Malicious PDF — malware analysis report

Static analysis result for SHA-256 55476c18a3190980…

MALICIOUS

PDF

63.5 KB Created: 2021-02-14 02:29:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1b96f222b2b83e5a5985e94afa6bc1b0 SHA-1: 97317bc8fca35f378f2f07564a39d383afa7ee07 SHA-256: 55476c18a3190980e54c3748df0b6f31166c08396a03e5d88d549ba46b853fd3
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://seumenha.ru/wix?keyword=brother+lx+3125+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383450/normal_5ff41eefcb61f.pdfIn PDF document text
    • http://zalavsky.ru/man_of_the_house_cheatiooqx.pdfIn PDF document text
    • https://cdn.sqhk.co/jekidase/dieHfhc/negeliwifulax.pdfIn PDF document text
    • http://coolvdomaion.online/nikipomajbwhes.pdfIn PDF document text
    • http://rm-swis-mine.com/78067580252an9ob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478141/normal_5fed4920067a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481424/normal_6013bc72f0eb1.pdfIn PDF document text
    • http://blognews.top/ragnarok_mobile_priest_guidejpu4y.pdfIn PDF document text
    • http://axecheat1.xyz/tangled_songs_disneyr2zyd.pdfIn PDF document text
    • http://olx-delivery.cc/25584463739b5f2u.pdfIn PDF document text
    • https://cdn.sqhk.co/zanuduwedimu/iibqjac/dixie_d_amelio_song_lyrics_deutsch.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428033/normal_60218cc58decf.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/jezobasit/free_ppt_timeline_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/83980923041.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/xenilononafi.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_off0000bdb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB8 5336 bytes
SHA-256: 65fcc2c9a2dd2945493529d2ca4d26aabac70930c8da0122463792625bd1d389
font_01_sfnt_off0000cfbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBE 9948 bytes
SHA-256: f76082148ea87f10c702a51ce50cea94329fd61071007fbd1d5e9b8d1c9bf63c