz/tofirabevivebunavulibebd5hfi.pdfIn PDF document text
    • http://kartaidatodemeleri.com/resistance_band_workout_for_bigger_gluteshr9yc.pdfIn PDF document text
    • http://russianpatentexpert.com/how_to_set_up_my_account_with_service_canada666lq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462344/normal_6052e1438c5f4.pdfIn PDF document text
    • http://health2health.online/ag3_mods_pack4aqxn.pdfIn PDF document text
    • http://fadovemani.iblogger.org/kufewekober.pdfIn PDF document text
    • http://umkatrade.ru/9563073523hk6tr.pdfIn PDF document text
    • http://lixuninipakimar.iblogger.org/40960359048.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pegozegi/warhammer_40k_8th_edition_rules_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/facebook_videos_1080p_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/borokegujuzero/58980628029.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/xuwafuduke.pdfIn PDF document text
    • http://pumeluwona.epizy.com/writing_a_news_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/65095249227.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/zuluwavedawibeduwafoj.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/81653568523.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/garmin_etrex_10_setting_waypoints.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/how_to_desire_god_more.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/zurota.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAB 4996 bytes
SHA-256: 9a5b07278fbef0ec83bfaf1cab6b97de3d3d73fe74cec3252b8d79e2e53989d4
font_01_sfnt_off00010c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7C 11024 bytes
SHA-256: f7090615c018b940369589f430e3e430d1e4eb6ec9388190ee0f64e6c5a9ee26
font_02_sfnt_off00013228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13228 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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