Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9fe01f6bf809fc7…

MALICIOUS

PDF

79.1 KB Created: 2021-03-04 01:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a8a18ae77544d9a1ef2f8d22efddd62f SHA-1: 33307d516a4c332c09ebe83585b115c1996bb92a SHA-256: a9fe01f6bf809fc713290689e701f7ca7e58da59a814f0d15d50b491c7098239
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://jacksth.ru/wb?keyword=bosch%20300%20series%20ventless%20washer%20and%20dryer PDF link annotation
    • http://konanozopesan.22web.org/niguvifuwogomelojut.pdfIn PDF document text
    • http://galobesunin.22web.org/flowers_in_the_attic_movie_online.pdfIn PDF document text
    • http://takipleskazan.org/nofasoyjyor.pdfIn PDF document text
    • http://im-marceting.site/happy_birthday_flowers_gif1w2m1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374545/normal_603ee8f0508df.pdfIn PDF document text
    • http://fivabigenarewo.22web.org/33329720765.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/pafiganovavi/bengali_movies_2018_free_hd.pdfIn PDF document text
    • http://resifukizuve.rf.gd/bulky_items_sheets_en_espaol.pdfIn PDF document text
    • http://nakulugexogi.rf.gd/engineering_guide_wow_bfa.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/phenol_formaldehyde_resin_properties.pdfIn PDF document text
    • http://kewuzelaxapog.rf.gd/91506514779.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/xugizitipeluvunewazexa.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/scottish_sustainable_growth_commission_report.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/wipadizixobigenoxoberates.pdfIn PDF document text
    • http://jomozaredid.rf.gd/brothers_in_arms_3_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/22914497396.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/joneposefasobolokawogid.pdfIn PDF document text
    • http://zopusawonomiwi.rf.gd/love_and_respect_marriage_dvd.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_off0000f55e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55E 5636 bytes
SHA-256: 1700e51fe5045c1971dac49edc6ff3ec62ef360ddf80809c2ea797ab934f9bbb
font_01_sfnt_off0001089f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1089F 11352 bytes
SHA-256: a3d7bdd00b8af67006dfa4855ed824c4f2ab8b2364b4fc0804db77f7fddb383f