Malicious PDF — malware analysis report

Static analysis result for SHA-256 25336074f334429f…

MALICIOUS

PDF

64.3 KB Created: 2021-02-20 20:41:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ba0716119546d6ebff9fe2ccb102947f SHA-1: 9e04176f8670c9f50f7678cd0da40430e3e6136e SHA-256: 25336074f334429f72aed263710c6c9de41be43d0755f7744a397992e678aba9
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://druttle.ru/wix?keyword=bose+awrc-1p+manual PDF link annotation
    • http://dofitodisibo.22web.org/viwerusagapaxok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424996/normal_5fe3c26d448de.pdfIn PDF document text
    • http://topsol.xyz/diastolic_function_echo_guidelines_2016ug0ql.pdfIn PDF document text
    • http://songkfrk.site/how_to_replace_battery_in_harmony_remotexn543.pdfIn PDF document text
    • http://mamontov-net.cc/assetto_corsa_car_setupxgxny.pdfIn PDF document text
    • http://table-wait.com/facture_apporteur_daffairef607n.pdfIn PDF document text
    • http://beststudent.fun/woxojetahoclp.pdfIn PDF document text
    • http://wokulorumal.iblogger.org/appcleaner_pro_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374518/normal_5feb240fbc14c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414678/normal_6017b6f973329.pdfIn PDF document text
    • http://thehensleys.org/xawudaxaradalunasuziwijxz36q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463533/normal_5ff23478f2764.pdfIn PDF document text
    • http://kostlike.site/how_much_is_robert_greene_worth617h8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448744/normal_601ff425d1b7e.pdfIn PDF document text
    • http://dorightschool.com/42647975704ykfd6.pdfIn PDF document text
    • http://sazefakopek.iblogger.org/formlabs_castable_resin_curing.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/fapaga/9482496770.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/wwe_wrestlemania_33_bleacher_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/xurerobuxawabokipej.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/chora_chori_song.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_off0000c07a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC07A 5304 bytes
SHA-256: 215e7586aa0a3a147d0acdb91892bff21e027cda6bcf26dbc8321c8b55f1a376
font_01_sfnt_off0000d290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD290 9900 bytes
SHA-256: 2355a360fd1d8417040ef882513e60ac603a07718799b6c3ae5955c3851cc44c