Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2f4d7c0de89f2f…

MALICIOUS

PDF

64.5 KB Created: 2021-02-25 06:30:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5645578c69cd2490b7cd281b6f969679 SHA-1: eacda9c3b6da3ebca23c280d1d948aa37e3bacdf SHA-256: 9e2f4d7c0de89f2fdf82c47fe59c99d1437996819fce8ee9c33d4af98c193af1
184 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
  • 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/123?utm_term=green+dolphin+street+lead+sheet+pdf In PDF document text
    • https://cdn.sqhk.co/xegunorasu/iaihjcW/magic_color_color_by_number_online.pdfIn PDF document text
    • http://noxokolozoj.iblogger.org/63319931662.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/robin_hood_2010_movie_review.pdfIn PDF document text
    • https://sokirokesavosa.weebly.com/uploads/1/3/4/9/134901907/pekamidebujov_wazojevi_zamopa_fowidumesu.pdfIn PDF document text
    • https://ketawisu.weebly.com/uploads/1/3/1/4/131454029/32ffe554b.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/I1hibge/zefirarevive.pdfIn PDF document text
    • http://vebilodugisugod.iblogger.org/netflix_shows_laptop.pdfIn PDF document text
    • https://nigikejogu.weebly.com/uploads/1/3/4/9/134902550/6122172.pdfIn PDF document text
    • https://pobipumobixox.weebly.com/uploads/1/3/1/0/131070364/tojusagakuni.pdfIn PDF document text
    • https://fumamefix.weebly.com/uploads/1/3/0/8/130873833/rikukuxegutenajitudi.pdfIn PDF document text
    • https://cdn.sqhk.co/vibebexez/t8FDqib/natemisetos.pdfIn PDF document text
    • https://cdn.sqhk.co/ribovonubod/gQDjcaB/project_manager_jobs_linkedin_uk.pdfIn PDF document text
    • http://nekuwagibajese.getenjoyment.net/55230594152.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gigavolaxo.epizy.com/kuxudifimoxo.pdfIn PDF document text
    • http://molegonemuk.rf.gd/aer_lingus_flight_delay_compensation_claim_form.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/65400567122.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/dekaperon.pdfIn PDF document text
    • http://tusagotimus.epizy.com/20479883168.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_off0000c14f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC14F 5160 bytes
SHA-256: 1227927962b2cd8a5c041cb30d979fa13a89a5989ae36caaf6099ca28551d3b7
font_01_sfnt_off0000d2d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D8 9536 bytes
SHA-256: 2ade25215f5afe722e18823c07be6164037631e3e9ecfacfced7d228a6c11c76