Malicious PDF — malware analysis report

Static analysis result for SHA-256 40072cb48bdddfed…

MALICIOUS

PDF

75.5 KB Created: 2021-02-08 10:50:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 244c7f23c2f2aeb527b92bd059af8c2e SHA-1: 494198cb080364e29907e8a20f77f364e3ca74b0 SHA-256: 40072cb48bdddfedd1313b7b39190090c54c9b224f7ded433f68fa118a6012d2
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/123?utm_term=teamspeak+3.3.4+apk+cracked PDF link annotation
    • https://cdn.sqhk.co/wufevinek/DFgg5dE/45107790755.pdfIn PDF document text
    • https://cdn.sqhk.co/rabovafom/hgdsihQ/2020_election_map_live_updates_fox_news.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/OEhhIjf/stickman_street_fighting_city_blocky_gangsters.pdfIn PDF document text
    • http://siankaanmexico.com/scratch_3._0_tutorialk53wu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450036/normal_5fd99ca0db95f.pdfIn PDF document text
    • http://remontlegko.info/opusdev_forza_horizon_3kmtil.pdfIn PDF document text
    • http://malespw.xyz/50936579080u9b0i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406202/normal_6020d5207e4b3.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvomuvugu/Mhb6Igi/29158402468.pdfIn PDF document text
    • https://pikotawikeju.weebly.com/uploads/1/3/4/4/134496208/luvuxowimavazedeki.pdfIn PDF document text
    • http://psylath.com/pukalem2fqb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://texatopewewew.epizy.com/wotudapalekogu.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/23701858306.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/champions_league_title_song.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/handbell_choir_sheet_music.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_off0000e8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D5 5484 bytes
SHA-256: 8256d9a7c9d60945b918d1a0777f7f09e7be629a8fbe1d2f91e56cae22f05799
font_01_sfnt_off0000fb74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB74 11140 bytes
SHA-256: c7f056fd2398c3535d10290a11a898af426c9d951faea33253df75cf46da8127