Malicious PDF — malware analysis report

Static analysis result for SHA-256 014de444200a0a73…

MALICIOUS

PDF

69.3 KB Created: 2021-02-13 03:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 274d028bf278459d99b0f4e9ea4bc8f3 SHA-1: 48192b0a306abcd5bf027b2bd6caf8a531bda9c2 SHA-256: 014de444200a0a73e4675522aa76472ac089154bc17c9c2c83b35abb1a2b920d
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://bologen.ru/wix?keyword=peg+perego+manuale+primo+viaggio PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422897/normal_6005a6fc08e48.pdfIn PDF document text
    • https://damujulul.weebly.com/uploads/1/3/5/3/135335913/gilem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420434/normal_5fecf38c04f0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421205/normal_5fd093e6d39e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463287/normal_60026058a50b3.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/gbjcLSN/78952071735.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/feremubabi-rivaka-pipexo-jolob.pdfIn PDF document text
    • http://prizinsta24.online/london_bitmap_font_freeilskg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470218/normal_5ffce36a83d3b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416934/normal_5fcd5449ba8d8.pdfIn PDF document text
    • http://santaparker.store/pre_intermediate_speaking_activitieseesag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379219/normal_5ffe83e223310.pdfIn PDF document text
    • http://rating-bookmaker.ru/sazitn75ir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494165/normal_5ff715caa9d4e.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/HrzgiSg/unmatched_air_traffic_control_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/6aoWgix/disaster_will_strike_2_level_58.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383572/normal_5fd07f12021c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459641/normal_5ff9518811f82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402247/normal_601b1b376d1a9.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_off0000d267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD267 5020 bytes
SHA-256: e63311ecc9b03c77ee7b7b3def69b1c722356a8004f989d2d69a3b8916843d29
font_01_sfnt_off0000e371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE371 11116 bytes
SHA-256: b90f1e69cd1bc4a1ab7d1d7fdd1ee92a49fbbd6c96030aff7aa00a2aa06e2373