Malicious PDF — malware analysis report

Static analysis result for SHA-256 c293169b5a8564b2…

MALICIOUS

PDF

68.9 KB Created: 2021-02-26 05:04:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ea50adc0f0ff8d9da2bb38ff3a16f22c SHA-1: 446c95e4fd25ab1eb43330ed0a55abc3e87e29c5 SHA-256: c293169b5a8564b298612ce7abb563f68d2a880dd017c0f4c57a70d11716d7ca
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/award?keyword=circular+and+satellite+motion+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407313/normal_5fe7a0255b88d.pdfIn PDF document text
    • http://normal-id.com/515127784311swlz.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/nuclear_chemistry_half_life_problems_worksheet_answer_key.pdfIn PDF document text
    • http://reduslim-italia.website/whatsapp_status_long_video927us.pdfIn PDF document text
    • http://tcerkovniekupola.space/gupuwaottig.pdfIn PDF document text
    • http://copyright-central-media.com/2011_camaro_repair_manuallznbj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376875/normal_602ee4f89cb95.pdfIn PDF document text
    • http://price-list.moscow/jump_on_it_fresh_princexocde.pdfIn PDF document text
    • http://raifaisentgo.online/66856405992xxxen.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/guviw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480750/normal_6006e7b3818a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445128/normal_600e43a8d9a9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413707/normal_5ff3c3c4073f1.pdfIn PDF document text
    • http://getsalle.xyz/52417893983fsxw2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nejesezape.myartsonline.com/3582252477.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/telugu_movies_free_sites_high_quality.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/26955791478.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_off0000d308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD308 5080 bytes
SHA-256: 7ad882550d6f547dc65ba44af517a2711319a8aeeb1bcff984341406834c1e38
font_01_sfnt_off0000e441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE441 10056 bytes
SHA-256: 40d300916b17ad741fdb7d15c0c271dc2f4bcd0ec7b23375c8f5ffc088883479