Malicious PDF — malware analysis report

Static analysis result for SHA-256 a821480f2d8659c3…

MALICIOUS

PDF

94.1 KB Created: 2021-03-17 10:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 877c266ed71294527b80f08037f08b21 SHA-1: 6a88c9c9d4d2944fc333bf80d4fa7351925f3c1d SHA-256: a821480f2d8659c331471a55917654886b8660d413dfac733db63f466412bd36
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 0.9996

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://ponafet.ru/wix?keyword=tv+guide+port+charlotte+fl PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471703/normal_6023e1fa6d45b.pdfIn PDF document text
    • http://tronreserve.online/jiwoduwerepituzofiruzk0q27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481420/normal_5fd88ce575a2e.pdfIn PDF document text
    • http://nazorizuz.medianewsonline.com/bonojinupomiruriwagit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460682/normal_60095a9de6ded.pdfIn PDF document text
    • http://summ-ita.space/lojibiwebenofejomxous.pdfIn PDF document text
    • http://dunodipike.sportsontheweb.net/69164468907.pdfIn PDF document text
    • http://smartline58.ru/how_to_clean_mitsubishi_heavy_industries_air_conditionersgcfb.pdfIn PDF document text
    • http://gokawojop.scienceontheweb.net/phenomenological_approaches_in_landscape_archaeology.pdfIn PDF document text
    • http://movizopolu.medianewsonline.com/30683799858.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/waxegatulo/gewopekumuturujama.pdfIn PDF document text
    • https://s3.amazonaws.com/nasitevu/klasifikasi_biota_laut.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/22956666196.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/22690990332.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/guidepost_prayer_line_phone_number.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/48606015014.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/xelufitigokotodexuvogajel.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/autoid_network_navigator_sr-_1000.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/we_the_animals_movie_plot.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/balancing_equations_worksheet_part_2_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/chipping_norton_school_uniform_shop.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/what_do_sunflowers_represent_spiritually.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E74 5248 bytes
SHA-256: fb58df8a2bea46574c168748c3b6d67aaaa09c5f20fba27b423b2dd865a983f3
font_01_sfnt_off0001405a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1405A 12224 bytes
SHA-256: 9382a133d6708672b29b7448677436dd2b9dd6f2844560bfa9ef4fae7d2fc809

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