Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0769176b7433cf…

MALICIOUS

PDF

62.5 KB Created: 2021-02-11 21:44:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 23d93ce1ce047789cb61ed2ee5c1a1de SHA-1: dabfe0a8e3b81a788465c20267d9a8e8277a5d0c SHA-256: ca0769176b7433cfc357395955a60a13cbc3c37adcfb1ac2714b9297b63ffb32
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://baarspo.ru/wb?keyword=arcadia%20quest%20inferno%20painting%20guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420905/normal_5fffed1c06a55.pdfIn PDF document text
    • http://femikig.22web.org/tipaxejije.pdfIn PDF document text
    • http://kihepc.xyz/autosketch_for_mac_freemricg.pdfIn PDF document text
    • http://dobogoj.iblogger.org/chhota_bheem_himalayan_movie_free.pdfIn PDF document text
    • http://duzuxilobovix.iblogger.org/dk_crayon_font_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388169/normal_60040af76a851.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451954/normal_600b68453e3a7.pdfIn PDF document text
    • http://smilex.club/windows_10_version_1809_iso_files3p4m0.pdfIn PDF document text
    • http://lemufarora.22web.org/hiroshima_sightseeing_guide_map.pdfIn PDF document text
    • https://cdn.sqhk.co/nesadatifu/aPicLhh/pagarijujezo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://naremijex.epizy.com/jixaguporuzikaw.pdfIn PDF document text
    • http://tepuxasimu.rf.gd/internet_manager_registration_serial_number.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/61881912373.pdfIn PDF document text
    • http://renirujetumofid.epizy.com/gavoxekekuxesojo.pdfIn PDF document text
    • http://pexivakerofus.rf.gd/mercedes_gla_200d_manual.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_off0000b76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB76D 5404 bytes
SHA-256: 00296135fd260f82eaeeca148ca952451ecc70757f70c7ff9e5953b0ec2dba67
font_01_sfnt_off0000c9de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9DE 10256 bytes
SHA-256: de3dd7d5cc6b712479ef75dd10a6eec6dcb7d9dab87d5425f1e818ba6ac2792c