Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0c86e744e6ca2d…

MALICIOUS

PDF

78.4 KB Created: 2021-03-19 08:47:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8a817d56f3986327a5a20f8b0a97a666 SHA-1: 202c2de6af28b11c848a5c739cbe62ae88d016f7 SHA-256: 0f0c86e744e6ca2dd9a1a66a77ef7efecc887cfcbd232d363d9c77130a586d6a
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 0.9997

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://jacksth.ru/123?utm_term=beatles+guitar+chords+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418370/normal_5fd9d7e47c2a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485157/normal_5fee064ad3f84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383446/normal_6003db9f09806.pdfIn PDF document text
    • http://xofebuledat.scienceontheweb.net/what_is_iso_fssc_22000.pdfIn PDF document text
    • http://mokuduvejevuz.scienceontheweb.net/chemistry_periodic_table_quiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/946e5a3b-b2e6-492b-a133-f9a7075816ac/gaxoxepesitefazo.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/96624471801.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beecee7d-7477-41aa-95a8-c6c01fc9e790/how_do_you_test_a_pressure_transducer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/736c7ce1-f0f1-4352-8a89-e01996b8181b/wumon.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/casio_projector_software.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/understanding_comics_scott.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/28588987718.pdfIn PDF document text
    • http://gumomexad.onlinewebshop.net/25383042036.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/nuzimed.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/bomimerojikazupunufigab.pdfIn PDF document text
    • http://wiwosotu.myartsonline.com/monopoly_rules_buying_houses_in_jail.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/52488572374.pdfIn PDF document text
    • http://bemabam.myartsonline.com/73780985622.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/bst_dongle_latest_setup_3._51.pdfIn PDF document text
    • http://xafibejijopo.atwebpages.com/piniwavadezinalatudize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/225399bc-8b39-4873-b334-d2d43c825034/65179212869.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_off0000f508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF508 5468 bytes
SHA-256: db4adc7770ee22e1bc53429ee3f5e8039d3f7e2e48609948ac68118535369ff7
font_01_sfnt_off0001079d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1079D 10732 bytes
SHA-256: 54a713f5112874525b637cbd041441effbf62bab6edf816705fac460e3088238

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