Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c8c0995f9413f34…

MALICIOUS

PDF

72.8 KB Created: 2021-03-03 01:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: eaaea3b79ec58396d20567cbff4abd86 SHA-1: 91df2d730dea9e27e81ed1a28e917a0d7d4fad5c SHA-256: 0c8c0995f9413f34c75d4eac141e1b1f632790896f42c29732d41614c5535512
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/wix?keyword=insurance+word+whizzle+answers+geometry PDF link annotation
    • http://sawemawe.mywebcommunity.org/rampage_v_extreme_bios_switch.pdfIn PDF document text
    • http://ryursew.space/do_they_find_percy_jackson_in_the_lost_herogi2uz.pdfIn PDF document text
    • http://btsworld.org/dark_phoenix_123movies547je.pdfIn PDF document text
    • http://gajonedorebuko.mywebcommunity.org/xosemimi.pdfIn PDF document text
    • http://sokolov.fun/buy_something_on_ebay_with_my_paypal_card5uyiq.pdfIn PDF document text
    • https://lovevupadu.weebly.com/uploads/1/3/5/3/135328586/javepe.pdfIn PDF document text
    • http://copyrighthelp.info/completing_the_square_practice_problems_and_answersusb1e.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/putoro.pdfIn PDF document text
    • https://vulabomanuxuw.weebly.com/uploads/1/3/4/8/134857085/bujulupelipekufij.pdfIn PDF document text
    • http://reduslim-shop.website/55313760684n1ik.pdfIn PDF document text
    • https://natugivekoxatan.weebly.com/uploads/1/3/1/3/131380011/tixajo_medalafomin_niladuvixako.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/xakajoziwibi/the_changeling_movie_in_tamil.pdfIn PDF document text
    • http://jalijoruki.atwebpages.com/garmin_2555lmt_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/89101908861.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/spotify_songs_mod.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_off0000e0ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AC 5536 bytes
SHA-256: b2f90a1ed1b3db5ef54562143e3540535f4b1ec64d3140edb5e63ebec7cb54ee
font_01_sfnt_off0000f36f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36F 10124 bytes
SHA-256: 40fa5cda0ad9de6179947f418452fc274b4b1dc6318aebf3b52b15223ecbcfee