Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fb86784fbe1e91…

MALICIOUS

PDF

72.2 KB Created: 2021-03-05 01:41:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b511e17ba83d053f81bee33afb01e2cc SHA-1: a4ddcc5c658fdc166a2f87ffdca2a681603bfcd5 SHA-256: e7fb86784fbe1e91a281d4d045f644ef27a8f3a7a3556fca77015e49a18d9b11
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://golowaki.ru/award?keyword=international+business+college+indianapolis+in+46256 PDF link annotation
    • http://basagutidabe.sportsontheweb.net/84769979341.pdfIn PDF document text
    • https://cdn.sqhk.co/sawibevas/6Rjichb/85924894588.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369664/normal_5fd8f8e242a27.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/libro_cien_aos_de_soledad_de_que_trata.pdfIn PDF document text
    • https://reponobokuwe.weebly.com/uploads/1/3/5/4/135401207/3168727.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/ficQcjf/tiktok_mashup_youtube_not_clean.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/cfSYd9h/geregivabo.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/gjihgg6/89140943261.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/lincoln_y.__guba_e._1985._naturalistic_inquiry._newbury_park_ca_sage.pdfIn PDF document text
    • https://wajovojov.weebly.com/uploads/1/3/4/6/134652085/665f3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404512/normal_6003ab4c7cb99.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/what_are_the_rules_for_dating_a_minor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371509/normal_5ff636f7ac715.pdfIn PDF document text
    • https://cdn.sqhk.co/mavixuwaloz/cWKbjgg/narcos_cartel_wars_hack_tool_download.pdfIn PDF document text
    • http://naliputa.mywebcommunity.org/59895763175.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesitebogi.epizy.com/nec_national_electrical_code_nfpa_70.pdfIn PDF document text
    • http://guxenubegipus.epizy.com/raxojelavoti.pdfIn PDF document text
    • http://nopugorib.onlinewebshop.net/ingersoll_rand_ssr-ep100_parts.pdfIn PDF document text
    • http://tuzuxutetug.atwebpages.com/99389482039.pdfIn PDF document text
    • http://pigutun.myartsonline.com/how_to_silence_a_samsung_microwave.pdfIn PDF document text
    • http://wutesejib.onlinewebshop.net/98834574107.pdfIn PDF document text
    • http://nelarigutixus.rf.gd/tavebigedodadubiv.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_off0000d988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD988 5816 bytes
SHA-256: 2d2206b18d5dcf087f10a5ac3169be6bd381708262bcded52fff87066b8141e3
font_01_sfnt_off0000ed62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED62 11084 bytes
SHA-256: 04cd5fcd993c16ea9bcb031d890fbcbd6bf17ad60b0dfae0fb96dcd37344856c

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