Malicious PDF — malware analysis report

Static analysis result for SHA-256 068a0bf581335f0b…

MALICIOUS

PDF

117.1 KB Created: 2021-02-18 12:41:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3a141423069ca42bb28a5c4d669e8247 SHA-1: 8fb05f19a3550cfd4345388fc2c9bac2a9e9e2a1 SHA-256: 068a0bf581335f0b532874d4734d5733a6e29936a4218ddc145938cf6d4a71a2
126 Risk Score

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 0.9995

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://leonvi.ru/wix?keyword=trials+in+tainted+space+ausar+treat PDF link annotation
    • https://besuxape.weebly.com/uploads/1/3/4/3/134374749/kegopowotu-zapozez-jokoligumunuze.pdfIn PDF document text
    • https://jufigewadekuxo.weebly.com/uploads/1/3/1/4/131406441/wajekonuxu.pdfIn PDF document text
    • http://tunezazetadu.22web.org/gomuge.pdfIn PDF document text
    • http://doriwev.iblogger.org/vajefeguzilukaliwazefome.pdfIn PDF document text
    • http://pevojatinolotej.22web.org/51624178377.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/ghgeAge/zopabipalefuru.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorabuzep/63rAkhb/shopdisney_uk_shipping_to_us.pdfIn PDF document text
    • https://mafinejolid.weebly.com/uploads/1/3/2/6/132683008/nofod_jadekewololefu_jaxegewolaw.pdfIn PDF document text
    • https://cdn.sqhk.co/dodanadofu/hdhficL/35398760123.pdfIn PDF document text
    • http://lidobexi.22web.org/cars_1_movie_in_telugu.pdfIn PDF document text
    • https://suxosuliresud.weebly.com/uploads/1/3/5/3/135351283/ramurakisejajo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://noxebujo.epizy.com/mercruiser_4.3_lx_horsepower.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/marriage_invitation_template_email.pdfIn PDF document text
    • http://muwuxivikunef.rf.gd/contribution_of_systematics_to_biology.pdfIn PDF document text
    • http://lizolubemerawi.epizy.com/89720122494.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/16830527698.pdfIn PDF document text
    • http://sexupoweduf.epizy.com/bibodirifobawuzupekexal.pdfIn PDF document text
    • http://xarotuwegu.rf.gd/badmash_toka_full_movie.pdfIn PDF document text
    • http://widafasamuj.epizy.com/zotebukasane.pdfIn PDF document text
    • http://tovedutineve.rf.gd/pubepukabebifexejidebem.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/29142913809.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/17637576638.pdfIn PDF document text
    • http://mosasawimip.epizy.com/bulbulay_shooter_game_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/27895843395.pdfIn PDF document text
    • http://molulig.epizy.com/hd_backgrounds_for_adobe_photoshop_free.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000181e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x181E8 5016 bytes
SHA-256: e9f70246f19245428972025b6b51be7d36e2dc077edbaf0e3fbedf9bc43eae78
font_01_sfnt_off00019301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19301 16896 bytes
SHA-256: 683cd776f58a0bf0cbe7f3e1f5c5b22f9986a14b557c6c79cd2e0f75aec01292

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