Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be05139f042c4e1…

MALICIOUS

PDF

69.2 KB Created: 2021-02-16 19:56:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 71743076f2bc23ccc0822f396d4a1017 SHA-1: 02d35b55939d9d71abf1bfea05ca694ba98c6e5a SHA-256: 4be05139f042c4e16f5e98287ba017f1fde6baf7587acc3731e6de7fac261d7e
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/shook?utm_term=concha+ice+cream+sandwich+near+me PDF link annotation
    • https://jewakazakiven.weebly.com/uploads/1/3/1/4/131437085/1857f872e43c.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/piehhVV/siren_head_horror_video.pdfIn PDF document text
    • https://losasogewago.weebly.com/uploads/1/3/1/4/131437886/70bf06295d24.pdfIn PDF document text
    • https://wegedojilo.weebly.com/uploads/1/3/1/3/131398291/6198bc4873c0f.pdfIn PDF document text
    • http://laura-egorova.ru/pobozedamobadusijamitawokrcdp1.pdfIn PDF document text
    • https://moxeguzivega.weebly.com/uploads/1/3/5/9/135965209/rimodev.pdfIn PDF document text
    • https://fuxakenaz.weebly.com/uploads/1/3/4/5/134589300/karajowibulivajojune.pdfIn PDF document text
    • http://smeshnoykir.space/outbreak_perfected_destiny_2_wikio7ald.pdfIn PDF document text
    • https://gavititexufo.weebly.com/uploads/1/3/3/9/133997787/fudawusifo.pdfIn PDF document text
    • https://sidanarud.weebly.com/uploads/1/3/0/9/130969336/sodokibimun.pdfIn PDF document text
    • https://jetapixivokob.weebly.com/uploads/1/3/4/7/134726526/0f4533a1dd87469.pdfIn PDF document text
    • http://romeoplanet.club/fafisijoju7yy7g.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/VmGtsq2/subway_train_runner_2019.pdfIn PDF document text
    • https://wenudujajavu.weebly.com/uploads/1/3/5/3/135318124/7689650.pdfIn PDF document text
    • http://samelike.site/audio_cutting_software_freezkm3i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD242 5144 bytes
SHA-256: f2624d6d0c30fe73f02878219366567e0fde69d0b6a17ad69d0e1dd43b4b1bcc
font_01_sfnt_off0000e39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39E 10628 bytes
SHA-256: 89e0e762865521bbc240731fbb94a2bdf24390d7fba38d250ed398959d811dd1