Malicious PDF — malware analysis report

Static analysis result for SHA-256 07de809852e5e0e3…

MALICIOUS

PDF

65.6 KB Created: 2021-02-14 12:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c273b4bc199bd0772894edf5a0de86dc SHA-1: d65ee3c9d97cb98717b6ed2b213317b623d28c96 SHA-256: 07de809852e5e0e3387020f96a9adf08a684905f068d994e540e36c0289927f4
186 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
  • 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.
  • 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.
  • 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://jottigo.ru/123?utm_term=sexy+italian+women PDF link annotation
    • https://cdn.sqhk.co/pajerelo/33ghe1h/unicorn_calculator_kmart.pdfIn PDF document text
    • https://cdn.sqhk.co/walumupo/hihjdgg/creative_destruction_definition_psychology.pdfIn PDF document text
    • https://wozukepob.weebly.com/uploads/1/3/4/0/134017809/8532323.pdfIn PDF document text
    • https://cdn.sqhk.co/tajixixejafi/Ujh2DZN/29325657709.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467273/normal_5fc93a8022f86.pdfIn PDF document text
    • https://xinewufovina.weebly.com/uploads/1/3/4/2/134235071/debasi.pdfIn PDF document text
    • https://cdn.sqhk.co/zimajigon/ggijDJC/masha_and_the_bear_birthday_party_invitation.pdfIn PDF document text
    • http://vabakavolageni.22web.org/angular_7_interview_questions.pdfIn PDF document text
    • http://xugejanakumeder.iblogger.org/firovaborewinofuvibi.pdfIn PDF document text
    • https://jetosopotow.weebly.com/uploads/1/3/4/0/134018613/719535.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/ggidhfM/vikufogumamiw.pdfIn PDF document text
    • https://cdn.sqhk.co/gomuwumetixu/UpT1adN/63499101687.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/6SigHjc/rope_slash_mod_apk.pdfIn PDF document text
    • http://metikinave.22web.org/prokaryotes_bacteria_and_archaea_worksheet.pdfIn PDF document text
    • http://neliwiveles.22web.org/do_lol_pbe.pdfIn PDF document text
    • https://zumuwezejulo.weebly.com/uploads/1/3/1/4/131455722/9742499.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/hbr5Ygg/sesizesisorukodi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xonukekavufimil.epizy.com/verizon_wireless_lg_android_phones.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_off0000c501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC501 4924 bytes
SHA-256: 86405789971831831c9b3b98b7dd303745f16eca6053e08f6303ad965d834d9f
font_01_sfnt_off0000d5d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D0 10488 bytes
SHA-256: 912661a6b46ba46a23980b848f26ee3e7e65b9034cff4af8e0ec7b05c241f509