Malicious PDF — malware analysis report

Static analysis result for SHA-256 defd8f68622e7e72…

MALICIOUS

PDF

73.4 KB Created: 2021-01-28 07:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d41ba7ba590f8632cd4942f9e3a3f13e SHA-1: e07060be49d9ae83bfe6a2482e55d38d19d45417 SHA-256: defd8f68622e7e72f182aa4a9e6c787b61d371a0b6fdfcd9356fb8f1a2a77259
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/wb?keyword=alien%20abduction%202014%20run%20time PDF link annotation
    • https://cdn.sqhk.co/demexadol/jfYjaxC/nazaxakawetuwanan.pdfIn PDF document text
    • https://cdn.sqhk.co/nalawanuxa/vjhQ1M0/gogeritenofakunuwiro.pdfIn PDF document text
    • https://cdn.sqhk.co/mapelimujeku/krmjdij/online_colouring_pages_for_kids_disney.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462350/normal_6008dd9a15b85.pdfIn PDF document text
    • https://cdn.sqhk.co/semiwewedazi/eoggIbG/top_bollywood_songs_2019_romantic.pdfIn PDF document text
    • http://samiter.22web.org/desapazesijamona.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454543/normal_5fc5d98435387.pdfIn PDF document text
    • https://cdn.sqhk.co/vumatoxikom/aljdgdA/2287781219.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411481/normal_5feb1d9fe4e9c.pdfIn PDF document text
    • https://cdn.sqhk.co/wakivugex/ihjbaKF/miniature_bowling_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/he2mDja/burger_time_machine_in_denton_texas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xivubijorudi.epizy.com/61825989967.pdfIn PDF document text
    • http://manutilo.epizy.com/adblock_chrome_android_tv.pdfIn PDF document text
    • http://riporem.epizy.com/22621046756.pdfIn PDF document text
    • http://rajixubododafu.epizy.com/shirt_cutting_and_stitching.pdfIn PDF document text
    • http://dixadenidufudu.epizy.com/causas_de_acidosis_metabolica_hipercloremica.pdfIn PDF document text
    • http://kasisexa.rf.gd/91380981314.pdfIn PDF document text
    • http://jegowijuvu.epizy.com/aaromale_kadhal_audio_songs_ing.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_off0000e144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE144 5448 bytes
SHA-256: 0a967e4310be2493c250bcb02269afd34722095e4ed23fbcfc5a86b820ca3efa
font_01_sfnt_off0000f3bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BF 10832 bytes
SHA-256: fe8b0b0f335acf5d99f4970279d7e2f698477fdc5ee167fe478e3a62b65abb35