Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f388b2fc7e0fe5…

MALICIOUS

PDF

74.6 KB Created: 2021-02-11 08:05:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ba632613cffa359c9c2c71852c50fbfc SHA-1: b4ece332240b28367a734265fa3e6e648ee6c1c5 SHA-256: e8f388b2fc7e0fe59aac51a58f5d96a916361d04edb1749a3e4b7643721b54cf
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/123?utm_term=michigan+edible+plants PDF link annotation
    • http://emmetrix.net/amoeba_sisters_enzymes_answersrfa1z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367013/normal_5fe3e598ece82.pdfIn PDF document text
    • http://tumbaa.space/car_crash_simulator_game_for_pc_free_download0ix0o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383806/normal_601136150ef17.pdfIn PDF document text
    • http://chemistryplus.space/prototype_testingjegtr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387433/normal_6024af5e24acf.pdfIn PDF document text
    • http://marketeuro.pro/resisting_happiness_matthew_kellycy5mp.pdfIn PDF document text
    • http://legendbilisim.com/689234822162vbd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_60246425a0d46.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380086/normal_5fe4271b00c17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419218/normal_5fe70cedb01bb.pdfIn PDF document text
    • http://raisinsapp.pro/society_annual_return_form_alberta_31851tkwm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/66556160742.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/b._ed_form_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/teorias_juridicas_antiformalistas.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_off0000e72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72E 5384 bytes
SHA-256: 0ce57325528ad00f2bf63d870e31a9b0b1dadf2b43c2c1c8f61b37dd91346707
font_01_sfnt_off0000f97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97E 10604 bytes
SHA-256: 38812cf0d32a0bb23a2c0d0155464ed3c80d80eacd45a37f6e92418126a5b005