Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ae5c4208137660…

MALICIOUS

PDF

69.2 KB Created: 2021-02-07 07:58:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2310ae0a2ca30cbf52ad88ca722fe237 SHA-1: a486c1ad685171d781d0a7bad6dd9b3adf8ed6a3 SHA-256: 93ae5c4208137660f3c428639e2de1567e369b37fab19b497333adaf6096722a
166 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
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://leonvi.ru/wb?keyword=cinema%20hd%20alternative%20android.
  • 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://leonvi.ru/wb?keyword=cinema%20hd%20alternative%20android PDF link annotation
    • http://nefesuru.iblogger.org/addictive_keys_studio_grand_free.pdfIn PDF document text
    • http://kompledom.com/rival_crock_pot_scvc600_manualrd5et.pdfIn PDF document text
    • https://cdn.sqhk.co/sofaxuleruri/cghbgfe/blocksatz_mit_silbentrennung_word_2016.pdfIn PDF document text
    • http://wersita.space/74226582191mkea.pdfIn PDF document text
    • http://anyita.space/76083265772k5e03.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/whifBid/tiktok_banned_in_america_date.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/white_coat_investor_downloadpfrey.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/3C1gc0j/dubawumun.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/g4zrhbJ/38686652689.pdfIn PDF document text
    • https://cdn.sqhk.co/jagojixego/d7DCvjc/parent_portal_powerschool_app.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/cHD0ghz/26202925675.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393181/normal_5fdde374627e2.pdfIn PDF document text
    • http://istra-backwater.ru/vivisibovusajruqzh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mulexotuvatago.epizy.com/best_live_stream_sports_app_for_android.pdfIn PDF document text
    • http://lajuloverebob.epizy.com/vugulul.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_off0000d321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD321 4852 bytes
SHA-256: 1a793a428a226a999392f97f06e22d9be81403827d6da863bfb504c92e918bb5
font_01_sfnt_off0000e36f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE36F 10844 bytes
SHA-256: ce660340503b0cf5dd88e61502939161cb1c9cd407bc08d9ae9e5cf87f07d9d0