Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f146c1fa12ce73a…

MALICIOUS

PDF

64.2 KB Created: 2021-02-20 15:19:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 682bdefd9dc46b024b00bc470358af38 SHA-1: dc28c3a6b4ebdce286f02b2015deeef3390c470a SHA-256: 9f146c1fa12ce73aad1dead1b3e55424dc1d42f8eabcf2dbd6e3c5741789b16d
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wix?keyword=my+future+family+pictures PDF link annotation
    • https://cdn.sqhk.co/mugejufunij/hajdIhh/47383507060.pdfIn PDF document text
    • https://cdn.sqhk.co/pabefidinaz/wphehe0/cfosspeed_11._04_full.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453337/normal_5fdc5d37c4662.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489057/normal_601f26bf41519.pdfIn PDF document text
    • http://sexugaweguko.iblogger.org/google_calendar_spam_android.pdfIn PDF document text
    • https://cdn.sqhk.co/ludukuni/djhpxv2/41223230623.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/gfhfgj4/45180308735.pdfIn PDF document text
    • https://cdn.sqhk.co/totuzilexif/hfhakie/gotidugamofetedejozot.pdfIn PDF document text
    • https://cdn.sqhk.co/ninivaxibab/y4jjhhE/88771214634.pdfIn PDF document text
    • https://cdn.sqhk.co/wexifidobafo/kEeeBje/67134461420.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/sajatesawodiji/sazid.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/jixug.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/whirlpool_wsf26c3exw01_parts_manual.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_off0000c151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC151 5268 bytes
SHA-256: 7aca8c828df028d2df5af219e2f312cb9c6d63fde25a757b5fd49ee72fa24d60
font_01_sfnt_off0000d337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD337 9584 bytes
SHA-256: f0648f484024951dcfeb9540e0f6735353139e7e33ea2740f4dab5604daf1545