Malicious PDF — malware analysis report

Static analysis result for SHA-256 75423d22a0d5595e…

MALICIOUS

PDF

75.0 KB Created: 2021-03-05 19:30:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d27ed82f7e9a931007d638015937d2a2 SHA-1: bf4f8debb714c1e3b93c5453e1af80dc0544c957 SHA-256: 75423d22a0d5595e5070d3003124299f2c72c3eb2750ac1b357ae632dddc0148
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=how+to+set+up+tracfone+lg+rebel+4 In PDF document text
    • http://13millions.store/meaning_of_research_instrumentcikyt.pdfIn PDF document text
    • http://vwwv-avito.online/janome_new_home_mini_sewing_machine_manualmwm58.pdfIn PDF document text
    • http://risumeboze.getenjoyment.net/wovekobosobipakepox.pdfIn PDF document text
    • http://prizinsta365.website/tebifugurakepuninupixdeft.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/ighijhh/kitemajigasadinulofaj.pdfIn PDF document text
    • https://cdn.sqhk.co/munuluxel/qig3fgi/xibugojagatavufowom.pdfIn PDF document text
    • http://organize.shop/45695393288wm7cs.pdfIn PDF document text
    • http://goproits.com/java_for_32_bit_windows_xphunrv.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/b71OgeK/72714190471.pdfIn PDF document text
    • http://xiwesesakuvel.medianewsonline.com/why_do_you_get_blood_spots_in_your_eyes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wenares.myartsonline.com/55523155557.pdfIn PDF document text
    • https://6cdf8c5e-36a0-4b6d-987f-32d3d50030cd.filesusr.com/ugd/3c2e2e_139fd4d90414484d8843f66501ca5f3c.pdf?index=trueIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_c084bd99a46e4c4ea01f4a1ef81d4b32.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf02e979-218c-4089-8fb5-811d713b9fb6/1978_dodge_sportsman_rv_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37540704-3b77-4115-9978-77e8de7136cf/4706655454.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_off0000e9b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B7 5464 bytes
SHA-256: 16c98a9c91969d42df940990b966822163794f3098fc8852244c3898c71d7400
font_01_sfnt_off0000fc73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC73 10176 bytes
SHA-256: 067d49784608abc50b27abe13285297d077e315615a5e1d65f4fba94ca722869