Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d78d3af136a9699…

MALICIOUS

PDF

66.1 KB Created: 2021-02-23 19:28:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e6a458b175c89f86004093fc6782d867 SHA-1: 09d6ad848d90a5b7a44991ea4b91f0ec9de3336e SHA-256: 9d78d3af136a96992639a243a7c35672b94c7850b8f667b8a56cba0827545e38
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://jacksth.ru/wix?keyword=star+wars+rebels+devaronian PDF link annotation
    • http://obzorov.site/84894901864xshtn.pdfIn PDF document text
    • http://regvoolkim.website/10365055547c2btf.pdfIn PDF document text
    • https://bamufikike.weebly.com/uploads/1/3/1/6/131606241/c28a857f6f3d02.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/Mjbyf5u/gavizuzezigibidereges.pdfIn PDF document text
    • http://vienvozvrat.site/76455542671d4lfz.pdfIn PDF document text
    • https://cdn.sqhk.co/digubamot/fIihia9/57377862563.pdfIn PDF document text
    • http://itasda.online/american_speak_outdeaa4.pdfIn PDF document text
    • http://muslims.net/zogidelajpxun.pdfIn PDF document text
    • https://cdn.sqhk.co/tesosunimew/cxhajjM/liresorasirizixijesunuk.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/waxukuje.pdfIn PDF document text
    • http://vitalia-transports.com/arp_guard_wifi_security_apke854q.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/gcha4ge/unity_2d_cannon.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/dhieja4/julubomufiwepukosumeta.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/muxegeza/4609231244.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/gedilokagexirekurusib.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/arbor_day_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/ribexitikoxalavijikegu.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/vidmate_pro_apk_for_android.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_off0000c793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC793 5216 bytes
SHA-256: 97ded578ec4db30f036836e7588f2c3ca4f8ea6a05987969a4c95d0d7bc8cd84
font_01_sfnt_off0000d96e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96E 9952 bytes
SHA-256: 2f7b05fde20fe034691e4452a8f9d2690872c8827b5d7ac0bffeaceba3330f29