Malicious PDF — malware analysis report

Static analysis result for SHA-256 251d4783d712cb30…

MALICIOUS

PDF

71.4 KB Created: 2021-02-06 23:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f8ca76b98e50aa8b6ad45b3c1f0598f0 SHA-1: 9e5da064ea9bc25f5f9adc4abd6498803fef246b SHA-256: 251d4783d712cb30145d5a7343433a9bc53eb242a212ec87b202722c980931a9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=wrong%20turn%20all%20movie%20list PDF link annotation
    • https://xazonidunigi.weebly.com/uploads/1/3/4/5/134590253/wetimiref.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/rovegimoma-rixavam-ferivanenat-xikusimaxuxexis.pdfIn PDF document text
    • https://penogefuf.weebly.com/uploads/1/3/2/7/132740618/netulezaba_judimikoxewigur.pdfIn PDF document text
    • https://tiwudusakuwizir.weebly.com/uploads/1/3/1/6/131637104/paferugubuti-novigegid-razilutar.pdfIn PDF document text
    • https://cdn.sqhk.co/widafopaj/58BLjcu/song_hits_2020_punjabi.pdfIn PDF document text
    • https://pugixodazujok.weebly.com/uploads/1/3/2/7/132710779/4141147.pdfIn PDF document text
    • https://ditoleruv.weebly.com/uploads/1/3/5/3/135345680/xinugale.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/6a281f797e.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/gofilafixu/indian_promissory_note.pdfIn PDF document text
    • http://zufejudo.epizy.com/74548611348.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/website_template_code_free.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/56496283154.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/les_fleurs_du_mal_english.pdfIn PDF document text
    • http://rufofexejojar.epizy.com/christmas_song_for_kid_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/ranuwob.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_off0000dd4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4C 5076 bytes
SHA-256: 7c57ac105404e589c6a70201941a90a3ba5a839f1759877cbb9dd6db305c281a
font_01_sfnt_off0000ee8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8E 10244 bytes
SHA-256: 4bfb3efe5532ecc50305dd849cf58f8c0712be7b80708baf6aca25972c739ed8