Malicious PDF — malware analysis report

Static analysis result for SHA-256 d555fd330ebe6c56…

MALICIOUS

PDF

68.6 KB Created: 2021-03-03 08:37:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3f02bf61ee9bfe7c37e49a7465f33c32 SHA-1: 320a480073d62f54c98487aab80348834ef29fcf SHA-256: d555fd330ebe6c56a8e91cbfd7531bb0a30f474b647709270a8d4df17e0a817e
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://golowaki.ru/wix?keyword=xbox+360+s+console+1439+manual PDF link annotation
    • http://leledup.mypressonline.com/carreras_universidad_del_valle_buga.pdfIn PDF document text
    • https://bewotababuruga.weebly.com/uploads/1/3/1/1/131163836/05ea6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417653/normal_5fd3c9a7da626.pdfIn PDF document text
    • https://pujowelitolav.weebly.com/uploads/1/3/1/4/131438356/7015968.pdfIn PDF document text
    • http://govuled.mywebcommunity.org/hp_deskjet_3054a_printer.pdfIn PDF document text
    • http://bewizasosu.sportsontheweb.net/sasefenapis.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/gudasurewepometakazaxep.pdfIn PDF document text
    • https://gawuwusirijer.weebly.com/uploads/1/3/4/1/134108670/tesiluto_supufemesofegef.pdfIn PDF document text
    • http://xagigusutop.iblogger.org/cheat_sheet_for_review_of_systems.pdfIn PDF document text
    • https://bununijadepijag.weebly.com/uploads/1/3/5/2/135298825/luzijagokikerixerawo.pdfIn PDF document text
    • https://moliveje.weebly.com/uploads/1/3/5/3/135323163/3531824.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/wazagidonux/sportmediaset_formazione_live.pdfIn PDF document text
    • http://xuperag.epizy.com/arabic_audio_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/how_to_reset_nextbook_tablet_password.pdfIn PDF document text
    • http://fanalejowegop.atwebpages.com/74965547149.pdfIn PDF document text
    • http://jamurujitexezi.epizy.com/59852139782.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/61991326071.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/71709383112.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_off0000cf82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF82 5788 bytes
SHA-256: bc9e84ea49dba6c91415be80c5958d28c7a0d2e9924faf0159249c745e4e9fd2
font_01_sfnt_off0000e329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE329 9888 bytes
SHA-256: 1113c7535368f76d7d51b1c4cc8fd986dbf456543abfd093784205f7f88474cc