Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ff4b54bce2ab3e…

MALICIOUS

PDF

72.0 KB Created: 2021-03-07 15:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e8aa2d662dcc823dda1e03c4d8d84e85 SHA-1: 75cc34c31b899402e74374eb4d14b0dbaa1f2c8f SHA-256: 92ff4b54bce2ab3edc1512da4e91b01c47565ec26857eb386d56f25811a8a132
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=kindle+d01100+battery+price PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418778/normal_602256d42ae15.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/fivejirutilazabidiwunel.pdfIn PDF document text
    • http://kamefutebiwef.mywebcommunity.org/68306133748.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473415/normal_60125cf57b609.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459464/normal_6044d2ed2fd01.pdfIn PDF document text
    • http://vurovolapoza.mygamesonline.org/ledurirum.pdfIn PDF document text
    • http://prizinsta365.online/what_are_good_7th_grade_science_fair_projects7qwpn.pdfIn PDF document text
    • http://xefopuro.mypressonline.com/80448177023.pdfIn PDF document text
    • http://fb-ig-violation.com/wofilafavalixue1xq.pdfIn PDF document text
    • http://bcpzon4segurabetaviabcp.com/how_to_help_a_cat_that_has_anxietyh4wh7.pdfIn PDF document text
    • http://rmk4sale.xyz/ranexixofisisajitelerhirwz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417314/normal_60023dd845b3b.pdfIn PDF document text
    • http://megidexabaror.mywebcommunity.org/what_is_the_boiling_point_of_ethanol_at_standard_pressure.pdfIn PDF document text
    • http://aslixan.com/liladu8y2em.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/179c5864-d49f-4b4e-a789-a0749d98bfd0/mackie_1604_vlz_pro_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35468528-6469-43d7-8ce1-d6155a8a6756/lopafiginuzojobexazuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/kimone/menovupagipepusu.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/kavobizi.pdfIn PDF document text
    • http://rizivubonulej.atwebpages.com/why_is_my_acer_chromebook_not_charging.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/judetiwagizomiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc25c9b0-36c9-4553-b964-6e7592dfc366/how_to_replace_life_fitness_treadmill_belt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/305bcdf2-0df6-4064-bd8d-1c9aa10172b2/how_to_get_audible_driving_directions_on_google_maps.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_off0000de8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8B 5296 bytes
SHA-256: 649f732ba8503ee8d6cb635361837ed5d0fb50aa2c994215747d7e20509c1a38
font_01_sfnt_off0000f0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A8 10008 bytes
SHA-256: c8295240d69fdddfe8f215998955994e0d7faf57c3198890941cf1aaa1053fea

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