Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8ae7962e3ac12a…

MALICIOUS

PDF

83.5 KB Created: 2021-03-15 03:22:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 538b0f4ce786d973aa589242fa9e65e0 SHA-1: eb0af800d1ba7669301dfcd7acf5c1d2c6e42bc8 SHA-256: 6c8ae7962e3ac12a8c8d84cfea5cbfb7d50976661679554afba4fae12ead26a2
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an external URI pointing to a suspicious domain, suggesting it's part of a phishing campaign or a malware distribution scheme. The document body, though heavily obfuscated, appears to reference legal document keywords, reinforcing the lure. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly suggest a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/award?keyword=solid+waste+management+act+philippines+pdf
    • http://snatural.space/97366340707u0z1u.pdf
    • http://hookup158.fun/sedetadax52dwr.pdf
    • https://static.s123-cdn-static.com/uploads/4474475/normal_5ff6af17ca1d3.pdf
    • http://optamorem.com/apocalypto_2_tamil_dubbed_hd_movietgnvc.pdf
    • http://mebevevi.mywebcommunity.org/biwapapubizurovujobobinit.pdf
    • http://tubujagowip.iblogger.org/flowers_in_the_attic_2014_age_rating.pdf
    • https://cdn-cms.f-static.net/uploads/4389084/normal_601f52e3ec0e5.pdf
    • http://reduslim-siteofficial.site/skater_xl_maps_ps45sxel.pdf
    • https://static.s123-cdn-static.com/uploads/4425921/normal_600259592d793.pdf
    • http://kaxiwemusemoj.mypressonline.com/26419315918.pdf
    • http://risumeboze.getenjoyment.net/water_and_wastewater_engineering_mackenzie_davis_solutions.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a6d9df4d-7918-4168-9813-e8912bfe7334/yajurveda_trikala_sandhyavandanam_kannada.pdf
    • http://kojumajofub.rf.gd/bujifavu.pdf
    • https://uploads.strikinglycdn.com/files/e9d94511-0d76-4b6b-b98f-10f6c7184b35/daviremofozokul.pdf
    • https://uploads.strikinglycdn.com/files/7f6ae89f-39e0-4eb2-be3a-e50b451a7d02/24448179926.pdf
    • http://poresiz.epizy.com/song_blackpink_forever_young_ilkpop.pdf
    • https://uploads.strikinglycdn.com/files/8d461984-3e48-4c79-933c-e88c956f6c51/franz_kafka_books.pdf
    • http://tirawuko.rf.gd/xegif.pdf
    • http://ditiziwux.rf.gd/cal_king_bed_sheet_sets.pdf
    • http://kirojera.rf.gd/nadodarewozurisa.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_off000106cd.bin
5b33ed763ae1babc4b55a3ba8a951f89ac5c7a725ab9cdc6db8e667403085c05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106CD 5668 bytes
font_01_sfnt_off00011a0f.bin
5b2bbf40e878a49cfbc46767e160403ae909caa6ed1a9227ef572b8446849564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A0F 11196 bytes

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