Malicious PDF — malware analysis report

Static analysis result for SHA-256 d84a34a02fa0e5ef…

MALICIOUS

PDF

71.2 KB Created: 2021-02-22 04:38:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9d8139a362f8f92a9ee2379c8f4d2008 SHA-1: 06bcb092dc2e3d3ba1a1bfbe9cd0b66401cc3d94 SHA-256: d84a34a02fa0e5ef8cab3f8e515215bb1d92fedbb7f6e054f727b0d0632e4949
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=law+works+action+play PDF link annotation
    • https://vagapirub.weebly.com/uploads/1/3/4/6/134648019/7fd30380b0.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/ejhhi5f/85708423454.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376878/normal_5fd6e118183e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467325/normal_600f37dc7a3b6.pdfIn PDF document text
    • https://cdn.sqhk.co/difakezil/gdgjibF/dubowibetexomikopazirew.pdfIn PDF document text
    • http://wofirulufe.iblogger.org/arabic_remix_ringtone_2018.pdfIn PDF document text
    • https://pegigisujojefuf.weebly.com/uploads/1/3/1/4/131413718/kerod.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/hcggG7Y/playroom_organization_furniture.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/ridil.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/whicicL/33080654292.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/fekaduvopigab/depuzakawuzatusamuwos.pdfIn PDF document text
    • http://wapudajikipidem.epizy.com/xikiganedivenim.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/jogagexutawalamisizasuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/sexemetaxon.pdfIn PDF document text
    • http://sikejilewiz.epizy.com/samsung_s10_android_10_t_mobile.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_off0000d89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89B 5124 bytes
SHA-256: bbd94c0a97956ff01d99a5fd7a89aefc66ebdceff0133cc87c3c9c8180b58580
font_01_sfnt_off0000ea3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3C 10992 bytes
SHA-256: 961f8ef242ff167f854ece8c55d84137bd27b0d5ad49ae17f52db093990be0bc