Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef0c729534cc900…

MALICIOUS

PDF

65.8 KB Created: 2021-02-20 19:36:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95b792a174c3ddf910997e64eb3e6439 SHA-1: dbd7eeadf4c457637b8ea4a4694105f08835c2de SHA-256: eef0c729534cc9005149a3c4d888d598bee0886d40a32db37abc8e26a2ba84c2
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://jacksth.ru/123?utm_term=eurydice+sarah+ruhl+monologue PDF link annotation
    • http://idealica-columbia.site/the_art_of_war_chapter_5_summarylfmy1.pdfIn PDF document text
    • http://shortsomfj.space/277351759320cm79.pdfIn PDF document text
    • http://shop-kid-toys.online/kopufimozukvt55.pdfIn PDF document text
    • https://sodikisug.weebly.com/uploads/1/3/1/4/131437766/bumiduxoxobiko.pdfIn PDF document text
    • http://alex-travel.moscow/samsung_members_beta_apk4n27t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369797/normal_601814a6b7e6a.pdfIn PDF document text
    • http://appletopshop.ru/malaguena_sheet_music_for_classical1m413.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378599/normal_5fefd458f0956.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387411/normal_5fdc1e7bd3890.pdfIn PDF document text
    • http://milanomoda.site/705492044388x82u.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/lovanobikedawulojarikota3s4vb.pdfIn PDF document text
    • http://3gusevshop.website/principles_of_design_unity_and_harmony_definitionqmqkw.pdfIn PDF document text
    • https://jedijevabepepox.weebly.com/uploads/1/3/0/7/130739982/3875011.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://novoniranalisa.epizy.com/vubelinosopawodego.pdfIn PDF document text
    • http://javasuk.epizy.com/jusaguve.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_off0000c510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC510 5412 bytes
SHA-256: e53671ff4932f994e63c8f996843e563812ea9d34465ff23bb6a1de52c3f5a01
font_01_sfnt_off0000d75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75C 10196 bytes
SHA-256: 29fc7ba2aff656a5dba2ee7a57597fd8bb5e9653bf1cad3ad46a9b226bd8702c