Malicious PDF — malware analysis report

Static analysis result for SHA-256 70de3f4effc4869e…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 15:25:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b48a1efcc3c46188e04a2f5774ad63d7 SHA-1: 5759433dee320c10db686292d88c47256f78e64c SHA-256: 70de3f4effc4869e43b52fdc29dab7974d70870d7c9501c1282f76e7ae8d10f4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://midufefew.ru/award?keyword=hoover+windtunnel+3+belt+change PDF link annotation
    • https://tupivoxutod.weebly.com/uploads/1/3/4/4/134467409/fajenekaf-vojab.pdfIn PDF document text
    • https://ruzamugube.weebly.com/uploads/1/3/4/0/134040566/nelafawagosimawa.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/kNgggVF/96261813155.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/honda_rebel_300_price_in_india_launch_date.pdfIn PDF document text
    • https://cdn.sqhk.co/xoradofexul/gK8jjDp/teddi_mellencamp_husband_child.pdfIn PDF document text
    • https://ginubeputugexow.weebly.com/uploads/1/3/0/7/130738710/pelaxobakajomazamav.pdfIn PDF document text
    • https://cdn.sqhk.co/ralapogifur/ddggLgh/weed_killer_for_grass.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/XjgbRic/fall_guy_truck.pdfIn PDF document text
    • https://bilimetib.weebly.com/uploads/1/3/4/4/134435282/vasera.pdfIn PDF document text
    • https://gidafefutor.weebly.com/uploads/1/3/4/0/134040883/3960137.pdfIn PDF document text
    • https://cdn.sqhk.co/tavikagisato/cqhfib0/weapon_builder_simulator_free_mod_apk.pdfIn PDF document text
    • https://latavulepa.weebly.com/uploads/1/3/4/4/134461708/juxuw.pdfIn PDF document text
    • https://cdn.sqhk.co/ziriziwebu/ghejhgv/1393522038.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/acca_sbr_march_2021_exam_dates.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/32154841251.pdfIn PDF document text
    • https://cdn.sqhk.co/doxelatofon/dibWjbc/brain_out_level_183_fill_the_glass.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wonanikapudidak.atwebpages.com/pejitefuropafudi.pdfIn PDF document text
    • http://davobob.rf.gd/10528682335.pdfIn PDF document text
    • http://tujotabupogi.rf.gd/motorola_talkabout_t460_manual.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/58745703656.pdfIn PDF document text
    • http://terezeso.epizy.com/67586999767.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_off0000dfe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE2 5440 bytes
SHA-256: c165a7693dae27da167da54e6deef0bacb79cb95f8fcca2498a9c299ac8fcfdf
font_01_sfnt_off0000f26d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26D 10028 bytes
SHA-256: 98e4560ad02d78c5badd81b9658814f492b0c3377eb9fa812a76088ac2d7ff91

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