Malicious PDF — malware analysis report

Static analysis result for SHA-256 207775b1010873e2…

MALICIOUS

PDF

65.4 KB Created: 2021-02-27 03:43:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2f720851c1425ff13e9af6e229b8d6b4 SHA-1: c5152338af6eb70674a2219f6f470c1d8f7fcef7 SHA-256: 207775b1010873e21fb4c4df04ea03d303b1dd356ac30a8ed07f2028c3bdb78c
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://baarspo.ru/wix?keyword=lesson+11.1+practice+b+geometry+answers PDF link annotation
    • http://de-bewertung-889562.icu/rabamijeseky316t.pdfIn PDF document text
    • http://noksipals.online/badland_3500_winch_installation_instructions7xhlr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377924/normal_5fcdcf0639632.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407331/normal_60075beeb8720.pdfIn PDF document text
    • https://vosutiwurog.weebly.com/uploads/1/3/5/4/135400890/kokebufemufopi_wiboja.pdfIn PDF document text
    • http://hq-cleartv.info/medejelixukifokuvumirezbv5j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464878/normal_5fcdac96eb1f2.pdfIn PDF document text
    • http://prizinsta24.site/46228249386hy3jz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473064/normal_6023eb1a695ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368478/normal_5fef4d29afbad.pdfIn PDF document text
    • http://xoxibusu.iblogger.org/video_ing_sites_using_url.pdfIn PDF document text
    • http://xbet1.fun/8395795406xkurb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://redepulevinevux.epizy.com/fawimitukuroxixigaziwo.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/dari_language_guide_phrases_exam_cbt.pdfIn PDF document text
    • http://kifemulawej.epizy.com/akkurat_pro_bold_free.pdfIn PDF document text
    • http://kirogebi.epizy.com/manipabalogekodivadizilaw.pdfIn PDF document text
    • http://gubogur.rf.gd/suwokopoxunozane.pdfIn PDF document text
    • http://gidubivej.rf.gd/bahadur_songs_kannada.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_off0000c588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC588 5580 bytes
SHA-256: 16af15e1890881072928bcabc0e215fbee996fcb993997b5c3ca3f0566fe8e2b
font_01_sfnt_off0000d88e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD88E 9348 bytes
SHA-256: a694de308f87ff7ba6cdd4648abf855107f692d8732e0bcfdeff6cc57710604e