Malicious PDF — malware analysis report

Static analysis result for SHA-256 33cad4a416044ac7…

MALICIOUS

PDF

74.9 KB Created: 2021-02-11 01:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c76bc210470bab040b9fa68a55629d9 SHA-1: be3cdc903835dd6d3052ab7d09f5757090522b76 SHA-256: 33cad4a416044ac75d649767f82c37dd7b81f5fa9568a09dc4cd10a82a7a8060
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wb?keyword=balance%20sheet%20items%20reconciliation PDF link annotation
    • https://terifurarogo.weebly.com/uploads/1/3/4/3/134317228/66db03c79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491169/normal_60045a9a4c38b.pdfIn PDF document text
    • http://tex-comm.ru/dajitejusarutwn.pdfIn PDF document text
    • https://juxilejaguzu.weebly.com/uploads/1/3/4/4/134404551/b8b0c9.pdfIn PDF document text
    • http://driveformclanemilwaukee.com/dojaragiwilovajusisisixor5to2.pdfIn PDF document text
    • http://pipabineki.22web.org/nike_believe_in_something_meme_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419195/normal_5fc78d333333b.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/Hjigg11/the_girl_next_door_trailer_netflix.pdfIn PDF document text
    • https://minezutoka.weebly.com/uploads/1/3/2/6/132695516/sifezudivemimufule.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530910/normal_60119a58bf5c9.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/jggcAgh/gofololisilumaxorurux.pdfIn PDF document text
    • http://vuzatiriranune.22web.org/mefipu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_601dde5020710.pdfIn PDF document text
    • https://lovevisop.weebly.com/uploads/1/3/1/4/131410094/a16c94.pdfIn PDF document text
    • http://ehaberdevlet.com/653008635165fcm8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nuwumunis.epizy.com/84730615366.pdfIn PDF document text
    • http://radoletoma.epizy.com/bull_shoals_lake_current_fishing_report.pdfIn PDF document text
    • http://tokekiloxak.epizy.com/10117221076.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_off0000e792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE792 5088 bytes
SHA-256: c915416aaa834134df1d6d5b5f71e0dbde2113a100a8dbbda314149eb8c056ba
font_01_sfnt_off0000f8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B0 11036 bytes
SHA-256: c3d6baf6820463113692fd0e99b27481fa26f1a50e8fafdd69e45c0df51febac