Malicious PDF — malware analysis report

Static analysis result for SHA-256 651aee84a71356b7…

MALICIOUS

PDF

89.7 KB Created: 2021-03-20 07:26:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c23466085530ef38b1f387d381d4f6b2 SHA-1: 23988fa52505d57984d45d1420176cb7470dc20a SHA-256: 651aee84a71356b706ecdb9667d356777c85e1105d384cfa78612f2c139bab4f
126 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though heavily garbled, contains text related to 'Chronicles of Narnia 3 full movie watch online', suggesting a lure to trick users into clicking malicious links. The presence of external URIs and link farm heuristics indicates a strong intent to redirect users to potentially harmful websites.

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://botokaw.ru/strik?utm_term=chronicles+of+narnia+3+full+movie+watch+online PDF link annotation
    • http://kartaidatodemeleri.com/juwulutoawxhd.pdfIn PDF document text
    • http://shtangelkipokupkiitd.online/brian_froud_faeriesywgbn.pdfIn PDF document text
    • http://jajuviramigawo.medianewsonline.com/alchimistul_gratis.pdfIn PDF document text
    • http://allerop.xyz/update_windows_10_mtp_drivers_manuallyzh4xg.pdfIn PDF document text
    • http://weridif.medianewsonline.com/gogimalilusemarefe.pdfIn PDF document text
    • http://italia-doc.fun/why_is_algernon_important_to_charliedv5pa.pdfIn PDF document text
    • http://jomotew.iblogger.org/memokewemumadibodo.pdfIn PDF document text
    • http://porn77.design/how_to_write_about_a_sculpturecpmp2.pdfIn PDF document text
    • http://mitimewigupito.mypressonline.com/how_to_become_a_dj_for_beginners_with_laptop.pdfIn PDF document text
    • http://appeal-ig.com/lazosuzljfxe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tenurusimuxu.epizy.com/masterarbeit_informatik_anforderungsanalyse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/028b76f5-e8e5-4333-b00e-671439db8220/collectors_2020_korean_movie_watch_online.pdfIn PDF document text
    • http://lejiletuvasipib.onlinewebshop.net/wudemorulerexumibi.pdfIn PDF document text
    • http://gatopaxabijux.epizy.com/18317933678.pdfIn PDF document text
    • http://malejubu.myartsonline.com/andres_torres_queiruga.pdfIn PDF document text
    • https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_fb029fcbc4404892a2d3f44d6301fa5a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/77f01259-0cd4-4736-a097-564fca63c0d0/the_crown_cast_season_3_diana.pdfIn PDF document text
    • https://9c33b4df-6f14-41ad-9e94-a3a23f7ed20d.filesusr.com/ugd/2a975f_f0eef9db26334b2ca039df4601692f5d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac161654-7caa-4a37-a07e-d44480cca499/best_solvent_for_recrystallization_of_acetaminophen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65665802-ee7e-47b1-a40d-eba5ff558ba5/online_investing_for_beginners_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d2c771f-5327-43e7-8b15-4386b88dba0f/1996_jeep_cherokee_country.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_off00012308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12308 5344 bytes
SHA-256: 71f680199180c700e13043c247ad909d26486289e81955f3b9adf889241821d3
font_01_sfnt_off00013519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13519 10524 bytes
SHA-256: 26edd97530f3a8480259ac5985d802d4227558e52e8b9b707ed489894d18cf86

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