Malicious PDF — malware analysis report

Static analysis result for SHA-256 7486fd236f560df2…

MALICIOUS

PDF

71.0 KB Created: 2021-03-22 18:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 81afdcb60b41425fe9caf3466d355249 SHA-1: 48b1f2c688f7f70e654d1a6712b175aab3088d0c SHA-256: 7486fd236f560df2a9261bd7db803013b47f19e817b502112a8fc6e4e455473c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/wix?keyword=pa+motorcycle+inspection+manual PDF link annotation
    • http://ndfnasg.xyz/77241071944eohuh.pdfIn PDF document text
    • http://ridunculus.com/10x10_square_graph_paperp69gm.pdfIn PDF document text
    • http://shtangye.xyz/weather_atlanta_november_2018ok0yl.pdfIn PDF document text
    • http://livecopyrightverification.com/19679044334ycxql.pdfIn PDF document text
    • https://kebetupuj.weebly.com/uploads/1/3/4/7/134733243/9bc47cf379d5d0.pdfIn PDF document text
    • https://vakenufepuxino.weebly.com/uploads/1/3/4/5/134529081/degezabuj.pdfIn PDF document text
    • https://katifakemu.weebly.com/uploads/1/3/1/3/131381151/voxowavuke.pdfIn PDF document text
    • https://jezulusawuse.weebly.com/uploads/1/3/4/0/134000263/7637981.pdfIn PDF document text
    • http://shortsomfj.space/dabudo7wovp.pdfIn PDF document text
    • http://irbestate.ru/international_mailing_address_format2zjno.pdfIn PDF document text
    • http://pedrons.space/nuts_bolts_of_college_writingw801v.pdfIn PDF document text
    • http://spencermcman.us/cfa_level_1_june_2020_topic_weightsa9ino.pdfIn PDF document text
    • https://nagewapebikex.weebly.com/uploads/1/3/4/6/134647925/c4a7454.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/leteraxewe/facebook_ads_reporting_dashboard.pdfIn PDF document text
    • http://delenujafoxa.rf.gd/disability_support_pension_income_and_assets_test.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/dnd_dice_pouch.pdfIn PDF document text
    • http://pepawelifebin.rf.gd/rolidonutoli.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_off0000d676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD676 5184 bytes
SHA-256: 0c3cbd8607979d2e2f8e0d21ae8916c2bc2cdc3593cda31c9f52230338510bfb
font_01_sfnt_off0000e80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80A 11272 bytes
SHA-256: d9ed9d8b18acd26e2f164a53459ea3a1144ed087badf1afc2a56d98d42735143