Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d6c5f9f0ecd87e…

MALICIOUS

PDF

75.1 KB Created: 2021-03-07 23:17:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a7d799ac6f4a2fca9e8dd5e069c5ff03 SHA-1: ac4e0dc87e0f5755b156eb25bf996f788ab4164a SHA-256: 00d6c5f9f0ecd87e5e0760901242d07743b203881d5ed41461a269f0ef8564b1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://nipisod.ru/wix?keyword=apk+emulator+windows+vista PDF link annotation
    • https://depasosuva.weebly.com/uploads/1/3/4/4/134483816/4900582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417405/normal_5fe1581e88e26.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/75235740392dc34t.pdfIn PDF document text
    • https://cdn.sqhk.co/kagixepo/fjegikL/hp_smart_app_for_apple_mac.pdfIn PDF document text
    • http://presentinsta.online/how_to_make_a_claw_out_of_paper_step_by_stepqn3te.pdfIn PDF document text
    • https://cdn.sqhk.co/xilasexiki/nWvhgge/jilijomidefarupuw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459470/normal_5ff9ff3502bbd.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/jzHhe1Q/66506720943.pdfIn PDF document text
    • https://safubijob.weebly.com/uploads/1/3/2/6/132682970/terinepevuto.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/gogunabones/bwana_awabariki.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/ewg_guide_to_safer_sunscreens.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/papud.pdfIn PDF document text
    • https://488c2ff9-9ff4-499e-8f11-525115e20b22.filesusr.com/ugd/8aba0c_45df3b13adce46d8ba6413393e25d082.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vebisop/helm_chart_template_if_condition.pdfIn PDF document text
    • https://cb70cc59-2297-49c3-b7e2-2ac7e26e28d4.filesusr.com/ugd/4479ed_53c9e64b26714218b58db65e78abf072.pdf?index=trueIn PDF document text
    • https://1b6fbac1-9b66-4609-9151-81f5d4c316f7.filesusr.com/ugd/5e81b9_583dcb3a8fad440c9c1916d1ae1b1a37.pdf?index=trueIn PDF document text
    • https://168d2a81-f750-40c6-a653-3787650f980d.filesusr.com/ugd/3bcfef_dcf6c238fd714b0ba32f05fe9dce16fa.pdf?index=trueIn PDF document text
    • https://52431b39-7396-4b0c-bcaf-ab72d449a1bf.filesusr.com/ugd/f8cef3_16eba3bd71c1419497462a4573782e43.pdf?index=trueIn 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_off0000e446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 5312 bytes
SHA-256: 2a37d0297d1dab99a4e3235a4ab6af5b7923aeef3e39d4bda97d19b9c01b7a10
font_01_sfnt_off0000f655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF655 13120 bytes
SHA-256: 36bfb6273607b456d7e0355b27200a02cce1030c7ddb58cf5167ebcaf49bc7d0

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