Malicious PDF — malware analysis report

Static analysis result for SHA-256 02059d63d0096808…

MALICIOUS

PDF

83.0 KB Created: 2021-04-06 15:19:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66073477404a93a4ee9ebc1a75bd7223 SHA-1: 6baa156a7cd0227a19fa86a171eb90fa737e6a31 SHA-256: 02059d63d0096808944ae93b64872c2d69a5c98ecaab80e0d2b828c3f28a56da
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The document contains numerous external URIs, many pointing to disposable hosting, suggesting a link farm or phishing lure. The presence of embedded URLs and the overall structure strongly indicate an attempt to redirect users to malicious websites, likely for further exploitation or credential harvesting.

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://lozipotod.ru/award?keyword=historia+de+las+asambleas+de+dios+en+colombia+pdf
    • http://zenifotekani.iblogger.org/42362710316.pdf
    • https://cdn.sqhk.co/muwunupudi/esINhju/paradise_island_bahamas_homes_for_sale.pdf
    • http://vipmanmarket.space/9743672871up74k.pdf
    • http://mini-cam2.club/h8tqj.pdf
    • https://cdn-cms.f-static.net/uploads/4391899/normal_6046663ea551f.pdf
    • http://cyberghost.store/36797149789ikppy.pdf
    • http://mavogevuz.getenjoyment.net/math_exponents_worksheets.pdf
    • http://idealslimitalia-oficial.site/how_to_pair_clarion_cz315e_bluetoothpiocb.pdf
    • http://believes.space/bejaziwutezagupeja7fyxr.pdf
    • https://cdn-cms.f-static.net/uploads/4415070/normal_6010d081703a7.pdf
    • https://cdn-cms.f-static.net/uploads/4426279/normal_600ca38a0d424.pdf
    • https://cdn-cms.f-static.net/uploads/4374835/normal_6030f62a3e286.pdf
    • https://cdn.sqhk.co/rotuzuwibi/Bywhcge/national_geographic_magazine_2018.pdf
    • https://cdn-cms.f-static.net/uploads/4486354/normal_603b3d3d8dbdd.pdf
    • http://sexapixir.22web.org/22657157763.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jolavewavesuj.epizy.com/16429691482.pdf
    • http://rinonefor.rf.gd/lenovo_t420_laptop_not_charging.pdf
    • http://miganuvag.myartsonline.com/past_simple_past_continuous_exercises_perfect_english.pdf
    • http://nalujisutu.epizy.com/mujaluxe.pdf
    • http://luzojora.atwebpages.com/public_administration_and_management_in_south_africa_download.pdf
    • http://jetetejev.rf.gd/839078767.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fed2.bin
4bb699b03f756052570942b61c41ff74310b079feedea2f1775f1ebf6bec9e3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFED2 5404 bytes
font_01_sfnt_off00011111.bin
500c64a2c693cf39f8d17ff5a3bc6c9b8e43e298ca633f2045650170c5932460		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11111 13852 bytes

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