Malicious PDF — malware analysis report

Static analysis result for SHA-256 0246f40bf95d8f4c…

MALICIOUS

PDF

81.5 KB Created: 2021-03-23 12:53:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e44ee9162228a37a6f64983a8ae48aa1 SHA-1: b7e793717663e971166d3c755f0b5744b924b85e SHA-256: 0246f40bf95d8f4c24d99b7735dc7d25e7aa60546b7a61942c846b2c7e323b1a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://golowaki.ru/wix?keyword=crimes+of+grindelwald+blu+ray+release+date PDF link annotation
    • http://disozire.mygamesonline.org/bazasokesiwivujezudol.pdfIn PDF document text
    • https://cdn.sqhk.co/rodesedaded/hgieSzB/11274841303.pdfIn PDF document text
    • http://zuvilivupeke.iblogger.org/the_articles_in_english_grammar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495974/normal_6056b9f394964.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443602/normal_6047e48e51a3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421036/normal_601fff4212454.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/hgUiC90/lewagap.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/hfVgiRE/bematech_lr2000_driver.pdfIn PDF document text
    • https://cdn.sqhk.co/bevurokakug/VidRIig/tamojinagazutoweji.pdfIn PDF document text
    • http://warowusavi.mywebcommunity.org/83869684168.pdfIn PDF document text
    • https://cdn.sqhk.co/dujuxafetot/6jb7tJK/gravity_falls_mabel_x_pacifica.pdfIn PDF document text
    • http://semasinizitowo.medianewsonline.com/mummies_magic_and_medicine_in_ancient_egypt.pdfIn PDF document text
    • http://jasazotinalol.mygamesonline.org/paxokolades.pdfIn PDF document text
    • http://jesofazom.iblogger.org/kafugadokukuwonesabat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dokaxemimagi.epizy.com/g_shock_mudmaster_wr20bar_price_in_india.pdfIn PDF document text
    • http://wasaxotudulolo.epizy.com/vans_era_sk8-_hi_stacked_platform_sneaker.pdfIn PDF document text
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_88c278472fdc4e8396b70c41ca31726c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/84900268157.pdfIn PDF document text
    • http://mobaramitutukox.rf.gd/13685665111.pdfIn PDF document text
    • https://66f9544f-8325-470d-a543-c07714603334.filesusr.com/ugd/4b2642_ca839f7e98dd423bb85e4de18023870c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/anjali_jewellers_apps.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_off0000fd64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD64 5468 bytes
SHA-256: e77d38e756ebd7c9db39ea0bf51f9bb60ce02bb4102a91ed07d7cba8d87008c3
font_01_sfnt_off00010ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF4 11948 bytes
SHA-256: cb0f135ee5883e98c9e54563904f0dbc2a9e9e410da5ac88b585b2f147d5c4a3

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