Malicious PDF — malware analysis report

Static analysis result for SHA-256 72264d7579542ad7…

MALICIOUS

PDF

69.6 KB Created: 2021-03-06 09:49:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f44398cf73ffd7296a328517d37c25be SHA-1: 21f2ab11aa5faf32260c38f07e39f17ed2209127 SHA-256: 72264d7579542ad7d44e88738303a7dc2de0651e99d2a0332cec22b91760572e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xezojetit.ru/award?keyword=2006+gmc+envoy+tire+size PDF link annotation
    • http://gachihyper.xyz/8915817927atha6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448323/normal_5fe5dad74dec5.pdfIn PDF document text
    • https://silemixijotin.weebly.com/uploads/1/3/4/4/134463531/6647832.pdfIn PDF document text
    • http://vsspb.ru/bejezerarolisuxotesoforopr9dbk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448719/normal_603e7a49cb322.pdfIn PDF document text
    • http://nicepics.xyz/pbs_video_app_windows_10d2zwa.pdfIn PDF document text
    • https://wodiwige.weebly.com/uploads/1/3/5/3/135317556/lofiranuvasat.pdfIn PDF document text
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/lifaporomev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374520/normal_602b3af091964.pdfIn PDF document text
    • https://mafalipakirufez.weebly.com/uploads/1/3/5/3/135347960/moritizo_dapiron_buzod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367287/normal_5ffc044edd021.pdfIn PDF document text
    • http://alternativeinfluencenetwork.net/255456421845kald.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368759/normal_600edc69bc642.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464534/normal_603bffd27f0f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417644/normal_601b992bc6098.pdfIn PDF document text
    • http://wegansit.space/jelev4ij0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370767/normal_5fcd8d2f5f52c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490524/normal_60031b1a62e85.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460070/normal_5fcef7f88cd45.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465537/normal_6005391bba6c4.pdfIn PDF document text
    • http://starkrobotics.org/3189333617582vtf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469386/normal_5fdd8662e37ab.pdfIn PDF document text
    • http://dragonflysagewellness.com/gelatin_sheets_publixuoveb.pdfIn PDF document text
    • http://thefortykuti.com/family_feud_jumbo_card_game_rules62y7q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d4d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D9 5424 bytes
SHA-256: 08568291e5e60eb214ddc3b8a0acfc551eea316531ba8b9f6fb56032ecbebf5a
font_01_sfnt_off0000e752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE752 9864 bytes
SHA-256: b10567d9475be1acbe8b1d7a55c6e614ffbbbc0392a7bb20d785c362faf3061b

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