Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd8023cabd1a2a5…

MALICIOUS

PDF

69.6 KB Created: 2021-02-12 14:25:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dc205aa66fe5adffd68305516c6f4885 SHA-1: eb8e752e38240368372125178ff66d7233060041 SHA-256: 5cd8023cabd1a2a55f4aaa7d8810d5499a9d8b415ff409194e58f82fe52e3360
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://yafferge.ru/wix?keyword=ikigai+pdf+indonesia In PDF document text
    • https://static.s123-cdn-static.com/uploads/4530070/normal_5ff15344939a3.pdfIn PDF document text
    • https://wakutoji.weebly.com/uploads/1/3/4/3/134314583/b4adeda28126.pdfIn PDF document text
    • https://zunejafeg.weebly.com/uploads/1/3/4/3/134382709/xebuxasologi-jesiso-pizizufo-gowub.pdfIn PDF document text
    • https://xatiletovolut.weebly.com/uploads/1/3/1/4/131409128/ec14a0dd60fb820.pdfIn PDF document text
    • http://duxojiz.iblogger.org/lignospan_2_safety_data_sheet.pdfIn PDF document text
    • http://dehydratedoriginalgoodness.com/all_the_things_addon06rae.pdfIn PDF document text
    • http://skidki-day.shop/paxatazupitizuxopeladojungqp31.pdfIn PDF document text
    • http://arboozfilm.com/74972709571emnv6.pdfIn PDF document text
    • http://kittyplay.online/pakabarorofapiposzfy2.pdfIn PDF document text
    • https://sujibovuf.weebly.com/uploads/1/3/4/7/134705076/rabopaxajedel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pagitewuzowika.epizy.com/agnisakshi_serial_song_audio.pdfIn PDF document text
    • http://gezexibubaju.rf.gd/cantilever_pool_deck_forms.pdfIn PDF document text
    • http://noporotosodapo.epizy.com/super_fund_binding_nomination_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/food_bioconversion.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_off0000d162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD162 5080 bytes
SHA-256: d223d54c770ac8abc9c35167b8b582baadf832a875a5b0bec4e34bbf78b238cd
font_01_sfnt_off0000e2cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2CF 12236 bytes
SHA-256: 7b6ae4c131a197fd8212a73ea72ee74905587dfff5e93f32bcc639ae811e7558