Malicious PDF — malware analysis report

Static analysis result for SHA-256 e727b67ce5f142e3…

MALICIOUS

PDF

71.8 KB Created: 2021-02-23 12:38:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 939969bd63f45d05e96a9ff0e11430b4 SHA-1: ef018611b952f091160abbcc92e53cd9eca09d81 SHA-256: e727b67ce5f142e373b70f359f0ccc091a86eaa57697607130b9363feb9d2db3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=ttd+online+seva+app+download PDF link annotation
    • https://cdn.sqhk.co/jarogofef/ijicpjb/dedomajotivebob.pdfIn PDF document text
    • http://salestore.pro/the_last_wolf_mary_tallmountainra5oe.pdfIn PDF document text
    • http://romeita.space/59390037823ap5s4.pdfIn PDF document text
    • http://arboozfilm.com/wazunijumabidewukujipk00.pdfIn PDF document text
    • http://cashbackmoney.info/econfigure_knx_lite_download758io.pdfIn PDF document text
    • http://dasuwupozu.22web.org/1907016034.pdfIn PDF document text
    • http://portkamesto.site/grand_grimoire_chronicles_3_walkthroughvdclq.pdfIn PDF document text
    • http://scm03.ru/gijugg34k4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusirana.rf.gd/popular_hobbies_word_whizzle_search_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/pdf_file_to_jpg_converter_online_free.pdfIn PDF document text
    • http://fafuwite.epizy.com/samiluvikepasamuwodov.pdfIn PDF document text
    • http://lugukejuraxa.rf.gd/experienced_nurse_resume_template.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/playstation-_2-_bios-_pack._7z_free.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/64716468934.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/79353039908.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_off0000dec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC8 4956 bytes
SHA-256: 54a58cc0e389084ec29c4d8859a1408cb2aed7dde80b1cb841bc4e920d667911
font_01_sfnt_off0000efcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCD 10084 bytes
SHA-256: 80771c6dbbc6dee7b26118e3506cdab113d62c7cd8e68fa93ab8854a8b3a8f09