Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fcb0c8fe7ccf0d…

MALICIOUS

PDF

68.9 KB Created: 2021-03-03 15:08:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cf8873e8414fadeb3b9b7602adbb8035 SHA-1: 8afd71ceb44329c6e0f7ef30a204b60e1e120896 SHA-256: 26fcb0c8fe7ccf0d5a1258171f8840d1730cc82b0c2f9d35fff947305f00a3be
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://dugedepap.ru/award?keyword=trane+xr13+model+2ttr3030a1000aa+manual PDF link annotation
    • https://cdn.sqhk.co/jivobukafon/SjgUii5/ifttt_filter_code_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/jfajhhe/burgerology_patchogue_drink_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/jfgiehh/72239146024.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/hbjgid2/xusitamowumotuxoje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391649/normal_5ff4b6c1d29bf.pdfIn PDF document text
    • https://muluxadi.weebly.com/uploads/1/3/1/4/131453645/wiludikafe.pdfIn PDF document text
    • https://naxosetoj.weebly.com/uploads/1/3/0/7/130775404/rezudaparigupotuwi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421778/normal_60183e915d11f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377115/normal_60357d42f1ead.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/3Cjbjie/samsung_pay_apk_xda.pdfIn PDF document text
    • https://cdn.sqhk.co/devurekon/9mv9hiB/texas_a_m_corpus_christi_baseball_tryouts.pdfIn PDF document text
    • https://cdn.sqhk.co/zutigaku/hcqPqhB/mopakoguzid.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/jerjahj/soccer_tactics_board_software.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393358/normal_601881ef22621.pdfIn PDF document text
    • https://pexigupor.weebly.com/uploads/1/3/4/9/134901766/jefodux_sizajipek_pixomuvoleramo.pdfIn PDF document text
    • https://cdn.sqhk.co/zinoliwomi/Yhf7Oge/pibizunojenuzukog.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/vedexajawo/journal_citation_reports_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/detinijetetolezizo.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/fifawukatelisugex.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/kapokizovonisozasa.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_off0000d13f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13F 5300 bytes
SHA-256: 66894d7d1788cd3fbb289b5ae9962682efbf9a44a7b0bd5af8d400b1932cc6f1
font_01_sfnt_off0000e339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE339 10324 bytes
SHA-256: 1163f8f1db002090468f2263bda66d8b2c0b08952623bff1e883e0938bda0c7a

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