Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccbf9c6d964100dc…

MALICIOUS

PDF

71.5 KB Created: 2021-03-03 18:27:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5f7c01c538650a99f942c6eaa3668075 SHA-1: 0fe231284e7aed22b8a5ea07b18dd38901f5de62 SHA-256: ccbf9c6d964100dcd617a8bb7fe7351e9a8300fb7dbf5018acb318abefbfc2c2
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://pelibifir.ru/award?keyword=el+pollo+loco+chicken+avocado+burrito+calories PDF link annotation
    • http://potuxoposutu.medianewsonline.com/how_good_are_dixie_chopper_mowers.pdfIn PDF document text
    • http://lebuvowune.getenjoyment.net/paluratojakeziruwalukak.pdfIn PDF document text
    • http://kugetogegus.iblogger.org/phalogenics_exercises_free_download.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/23666495248.pdfIn PDF document text
    • http://gexomafe.mypressonline.com/dirt_devil_featherlite_canister_vacuum_reviews.pdfIn PDF document text
    • http://zexaribamemavi.sportsontheweb.net/fearless_youtuber_soundboard.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460045/normal_5fd1c0a73d835.pdfIn PDF document text
    • https://cdn.sqhk.co/sikibeve/Yzc1BxM/weed_apps_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373502/normal_602cb571711b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413239/normal_5fe6be7c343cf.pdfIn PDF document text
    • http://mogimetekojubar.scienceontheweb.net/is_the_book_prisoner_b-3087_fiction.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/MFpSoih/escape_alcatraz_metal_detector.pdfIn PDF document text
    • https://cdn.sqhk.co/ledirevobep/d7yEQkE/vidibudivita.pdfIn PDF document text
    • https://cdn.sqhk.co/kamepixuxuk/eEibiYk/34658877701.pdfIn PDF document text
    • http://rajajime.mypressonline.com/gozonobosanife.pdfIn PDF document text
    • http://nerixobetevo.iblogger.org/xukabun.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/7327165774.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wivonubezur.epizy.com/sajenovusuga.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_off0000d998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD998 5380 bytes
SHA-256: e490043d1642ff5c1cf26c58fd7f02d2e10cdb1cf50633f713e354cc0be6ee1d
font_01_sfnt_off0000ebda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBDA 10820 bytes
SHA-256: 651a89de337f65debf290788b2377fddbe1a59e284296dd9f5a3b1143a909654