Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f9053f7f0259ab5…

MALICIOUS

PDF

71.5 KB Created: 2021-02-12 01:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2dfbbab5e649f2dc4eff0c7b4f9d7f57 SHA-1: 4a94652723df1b2ea9a23c4f71de5bc6fb00b3ba SHA-256: 5f9053f7f0259ab5929040ddcabf44990be0ad8532bd8750df671b957b8ec513
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://seumenha.ru/wix?keyword=fire+emblem+fates+pairing+randomizer PDF link annotation
    • http://devgm.design/moxigesokitodutabilobolzo00g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468289/normal_601f8287c3332.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414695/normal_5fe387fe99726.pdfIn PDF document text
    • http://slmit.fun/robot_framework_android_automationo9bk4.pdfIn PDF document text
    • http://infokurs.design/52388293371dp2b2.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/ijjagcN/archipelago_landform_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/Qgcjeie/balls_barber_shop_brooklyn_ny.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461525/normal_5fca3a69d961c.pdfIn PDF document text
    • https://cdn.sqhk.co/salefudodid/gjfjjif/33622687278.pdfIn PDF document text
    • https://cdn.sqhk.co/kopenanum/wJujbhe/fulivebulugedudum.pdfIn PDF document text
    • http://jutereli.iblogger.org/famij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487382/normal_5ff9bf7bd407a.pdfIn PDF document text
    • http://tb-films.ru/pocket_informant_syncd6aum.pdfIn PDF document text
    • http://drive4mclaneaustell.com/tixenativekimih2q5u.pdfIn PDF document text
    • http://legalvictory.group/59303398444g3fal.pdfIn PDF document text
    • https://cdn.sqhk.co/novitovikor/dgjRege/super_loud_ringtones_app.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jorunodup.rf.gd/37978531343.pdfIn PDF document text
    • http://duvaneloxa.epizy.com/jakupexugirelurojamuwuzu.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_off0000db5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5E 5504 bytes
SHA-256: 4a7228abd16ef22ef582aebe5257e1933d397eced07a3282e4afc4e768d08518
font_01_sfnt_off0000ee01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE01 10212 bytes
SHA-256: 705015f0c817b21f27cb2c99f97d6f4d7d985881f37968540cbb977905e89405