Malicious PDF — malware analysis report

Static analysis result for SHA-256 980d80a8979ed0d4…

MALICIOUS

PDF

79.9 KB Created: 2021-01-03 10:19:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ba0ea2aa6c92bb5dfde96e986e4de31a SHA-1: e74303d5588d8bdea6324728f4b3ac59f0a59793 SHA-256: 980d80a8979ed0d4e8baf766088550c86accd3c34284690ecf1687d21970593a
156 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 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffine.ru/123?utm_term=magic+items+for+tempest+cleric+5e PDF link annotation
    • https://cdn.sqhk.co/jowapezo/BNNgc5d/96812107814.pdfIn PDF document text
    • https://lefusavuforuv.weebly.com/uploads/1/3/4/4/134490278/5860614.pdfIn PDF document text
    • https://tujurexi.weebly.com/uploads/1/3/4/7/134743655/dilejoloxovab-mogivanuvagep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372376/normal_5fc7d489750cc.pdfIn PDF document text
    • https://degezumibupupek.weebly.com/uploads/1/3/4/8/134862322/9549391.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/3d979e5afe68c48.pdfIn PDF document text
    • https://cdn.sqhk.co/pufojoloz/SCZXoEA/drift_race_car_driving_simulator_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gomalajipo/i1ghugg/8423829584.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458635/normal_5fb2941ab4158.pdfIn PDF document text
    • https://cdn.sqhk.co/lilanoto/8ifWkii/6773972721.pdfIn PDF document text
    • https://taxufutusa.weebly.com/uploads/1/3/4/5/134514166/katopokujofigujet.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/tedowafomaru/3d_photos_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/haggard_middle_school_nurse.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/piwotufosiparu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/864b2923-00f8-4a42-9285-1614554813e3/gowolebigujatuzepigi.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/50398812327.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/semalifovidigozewuw.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE560 5464 bytes
SHA-256: 37c49848b05014220b314b7b7f9aa87992d5edcc83b17ce2fcf510dd84bca8c8
font_01_sfnt_off0000f7f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F6 10244 bytes
SHA-256: 45f76b309bc7592eabe9005ca4bcb4f68e01566acc4a5a8e50d4f37905cb5208
font_02_sfnt_off00011b47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B47 16616 bytes
SHA-256: 7ab81ce3d92a9ec80982bbbf7df4378fdf9290867a146be245f32411f9d17586

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