Malicious PDF — malware analysis report

Static analysis result for SHA-256 91689e7d672fcb8f…

MALICIOUS

PDF

62.6 KB Created: 2021-01-30 10:08:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f19ab13e99a369dde899819b06f1ea42 SHA-1: 8e8c0f34db7a702b2fbedee8fcf6501d2eab16df SHA-256: 91689e7d672fcb8f6e0d76b5bb10a471b8979075bb1fa6b33ff47b4a90c0c345
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://maypoin.ru/aws?utm_term=cerus+industrial+titan+p+series+manual PDF link annotation
    • https://cdn.sqhk.co/fazofasufiwu/bhaIRij/matixokiresitejozisegopi.pdfIn PDF document text
    • http://italia-doc.space/pidofagh7e5s.pdfIn PDF document text
    • https://povarudoro.weebly.com/uploads/1/3/5/3/135324530/devalugup.pdfIn PDF document text
    • http://vermono.site/bbc_mundo_venezuela_crisisiyegl.pdfIn PDF document text
    • https://dapalirodo.weebly.com/uploads/1/3/1/4/131483520/pisadinavoxapufasolo.pdfIn PDF document text
    • https://cdn.sqhk.co/zipodumup/d4DZgja/.pdfIn PDF document text
    • https://cdn.sqhk.co/votezevon/ejihdyU/sepiruvenirebesu.pdfIn PDF document text
    • http://jirobanu.22web.org/wanaximatexenoxawomewe.pdfIn PDF document text
    • https://rokawutavepuma.weebly.com/uploads/1/3/0/7/130776645/8352837.pdfIn PDF document text
    • https://gosabejeda.weebly.com/uploads/1/3/1/4/131453015/4429de262.pdfIn PDF document text
    • https://gamevuwi.weebly.com/uploads/1/3/4/5/134525912/e956bc0bc3.pdfIn PDF document text
    • http://uspex22.online/zitirolofisatireraxunafun30ljv.pdfIn PDF document text
    • https://kuwovewifinux.weebly.com/uploads/1/3/0/7/130775990/e08a6b05e8f57f.pdfIn PDF document text
    • https://xirovule.weebly.com/uploads/1/3/4/7/134749068/pibarunilodonuv-jolujutomubo.pdfIn PDF document text
    • https://pusexijubod.weebly.com/uploads/1/3/5/2/135296384/024cb245f.pdfIn PDF document text
    • http://antonio-ita.space/katikomemegitum46gjh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepedijuva.epizy.com/biological_science_book.pdfIn PDF document text
    • http://bikilut.epizy.com/77331867486.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_off0000b8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B0 5012 bytes
SHA-256: fa8a31f7ef590b6d9cff2b683fd38644ca79d9d50042b2c96bddf93b790b33f3
font_01_sfnt_off0000c99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC99B 11108 bytes
SHA-256: 978d59ebcd65742b9ecc27b0d03f97de82951d31199392849769c19a64c53129

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