Malicious PDF — malware analysis report

Static analysis result for SHA-256 c165deda482abde4…

MALICIOUS

PDF

66.8 KB Created: 2021-03-02 07:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3a11dbae4b43b631abc71615def69a12 SHA-1: 70456608ddcd1963ddf29088d38bf4415957082b SHA-256: c165deda482abde492b6f2d267d251d555b0f1c32d95f27801606387093323dd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/wix?keyword=spalding+dual+shot+electronic+basketball+game+australia PDF link annotation
    • http://godisibipuvam.22web.org/84271123136.pdfIn PDF document text
    • http://pufivuziviv.mypressonline.com/dojivatuxoneta.pdfIn PDF document text
    • http://mafuditovu.iblogger.org/69002630856.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415950/normal_5ffdb9b68f900.pdfIn PDF document text
    • https://vizodejow.weebly.com/uploads/1/3/4/3/134356937/3000464.pdfIn PDF document text
    • https://gikositaga.weebly.com/uploads/1/3/4/7/134773380/4765702.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414867/normal_5ff68893ce203.pdfIn PDF document text
    • https://xaliwituxezaxe.weebly.com/uploads/1/3/5/3/135323019/donutujow-kesoporenapo-vawujij-koretuw.pdfIn PDF document text
    • http://medicalpracticementor.com/cuantos_gramos_tiene_una_cuchara_de_levaduramvwli.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/tisegovofu/acura_ilx_2013_manual.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/what_qualifications_do_i_need_to_be_a_vet_assistant.pdfIn PDF document text
    • http://rakejobik.epizy.com/84309863202.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/ccleaner_lite_apk.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/wijavon.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/kikefaw.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/ammonite_crab_osrs_guide.pdfIn PDF document text
    • http://tepimajasajuk.epizy.com/the_cars_greatest_hits.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_off0000c6e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E4 5796 bytes
SHA-256: 47571505c8a0defbc0e564ba9233bfecfbcfa2b8c3e2a1ef8dff16b5275ec622
font_01_sfnt_off0000da67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA67 10344 bytes
SHA-256: 69725f89c26923c4fbe61d7433d007754a9ae12ddeab3c7d2490f0cb6406fbbf