Malicious PDF — malware analysis report

Static analysis result for SHA-256 960aeff06de18a43…

MALICIOUS

PDF

74.5 KB Created: 2021-01-28 13:07:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 03deb355069c81ab0d9eae94948a92b9 SHA-1: 88467e27d94e753799bedf4af0043e73de053bc5 SHA-256: 960aeff06de18a43da1b0ecde700690b5701ac74f7cf9dbe7f98d8f15cd627b1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://leonvi.ru/wb?keyword=high%20fade%20hairstyles%20black PDF link annotation
    • http://montana-media.com/buy_real_twitter_followers_that_retweetzgwy4.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/igiixUs/world_war_playground_ragdoll_humans.pdfIn PDF document text
    • http://organic100.fun/pikilarazirufunolovboo.pdfIn PDF document text
    • https://lapaluletegole.weebly.com/uploads/1/3/4/6/134679291/1614742.pdfIn PDF document text
    • http://pro-komp-master.website/smash_crash_derby_cars_3o583e.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/jacLwgf/61117059696.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/8ifiehf/aztec_coin_pirates_of_the_caribbean_for_sale.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/totuvusapofesawixakaxwlme.pdfIn PDF document text
    • http://instas.site/worms_3d_ps4qmgx2.pdfIn PDF document text
    • https://cdn.sqhk.co/lilokimoz/fJhht7R/2021_arctic_wolf_287bh_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/HtibhiO/gotefafadovevogupowow.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/digciju/mutopibavogemekeleme.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/tokit/safework_nsw_notifiable_incident_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/manual_chevrolet_optra_limited_2006.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/litazelu.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_off0000e725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE725 5552 bytes
SHA-256: 60a9efb94a3915f37ca2468884b0f8da4f18e5b18575f6736937de63453e6bef
font_01_sfnt_off0000fa0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA0D 10372 bytes
SHA-256: a06a4f65dee983efc4729aef02c089af56ff3063d90f555363e66da27cab6341