Malicious PDF — malware analysis report

Static analysis result for SHA-256 f448a97729167069…

MALICIOUS

PDF

74.8 KB Created: 2021-03-15 07:58:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52a0f6f279148a50b90952ae18cd1da3 SHA-1: aefc2cf826c15cc42144504185381cc30910bb66 SHA-256: f448a977291670693fe3723849fb6f57f30fe6e83a3749cffd3ff172d9eac2d1
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially corrupted, suggests a lure related to an 'Ipod shuffle user guide'. The presence of numerous external URLs, including one pointing to 'seumenha.ru', indicates the document is likely designed to redirect users to malicious content or phishing sites. No scripts were extracted, but the PDF structure itself likely contains embedded malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://seumenha.ru/wix?keyword=ipod+shuffle+user+guide+2nd+generation
    • http://nikecortez.net/video_change_up_seventeen086nz.pdf
    • https://cdn-cms.f-static.net/uploads/4417216/normal_6042ddf568e8e.pdf
    • http://palikexifumalam.mywebcommunity.org/robigowobez.pdf
    • http://keripudatoxene.iblogger.org/xigixutuvebikojoravik.pdf
    • http://xuxisozolawub.22web.org/agregados_monetarios_definicion.pdf
    • http://apsmall.space/wexevedosuju2177v.pdf
    • https://cdn-cms.f-static.net/uploads/4423189/normal_5fe8bd970c664.pdf
    • http://welitizenowem.mywebcommunity.org/unreal_engine_4_book_download.pdf
    • https://cdn-cms.f-static.net/uploads/4410714/normal_5fdc5a9d286c4.pdf
    • https://static.s123-cdn-static.com/uploads/4379732/normal_5fe1296b4a3a5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://divimoxigorube.epizy.com/how_to_pack_a_shoebox_samaritans_purse.pdf
    • https://uploads.strikinglycdn.com/files/fc624390-5d93-4dfe-83a4-ed833e2f2477/neato_xv-21_manual.pdf
    • https://s3.amazonaws.com/loranoduzuja/gelanewarezonagazijo.pdf
    • https://uploads.strikinglycdn.com/files/7a256b0f-4657-4297-ba33-ee5d9cba95f8/51258919991.pdf
    • http://lojokedasu.rf.gd/boss_260_performance_parts.pdf
    • https://s3.amazonaws.com/wiwamoxamo/92828040734.pdf
    • https://s3.amazonaws.com/sedimeraxufi/consumer_reports_robot_vacuum_ratings.pdf
    • https://uploads.strikinglycdn.com/files/59a649c0-d21c-4fda-8a3e-bda2be6dd5d8/xirates.pdf
    • https://s3.amazonaws.com/befarekogol/self_coaching_101.pdf
    • https://uploads.strikinglycdn.com/files/3416291e-a345-42e2-9865-b7b260619e8e/batman_vs_joker_the_dark_knight_returns_full_movie_in_hindi.pdf
    • https://uploads.strikinglycdn.com/files/939ca317-ca52-4479-bcd2-f2984f0a14fe/the_shack_restaurant_cherry_grove_beach.pdf
    • http://lopakesuzuw.atwebpages.com/36275151050.pdf
    • http://sabixukavizom.myartsonline.com/speakeasy_bar_and_grill_bar_rescue.pdf
    • http://kudugumokob.epizy.com/66574915758.pdf
    • https://s3.amazonaws.com/fokapikow/free_printable_christmas_bunting_template.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_off0000e632.bin
9bd92a3e1e8c486ade7f6f722c94628dda04c8532d497f15700b8d496a81e72a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE632 5372 bytes
font_01_sfnt_off0000f871.bin
cef5d1c03d7bbba22aa95d8824e39dad732c82d449a7e7ca5af68c5eed5f1125		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF871 10376 bytes

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