Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fda932d2e77964…

MALICIOUS

PDF

68.1 KB Created: 2021-02-21 22:20:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b8c9f12e4208d3ab35e579d9d8f3e24c SHA-1: 84e9875acf48431df603535da5508f8114a1e6cb SHA-256: e8fda932d2e779648510241398cfaaaed18c5ac98a81a3d8c37ad1757eb40d4e
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=nc+science+standards+3rd+grade PDF link annotation
    • https://cdn.sqhk.co/jimumakevaji/jhNbmjb/turn_off_find_my_phone_iphone_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460251/normal_5ff19b4d524ad.pdfIn PDF document text
    • https://cdn.sqhk.co/pusuvizodez/rNS9gcU/jovaxesef.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/dfTgchb/krk_audio_tools_app.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/jLDLUhI/zagalegigaxom.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/7u29r58/star_wars_squadrons_release_date_oculus_quest.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386076/normal_5fde03fe7f1a1.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/aJOoicY/dilerikarelilelup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471081/normal_601d1aa91e096.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/chdhfcF/78950619185.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477408/normal_5fc6513ff1064.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/tikofaketonub/rafun.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/17216240234.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/gadamot.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/vekib.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_off0000cf4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4F 5208 bytes
SHA-256: d9484d6cc4315133797a0cef76b90a73363ed352f78ee2a4b625db16f9f22f92
font_01_sfnt_off0000e11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11B 10020 bytes
SHA-256: afbe4c2817bc2146025c15cdb45ccb3766d793755a55dc7b35b0a97f9727e38f