Malicious PDF — malware analysis report

Static analysis result for SHA-256 d15537683de18979…

MALICIOUS

PDF

47.6 KB Created: 2021-03-16 18:18:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d2d19ac0d2f639627f72bd70d3b5a05c SHA-1: b6161593a3adeb70bcfacf2999816f2064ecccb0 SHA-256: d15537683de18979ae1b822c23d1e328a463ac375d6ae6d12ba656609fb96bb4
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many pointing to disposable domains and potentially malicious hosting, indicating a link farm for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature. The document's structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7623

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.
  • 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
  • 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://lozipotod.ru/award?keyword=steel+furniture+design+catalog+pdf PDF link annotation
    • https://cdn.sqhk.co/suvotoruwot/jfTFhce/taxizodakedexaz.pdfIn PDF document text
    • http://creditscorehelp.info/how_to_build_strength_gymzxysi.pdfIn PDF document text
    • http://vnatural.space/behold_a_pale_horse_download989i6.pdfIn PDF document text
    • https://cdn.sqhk.co/mokabawimav/chcJVjf/66144477465.pdfIn PDF document text
    • http://mebovedu.getenjoyment.net/92330096189.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_60007a7615d0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403127/normal_60457328daa03.pdfIn PDF document text
    • https://cdn.sqhk.co/retakabif/vjhVTTP/hide_my_face_acid_ghost_testo.pdfIn PDF document text
    • http://spain50off.info/asfixia_alex_mirez_descargar_gratisjm0ea.pdfIn PDF document text
    • https://cdn.sqhk.co/nibedogoxov/ghihX9i/e-_pluribus_unum_coin_value_1971.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/wibTicw/69686606835.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/ji9hHib/nunuvosevozupogubega.pdfIn PDF document text
    • http://dabopoxele.getenjoyment.net/beatles_yesterday_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/5hijhaX/78735386342.pdfIn PDF document text
    • https://cdn.sqhk.co/gifidupuzuv/i91iCik/98958147709.pdfIn PDF document text
    • http://vkrowl.com/what_is_the_balance_sheet_used_for7uu5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374535/normal_603ef423539cd.pdfIn PDF document text
    • https://2d4b4c3f-e7cf-443e-b200-c27eae6bda74.filesusr.com/ugd/3b0c81_9865cf6c5cf34fc281345de6a4e0d69d.pdf?index=trueIn PDF document text
    • https://61df3396-90b5-4b69-a3ae-475c9da6ebc5.filesusr.com/ugd/516574_4010d7d23754488792c3a8b92b5c1266.pdf?index=trueIn PDF document text
    • https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_533ad9270c424707a365f7383783e6e3.pdf?index=trueIn PDF document text
    • https://67bb8873-ca08-4da4-87c0-60a8072ebff6.filesusr.com/ugd/a838c0_d8d0dd55f47b4c4fae1ce33416da67d1.pdf?index=trueIn PDF document text
    • https://1cdd1dcb-54a5-4750-95ad-c4cce9a68cd1.filesusr.com/ugd/1e32c2_637edbfbee8d4973bd69add0aa62195b.pdf?index=trueIn PDF document text
    • http://dijuvunote.onlinewebshop.net/employment_certificate_template.pdfIn PDF document text

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