Malicious PDF — malware analysis report

Static analysis result for SHA-256 db46b51350d8344f…

MALICIOUS

PDF

65.2 KB Created: 2021-01-25 03:41:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7b52ee24d5f4387de29ce96dc3c8eb6b SHA-1: acd8891cdf96f8e4df746940083de01c6e4f25ef SHA-256: db46b51350d8344f55d49d18b84830df0e6bb7606b7b272204c21683b47525bc
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://leonvi.ru/aws?utm_term=ahirani+khandeshi+song PDF link annotation
    • https://devarewiwigunum.weebly.com/uploads/1/3/2/7/132710712/4711347.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453900/normal_5fe0ea5f0dca5.pdfIn PDF document text
    • https://cdn.sqhk.co/jozunufap/2ocjgif/modalosubekofetirewe.pdfIn PDF document text
    • https://volafonozus.weebly.com/uploads/1/3/0/7/130775232/8312115.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412183/normal_5ff3eca0c71c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417808/normal_5fd324599a4f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372980/normal_5fdf8de73a7d2.pdfIn PDF document text
    • https://nujokolove.weebly.com/uploads/1/3/0/8/130874035/xokavemopagen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/74605553750.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/bubble_shooter_mod_apk_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/56209218912.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/aashto_pavement_design_excel_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/huawei_p_smart_android_9._1_update.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/56860209806.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/manualidades_navideas_para_nios_pequeos_preescolares.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_off0000c25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25A 5108 bytes
SHA-256: 2e10ec018f572c03534eb4512d478f593b25cae7c737174f4017b16312a4e921
font_01_sfnt_off0000d3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3AD 10816 bytes
SHA-256: 73940933f941bbc4e03388fd7d6376821582a35fcb6a51e2ca8053624f63966a