Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d7a3ccb147253f…

MALICIOUS

PDF

68.5 KB Created: 2021-03-05 00:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b186bc54bb92fec5d00c6095ee51919b SHA-1: 0ff174f1e88be6bbfa0f314c1a0d32d5dfc95866 SHA-256: c4d7a3ccb147253f855a29d90ae4090e421979f8ce0171f3b787af60827c0e42
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://soxebez.ru/wix?keyword=memorial+school+bedford+nh+website PDF link annotation
    • https://cdn.sqhk.co/nogorodizet/jjd8ZZf/29367656283.pdfIn PDF document text
    • http://jarewitof.mypressonline.com/ham_egg_and_cheese_sandwich_dunkin_donuts_calories.pdfIn PDF document text
    • http://bozigojinodebux.iblogger.org/maniga.pdfIn PDF document text
    • https://roxuvipiga.weebly.com/uploads/1/3/4/6/134637137/wenezoneku.pdfIn PDF document text
    • https://senorori.weebly.com/uploads/1/3/4/6/134641151/be67bf.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/fenomenologia_del_espiritu_gredos.pdfIn PDF document text
    • https://cdn.sqhk.co/lagusive/hnibNgK/movie_music_ringtone_download_2018.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/504c889b-e6c3-443a-af81-9ea24311e807/deleloxofuzotawumofafoxov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ca52d82-29a7-4046-97c9-5cb89b29de62/hornady_223_75_gr_amax_load_data.pdfIn PDF document text
    • http://betiravel.epizy.com/como_montar_transformers_bumblebee_fusca.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/balejawikuvafejub.pdfIn PDF document text
    • http://pugatexekar.rf.gd/98939832514.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/golamewarimojawafubumuwu.pdfIn PDF document text
    • http://jatoxat.atwebpages.com/sutolixiduxenuriduxag.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/47609042148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd5fe376-3f86-4a9e-a73a-71535cfa189a/71343808650.pdfIn PDF document text
    • http://junedujivoxoz.epizy.com/9717683825.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/14204459168.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/surevosekefol.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_off0000cf8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF8B 5496 bytes
SHA-256: dddd5108d1fc97bfdd272e2fa3f974d32480dc59a85a6110ae03c37a8570fac0
font_01_sfnt_off0000e223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE223 10156 bytes
SHA-256: 5bc770ed8d46d371511beb6c3333ba7b4dde400a1be0f6b821445aa1d9285c5e