Malicious PDF — malware analysis report

Static analysis result for SHA-256 20110ab8f0328e6f…

MALICIOUS

PDF

83.5 KB Created: 2021-02-21 08:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d1c693cb6efb6a12866c61fec2aea895 SHA-1: 38941f793fa4e82b345cadd7ad1d1eb941843edc SHA-256: 20110ab8f0328e6f1a810d2dc20a1eb8bf7de464fd45cee46a47e8a8fe08a79c
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 0.9998

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/wix?keyword=introduction+to+sociology+test+1+study+guide PDF link annotation
    • https://cdn.sqhk.co/xakelafu/oiiQgcd/cafe_racer_parts_for_sale_philippines.pdfIn PDF document text
    • http://sedobepotorosi.22web.org/kenmore_elite_french_door_refrigerator_ice_maker_leaking.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482219/normal_5fd29b097eace.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/nid1jdE/the_wolf_of_wall_street_margot_robbie_accent.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/dTud0jj/56271330545.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487622/normal_5fcc70363a24f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426688/normal_602a70ad0b9c7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dobikasukavu/40900871993.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/58946334958.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/vusitofupixirisitovekos.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/week_4_nfl_power_rankings_bleacher_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/27180724924.pdfIn PDF document text
    • http://laganomezavarof.epizy.com/expressive_aphasia_worksheets_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/how_to_fix_a_panasonic_microwave_door.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/92317005601.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/39722695398.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC1 4868 bytes
SHA-256: 89c461e4efd8c5aca6f0634b9b134261f3c747b1f0a5894452b0a3867829f5c9
font_01_sfnt_off00010d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D64 10896 bytes
SHA-256: 630c099180755f5b6c11434fbd8a8b7b199f2828166464e419093d74c5d89c4b
font_02_sfnt_off00013233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13233 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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