Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c29c79f8a24ea89…

MALICIOUS

PDF

84.7 KB Created: 2021-02-03 03:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 98952a42887ea2d76703bd0317179e69 SHA-1: 2d4f60e894e8c0cb2ce72249a6f4ba2e31cf1115 SHA-256: 8c29c79f8a24ea89664b11f44fc53a73c5f932e44c32cd3abc07807b5cec4a68
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to product listings, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/aws?utm_term=deep+pocket+flannel+sheets+king+size PDF link annotation
    • https://cdn.sqhk.co/pujixefan/gdidRcI/stickman_and_shotgun_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/jdgjbx4/tricky_riddles_brain_teasers_with_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/tozegatopaxu/djbjjjf/imf_grant_fox_news.pdfIn PDF document text
    • https://cdn.sqhk.co/bitubebo/jeiI3ja/sustainable_operations_management_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/revinoxu/jaicIha/fopixexizefidefiv.pdfIn PDF document text
    • https://cdn.sqhk.co/nimabugokofa/igihk7E/okay_good_deal.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/legesiliv/zatib.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/ajith_new_movie_photos.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/fevuja.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/airport_utility_application_android.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/75909562533.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/dulenawopewulibewenox.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/lam_research_corporation_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/goodreader_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/bxmix_fact_sheet_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/jetewomafexiralusezen.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/cv_templates_ireland.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/marketing_mix_social_media_platform.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_off00010db9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB9 5296 bytes
SHA-256: 58a7cbc1adfc24fe47d1042657f0d53b5531b67b02f92324f456821140b915ff
font_01_sfnt_off00011fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FD7 11048 bytes
SHA-256: 9634a2ecd1c5c6f426a268d92b2710f888961994481022ca5571be6c4beca898

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