Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fe07f75ec1064bc…

MALICIOUS

PDF

72.1 KB Created: 2021-02-27 01:47:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6eaefaa68380570ebe7b2147417d7e5b SHA-1: c5643092f736b5e6f384fd88a62e48b95957f97a SHA-256: 4fe07f75ec1064bc4484f8b9104f7cf1a6924c74409a15138cb2b09abcb5271e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=major+lazer+lean+on+mp3+download+skull PDF link annotation
    • http://rejemezurufoveg.mywebcommunity.org/what_time_does_the_stock_market_open_my_time.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/flgdmjg/82919313906.pdfIn PDF document text
    • https://cdn.sqhk.co/vemetafije/OdVUZgf/vosepimamemokosojona.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwovodegi/ehgjcih/absorption_spectrometry_definition_chemistry.pdfIn PDF document text
    • https://cdn.sqhk.co/senogewuki/A60RicZ/afterburner_game_boy_advance.pdfIn PDF document text
    • https://moraraxewurazi.weebly.com/uploads/1/3/4/0/134042425/9640856.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/cjjNidY/stock_cars_for_nascar_wallpapers.pdfIn PDF document text
    • http://zekaxezixil.medianewsonline.com/zerikawofixesen.pdfIn PDF document text
    • http://bejisosubonito.sportsontheweb.net/64554158297.pdfIn PDF document text
    • https://pegufalijedosok.weebly.com/uploads/1/3/4/5/134589263/lenenaxiganawolim.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/hejhMMY/62078005751.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460263/normal_5fce8ecb4f7cd.pdfIn PDF document text
    • https://cdn.sqhk.co/susiwozobo/gfhjhgd/wugojusoxagovarevajo.pdfIn PDF document text
    • https://tefajarusi.weebly.com/uploads/1/3/0/7/130775660/fipofosusewopemiwef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389095/normal_5ff89ff3eda66.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/10_tricky_interview_questions_answers.pdfIn PDF document text
    • https://tesurupijirixu.weebly.com/uploads/1/3/0/8/130813669/3e7e45d99.pdfIn PDF document text
    • https://cdn.sqhk.co/dexasubu/hgdxjfi/75880065663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379982/normal_5fd137fb574dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE2D 5308 bytes
SHA-256: 6c3e184369ae13420838a73c3130c8479bda39c593dbd5b2205825c687f60d1b
font_01_sfnt_off0000e042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE042 10504 bytes
SHA-256: 66e4e337a34916874da380e53e0ec26147c2c76ed091730738274df627c91dd0
font_02_sfnt_off0001044e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1044E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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