Malicious PDF — malware analysis report

Static analysis result for SHA-256 d932c46b8f22c61c…

MALICIOUS

PDF

75.1 KB Created: 2021-03-17 12:38:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: eaa0814337da506db421552254a1c9e5 SHA-1: 267fb9e6cf09a0b7335a6010d1e6e61a00acb2ee SHA-256: d932c46b8f22c61c211dfbedae19782f4124b58b976225654ced002efa681a57
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 0.9998

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://botokaw.ru/wix?keyword=roblox+value+leaderboard PDF link annotation
    • https://dusibijerike.weebly.com/uploads/1/3/2/6/132695870/e6633dfcf.pdfIn PDF document text
    • http://titoto.xyz/how_to_shift_a_8_speed_eaton_fuller_transmissionuho4z.pdfIn PDF document text
    • http://net-klientov.ru/samsung_tv_technical_support_canada_phone_numbernhiu4.pdfIn PDF document text
    • http://plusstore.pro/gewuxevupedajopiz129wd.pdfIn PDF document text
    • http://negozio50sconto.info/kugakapqqg2q.pdfIn PDF document text
    • https://tunefanixeso.weebly.com/uploads/1/3/4/7/134733210/gutubuvuz.pdfIn PDF document text
    • http://sq11mini.com/44612350551p6stj.pdfIn PDF document text
    • http://llloooodddd.space/jebisusatenumeci5k.pdfIn PDF document text
    • https://xaburopufazig.weebly.com/uploads/1/3/6/0/136051881/856427.pdfIn PDF document text
    • https://darojavanobize.weebly.com/uploads/1/3/4/8/134889586/detenagor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kutegogugilavo.epizy.com/74205885130.pdfIn PDF document text
    • http://waguxinev.rf.gd/tp_link_smart_plug_stopped_working.pdfIn PDF document text
    • http://duguzikazom.rf.gd/jixiji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f470337-cfa6-4940-8c21-9f36d868589c/rufoxad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ac17dd0-11aa-46a1-bef0-57246c2501df/brainpop_ell_free_trial.pdfIn PDF document text
    • http://bebefavovujeji.rf.gd/clear_speech_strategies_visual.pdfIn PDF document text
    • http://tekunobujolid.epizy.com/5_basic_human_needs_maslow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86e88953-7b89-4fa9-9d02-14d7f4bf964a/lolelixuseduwoferaw.pdfIn PDF document text
    • http://lememisuxelivem.rf.gd/mewolivevu.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_off0000eacb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACB 4916 bytes
SHA-256: b32dcceaedd87c8bec8a42239a395569fcdf3795e37c8047a38effaed2684cbc
font_01_sfnt_off0000fb9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9C 10400 bytes
SHA-256: 849da2bb7c7e613a68224ac8d997c510725cab17ffb9f592490e023afca64cd2

Open this report in the interactive analyzer, or submit your own file for analysis.