Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3143d5930eba794…

MALICIOUS

PDF

71.7 KB Created: 2021-04-01 06:30:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c1bad16f5062fcb9901c1b7b608f7525 SHA-1: 1a2e8a409ad96c23be3fc384fa1388564d894e56 SHA-256: b3143d5930eba794f012b426a58f3ffd84008a6646cfdd07359438f14c984efa
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jumiwimov.ru/strik?utm_term=polycom+soundstation+2+owners+manual PDF link annotation
    • http://tiktoktop.design/how_to_grow_lettuce_from_seed_step_by_step5cla0.pdfIn PDF document text
    • http://souve.me/how_to_remove_the_head_from_a_dyson_animalm16b9.pdfIn PDF document text
    • http://kinikapiv.22web.org/94951597327.pdfIn PDF document text
    • http://shopwithsale.website/despacito_line_dance_step_sheetd5q16.pdfIn PDF document text
    • http://lnstagramverifycentre.com/sex_and_the_city_series_dvdep690.pdfIn PDF document text
    • http://xewixejixukumes.22web.org/xazusufuzomura.pdfIn PDF document text
    • http://hq-cleartv.info/9085050553250ihg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/espn_memphis_grizzlies_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/ye_bhagwa_rang_status.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9427695-6dcb-4394-8314-e208426d1455/balute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b7a9a89-ee14-4c4e-a8bc-db03bf231756/20268315499.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/nikolosirowefoli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4a0faac-0c44-4347-b22d-bd25b9671fc6/does_lowes_sell_kenmore_dryer_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35d02249-7b32-40d8-b42e-2bafc358035b/codecademy_introduction_to_javascript_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/84540476357.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/are_troy_bilt_push_lawn_mowers_any_good.pdfIn PDF document text
    • http://vuruketunuwu.epizy.com/bhopal_express_hd_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/genesis_v2100_parts.pdfIn PDF document text
    • http://tuvatopuvonu.epizy.com/gemexajod.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/titebisoxarufaw.pdfIn PDF document text
    • http://pogudex.epizy.com/ritun.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/chaiyya_chaiyya_hd_video_song_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45af7563-bc7a-470f-86ac-8e72ee293aa8/nokodufajotikozapez.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/likofelukakodogovazawopis.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/36668877728.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_off0000d98b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98B 5412 bytes
SHA-256: df81fbbfbf90090e91239bed48b2b7301a9afd00f5c41945d687673c2e42bb6a
font_01_sfnt_off0000ebf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF3 10744 bytes
SHA-256: 84406445aa81e5e003bf4d61eb85a2381127171428dc6838d68556dd63edee1e

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