Malicious PDF — malware analysis report

Static analysis result for SHA-256 14de8da96656782e…

MALICIOUS

PDF

76.5 KB Created: 2021-03-20 22:31:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: cfe211cb1e94af3b3cdf6dbf64b5ce6b SHA-1: 463d365ce3f52995a1c454e28b87cc49af693fc6 SHA-256: 14de8da96656782e8d52adc396ce062e7735c5061f3905e0101a6f5108f9e531
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous external URIs and a link farm structure suggests an attempt to direct users to external resources, likely for phishing or malware distribution. The embedded URL 'https://jacksth.ru/wix?keyword=peggo+apk+2020' is a primary indicator of this malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jacksth.ru/wix?keyword=peggo+apk+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4526930/normal_603c2ed40ee91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426697/normal_600a6dce772cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451348/normal_601a29dad2509.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464870/normal_5fe2a2b0e8398.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412387/normal_6046e8584214a.pdfIn PDF document text
    • http://streichpack.online/logiciel_plan_electrique_maison_belgiquej6orp.pdfIn PDF document text
    • http://goodxday.xyz/tojutiviwajuxiip0fm.pdfIn PDF document text
    • http://premial.su/xobopl9pvf.pdfIn PDF document text
    • http://idealica-co.site/32194586153tryaw.pdfIn PDF document text
    • http://baffer-shop.space/sword_coast_adventurers_guide_tsc72e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421329/normal_604cff23e8c19.pdfIn PDF document text
    • http://dfwshootersupply.com/what_is_eva_greens_net_worthsxjng.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390385/normal_5fdc491b17d61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383915/normal_5fe86a4293558.pdfIn PDF document text
    • http://perevod24-card2card.site/favorite_pokemon_of_each_type_templatetp831.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba513c00-ea3f-41ef-ba06-51ea0545315a/paboganatururaxararozav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca0b521-0ace-4668-997a-b7f68851e258/56814850417.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57a81392-e566-4011-ac13-8cbf83a4b8c6/tolalovi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e761476-03e4-4841-b22b-5b07c587fb07/sidemen_the_book_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d441cd33-b052-4091-be7d-7f8fa48d803a/shimano_di2_ultegra_tt_shifters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7fab6e2-5721-4da7-9d1b-787ec58704b1/27431705005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4678b811-d9fd-4643-b6a5-6461c97bcafc/xivopujenepir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c324979-8c31-4850-94a9-c6303cb57495/how_many_milk_ducts_in_a_womans_breast.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_off0000eed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED0 5020 bytes
SHA-256: 8cb7dcaa9e31fa8c381f5bf62f717c322a0ceacabd0e4f2fe4ceba75c26a82d0
font_01_sfnt_off00010009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10009 10864 bytes
SHA-256: 715ee4fb2697946bbba423eab57a6838614ec08f882e5ad6e05623016266ed3e

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