Malicious PDF — malware analysis report

Static analysis result for SHA-256 a72168d74c293d8f…

MALICIOUS

PDF

72.3 KB Created: 2021-01-28 01:38:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 48bcdc62f1772aaeae5af509b9135f27 SHA-1: 29574231dd1f2030a2c3cf6db882ed919b8d140d SHA-256: a72168d74c293d8fd39b45db651a36e26629e1153e077c1c3f868a24afe8010e
104 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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://jottigo.ru/aws?utm_term=free++audacity+for+win+7 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481828/normal_5ffb5816ab184.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414339/normal_5fe45fa43eeb7.pdfIn PDF document text
    • http://italywom.space/horror_monster_simulatorz4zcs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370278/normal_5fc8e84dd58e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413375/normal_5fc755b6db45d.pdfIn PDF document text
    • http://cyberghost.store/dagosuzo6iy7i.pdfIn PDF document text
    • https://cdn.sqhk.co/makafabakuna/hbjbokI/idle_oil_tycoon_apk_android_oyun_club.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425507/normal_5fe82cf130592.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/dgfjj9o/best_friends_romance_books_read_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406782/normal_5ff50ef31c81d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491936/normal_5fdba96db8162.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/jbrb6On/xotitasinubovixobipo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372960/normal_6010f37af0e9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476122/normal_5fe82fae5227b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420244/normal_6008a87b4e397.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_off0000dbdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDB 5036 bytes
SHA-256: 9e73cc9510635df50464e21f4b904ab40dcae80e72caee735c995f9ecba32df1
font_01_sfnt_off0000ed2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2F 11908 bytes
SHA-256: 7583421bde13190a13358f51fcf1e64fdcf844834cf84054087824cf0915d93c

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