Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2e0e158fea1029a…

MALICIOUS

PDF

75.3 KB Created: 2021-02-04 00:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7a94ae1e72e6566453ede5a204bcee3e SHA-1: 0a10325d445ef259f1dc5990eda16d0fc82beedf SHA-256: f2e0e158fea1029a0c9c0445bd25437b10cc5a3cf9071147585c1d4e7f7dffb6
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://bologen.ru/wb?keyword=argumentation%20beispiel%20schuluniform PDF link annotation
    • https://cdn.sqhk.co/tubadaluzafu/hI9Ggdr/42705508324.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/cShjIje/57938761969.pdfIn PDF document text
    • https://cdn.sqhk.co/xeveweno/ififhio/classic_chess_books.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448556/normal_5fdd44cf949ae.pdfIn PDF document text
    • https://cdn.sqhk.co/rowojazur/iGigl6K/lukogatezazofape.pdfIn PDF document text
    • http://cheatyou.site/xebobikakpplc.pdfIn PDF document text
    • https://cdn.sqhk.co/gepatunasux/gQO3gdZ/daseduvu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370985/normal_6019932d10c8c.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/jepinebawo/73087179787.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/bottlehead_crack_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/jingle_bells_karaoke_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/biros.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/xubabomudubafonu.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/temoledexosewepavetinule.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/springer_paper_latex_template.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_off0000e61d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61D 5556 bytes
SHA-256: 10d3b77030cec51652c249a2cb5e3fb80e0cf12ab319d4abd15ca57c02b8df1b
font_01_sfnt_off0000f8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D5 11548 bytes
SHA-256: 2b292a6c2343475022f02a7219455c33e1570762f6b025340a1d23a7fc6a9eb2