Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd250130eaac6dff…

MALICIOUS

PDF

69.4 KB Created: 2021-02-13 02:50:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2d733f4590ae6195a130b4ca8b5a8354 SHA-1: 914627212c9590e5f2a68156af175e395f21e45c SHA-256: fd250130eaac6dff48715e5eda66ffbd47c68f07dd161cd29f1d65725c48f931
126 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
  • 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/123?utm_term=david+thibodaux+stem+academy+lafayette+louisiana PDF link annotation
    • http://ch-data-2a8fv9s.pw/fishing_online_shop_norwayoaud2.pdfIn PDF document text
    • https://cdn.sqhk.co/torujazelome/ahaKidE/37638549848.pdfIn PDF document text
    • https://cdn.sqhk.co/visevunu/ihhjihy/8227530617.pdfIn PDF document text
    • http://avit0.cc/fortnite_installer_apk_awardd8260.pdfIn PDF document text
    • http://by-roof.ru/97309183011qzx0a.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/8dhh4j4/mexisilov.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvotalek/gimqlDM/mebokisibovusirepo.pdfIn PDF document text
    • https://cdn.sqhk.co/perigupa/j5jaJij/shoot_goal_beach_soccer_game_apk.pdfIn PDF document text
    • http://podcard2020.site/discrete_mathematics_notes_for_mcaythy4.pdfIn PDF document text
    • http://aov.one/80084279640s1mcm.pdfIn PDF document text
    • http://prodit.space/rpp_k13_biologi_sma_kelas_x7gc9u.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/jihcjbH/mechanical_engineering_internships_jobs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wexugemo.epizy.com/20218614748.pdfIn PDF document text
    • http://ruzoguniwu.epizy.com/69486298448.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/35058264509.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_off0000d158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD158 5536 bytes
SHA-256: 711228bd9e612aeb65f3ea81362dc3ff170bd5b19534a5c4db6815d29aa5a36d
font_01_sfnt_off0000e41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41E 10580 bytes
SHA-256: aca59840cbd92af962854b30ac4ceabd336662bea50795cfbe8ef4b64c0ee590