Malicious PDF — malware analysis report

Static analysis result for SHA-256 7826b97795ca7211…

MALICIOUS

PDF

80.2 KB Created: 2021-03-25 03:03:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 891034f45a7a2dc1d5f838001d28d479 SHA-1: 361600967e7b81b977cb5f5565a5824e3a278e4c SHA-256: 7826b97795ca721176e083eabd7bf818c92ed815d060ba9ab1213060d3954caa
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'botokaw.ru', which is likely part of a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect users to malicious content, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/wix?keyword=nature+cleric+5e PDF link annotation
    • http://hotita.fun/32722211264vwcyp.pdfIn PDF document text
    • https://cdn.sqhk.co/zofagopipowi/zRjgjej/ace_combat_7_free_download.pdfIn PDF document text
    • http://beststudent.space/10232601583da16e.pdfIn PDF document text
    • http://handler-autoscout24.com/zegewewuzomarxsgol.pdfIn PDF document text
    • https://cdn.sqhk.co/mekurapiw/btiggcr/wingstop_delivery_promo_code.pdfIn PDF document text
    • https://cdn.sqhk.co/dijowasedop/CsVih9v/15166393302.pdfIn PDF document text
    • https://cdn.sqhk.co/podidiwi/ib6gfn4/43278842047.pdfIn PDF document text
    • https://cdn.sqhk.co/zekuxemelop/iegh1Vx/kokumenegodegotemuwig.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/Bq0UjeF/tevurivixefawozonunofibu.pdfIn PDF document text
    • https://cdn.sqhk.co/vavegewumur/djhYXhj/infection_prevention_and_control_training_courses.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/jamuluvuvava/allah_rudal_ke_part_video.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/49726348391.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/vupuzuna.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/5271908120.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/colorectal_cancer_screening_guidelines_2018_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/how_does_big_boss_die_in_mgs4.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/22696685190.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/11795092266.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/sepijidowimabaxidu.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/1142178549.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/dc_library_overdrive.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/wevaporafuwudafaxetefofi.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_off0000ffd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD4 4708 bytes
SHA-256: 962b109de8b28813fffd1aafcf24a9576e029696b20e80f06d6eb48d2b760a95
font_01_sfnt_off00010fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FEA 10508 bytes
SHA-256: 3e6503812768d564f7fd0c7dfd5e92d574d3b693f325744acaa0fda4be8ae02a

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