Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ba9129e51597d01…

MALICIOUS

PDF

69.0 KB Created: 2021-01-23 18:15:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8267243f8e96f6edd503a4b2e8f5c939 SHA-1: 7508ee1a20eb0501cf0e88906a857cbe3bc28e53 SHA-256: 3ba9129e51597d011023060084ebe59931b1763fb054dfa19b274f20893406a4
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C%20shark%20simulator%202019%20apk PDF link annotation
    • https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/dc4eecfc.pdfIn PDF document text
    • https://site-1178749.mozfiles.com/files/1178749/vazogonug.pdfIn PDF document text
    • https://site-1172173.mozfiles.com/files/1172173/2268975256.pdfIn PDF document text
    • https://jafoxoxuxovawe.weebly.com/uploads/1/3/0/8/130813536/fobokobafefujirufa.pdfIn PDF document text
    • https://wusitezuredov.weebly.com/uploads/1/3/5/3/135314125/1851763.pdfIn PDF document text
    • https://femodamokej.weebly.com/uploads/1/3/4/5/134529999/5400932.pdfIn PDF document text
    • https://site-1183169.mozfiles.com/files/1183169/37483531530.pdfIn PDF document text
    • https://site-1204117.mozfiles.com/files/1204117/accuracy_and_precision_worksheet_answers_key.pdfIn PDF document text
    • https://fomoxejuj.weebly.com/uploads/1/3/4/0/134000143/5664696.pdfIn PDF document text
    • https://zonulufeviwupaz.weebly.com/uploads/1/3/2/8/132814448/dawejemositu.pdfIn PDF document text
    • https://cdn.sqhk.co/miropefaneka/viajfjh/cute_cat_hd_wallpaper_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/HA3hb3F/zenuwelokubuzazerefogaw.pdfIn PDF document text
    • https://sevezumu.weebly.com/uploads/1/3/2/7/132710575/magomezutovuw.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/voropa/qasidah_burdah_full.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/wizirabojojamajaf.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/anexar_latex.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/tizamujamoxixojaf.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/cabinet_vision_9_free.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_off0000c1be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BE 6144 bytes
SHA-256: 31cbf45467cf38ee523c9c0915804e7cd67517a04505b8a52c67f2636f93528c
font_01_sfnt_off0000d597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD597 15960 bytes
SHA-256: e8f4306a18b28e56f557389346a553de41a18b3a602835b8bec5f4820cd39338

Open this report in the interactive analyzer, or submit your own file for analysis.