Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea0262bc6743e6f…

MALICIOUS

PDF

91.6 KB Created: 2021-03-28 17:44:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f964ebd52eba48fd5d2259b2bd2aebc6 SHA-1: 4a25af4a07b8a96f290782201b1398a60ffa2469 SHA-256: 3ea0262bc6743e6f7e7dec38191ce94b4cbd44bd0645c2b9646859224ac308eb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to legal documents, aligning with phishing tactics.

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://maypoin.ru/award?keyword=fundamental+breach+of+contract+pdf
    • http://medazuxa.mywebcommunity.org/honda_hrx217vka_service_manual.pdf
    • http://xuzerujagojagip.scienceontheweb.net/gefumuvafosodirovebalasa.pdf
    • https://cdn-cms.f-static.net/uploads/4409840/normal_5fd2d191e6474.pdf
    • https://static.s123-cdn-static.com/uploads/4408463/normal_5fc998c278852.pdf
    • https://static.s123-cdn-static.com/uploads/4454808/normal_5ff9a7552392d.pdf
    • http://fomejejavegod.sportsontheweb.net/avatar_kyoshi_novel.pdf
    • http://paxawujaxoda.22web.org/88410331180.pdf
    • http://kisuzolaki.22web.org/supopubadexu.pdf
    • https://static.s123-cdn-static.com/uploads/4378379/normal_6008986549b3e.pdf
    • https://cdn-cms.f-static.net/uploads/4382208/normal_6017a7db0cfca.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://salalew.epizy.com/pogibomenijiwisidowasoka.pdf
    • http://gamadajizi.rf.gd/letter_of_intent_for_work_template.pdf
    • http://wowawese.rf.gd/achilles_atr_sport_2_performance_radial.pdf
    • http://roparewuna.rf.gd/convert_corel_file_to_online_free.pdf
    • https://uploads.strikinglycdn.com/files/ef927955-eae2-48c9-b414-6a808e8bd545/juvodinejadogila.pdf
    • https://uploads.strikinglycdn.com/files/2c028a9f-ff12-4edb-9149-52f1e559b390/kjv_rainbow_study_bible_maroon_leathertouch_indexed.pdf
    • http://vaxutere.rf.gd/how_much_do_foster_parents_get_paid_in_texas_2019.pdf
    • http://jofikuv.atwebpages.com/rezov.pdf
    • http://sisawujeza.rf.gd/bareilly_ki_barfi_movie_free_480p.pdf
    • http://tosutagi.rf.gd/sears_sport_20-sv_owners_manual.pdf
    • https://s3.amazonaws.com/lukepepe/lsat_preptest_68_answer_explanations.pdf
    • https://s3.amazonaws.com/fukepez/tegitofirag.pdf
    • https://uploads.strikinglycdn.com/files/61ed84e7-cae4-4df8-a0eb-3366c0945719/cls_license_requirements.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011b0f.bin
3f3feea5eb39b2653e0a7b738f804b26ff7f1c256d04230bbf3b0860f1f791ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B0F 5148 bytes
font_01_sfnt_off00012c52.bin
685a04ccb977fd65e01277873e40be4868ae24569fbb8f02b45f57429ae5ca08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C52 11240 bytes
font_02_sfnt_off0001526e.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1526E 4324 bytes

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