Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5a7ff003e36abc7…

MALICIOUS

PDF

68.9 KB Created: 2021-02-20 14:59:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d84bee20229038087b0efd5fba5b9a5a SHA-1: 401a867f9e61ba1ca0e5e1872bb4768af65527b2 SHA-256: a5a7ff003e36abc78bef8c5504264a00e1bb11703d9e8024d58c67e899697ea5
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://leonvi.ru/wb?keyword=omni%20mae%20paint%20mix%20ratio PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417313/normal_600d1251c666c.pdfIn PDF document text
    • https://bobovisosusare.weebly.com/uploads/1/3/5/3/135394734/985833.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/2jijbmT/dub_dash_cam_reviews_consumer_reports.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413564/normal_5fce4b56240a6.pdfIn PDF document text
    • http://citimart.online/384816253335p3n3.pdfIn PDF document text
    • http://help-mediasupport.com/4514339124764xdg.pdfIn PDF document text
    • https://jomagikovire.weebly.com/uploads/1/3/1/4/131408086/5215618.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465685/normal_5feea7c0720e7.pdfIn PDF document text
    • https://mamonaxerif.weebly.com/uploads/1/3/5/3/135347384/4961462.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/rhdibNC/niwasuvinatogeji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489057/normal_6025a617d3e44.pdfIn PDF document text
    • http://ryduslim.website/international_guidelines_inguinal_herniadxmp0.pdfIn PDF document text
    • http://trysucre.pro/android_wear_watch_faces_2018vj46j.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzalolotagi/idjaQgd/98877738744.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/tabobujimo/jezovomulovodibabe.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/davichi_this_love_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/pink_platform_heels_boots.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/jogefunerilurujeseba.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_off0000d20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20A 4848 bytes
SHA-256: 9a5fcb3dafc17561d1a72d8d6ab91eda58ddf481af55a814f5a06db1d5a93d5c
font_01_sfnt_off0000e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE273 10672 bytes
SHA-256: 488907ebeacd85b28378bc94f6b84409418713828ffa1744ef07da5394605fae