Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b678acc4a7df10a…

MALICIOUS

PDF

67.5 KB Created: 2021-02-27 16:33:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 24ec189808d275b4c439249cc337f4ec SHA-1: 913339f9bbdeb182062169616f132482f267235f SHA-256: 6b678acc4a7df10a3978355ebde326863a73ff6385ef4ad1a0411b22dcd86277
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://resalured.ru/award?keyword=el+circo+de+la+chola+chabuca+2019 PDF link annotation
    • http://fukazab.mywebcommunity.org/ar_blue_clean_ar383ss_australia.pdfIn PDF document text
    • http://fresh-ita.space/116274815554hd01.pdfIn PDF document text
    • http://vipimuxatomefi.medianewsonline.com/interior_design_course_london_free.pdfIn PDF document text
    • https://tiwebusimevadeb.weebly.com/uploads/1/3/5/3/135346158/sepij.pdfIn PDF document text
    • http://on-arenas.com/ejercicios_para_aumentar_masa_muscular_en_casaiv84g.pdfIn PDF document text
    • http://appletopshop.ru/90575461185nxrz6.pdfIn PDF document text
    • https://midusafamiriron.weebly.com/uploads/1/3/4/7/134702540/fevuvudiwo_mofowuko_viwejeni_ledifuju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401712/normal_5ffa8547f3c0b.pdfIn PDF document text
    • https://zibezalobe.weebly.com/uploads/1/3/4/5/134529300/fodaloropulojewubazi.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/19594688575.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/88365180470.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413244/normal_5fdbad37d0350.pdfIn PDF document text
    • https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/zisuvirebesoteni.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/ejercicios_de_estadistica_para_3_primaria.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/jeduzizonox/past_perfect_past_simple_exercises.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/basoxadafo.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_off0000c8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AF 5428 bytes
SHA-256: af399ac4d8c95abda69db9185739c0251bda2247784f8c1c8c3d9e6686e51923
font_01_sfnt_off0000db1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1F 11296 bytes
SHA-256: 0c5400803da02f18271a2229252c63ba3e163fea037e334afe237b97f7ae044b