Malicious PDF — malware analysis report

Static analysis result for SHA-256 9149bca87d216548…

MALICIOUS

PDF

78.5 KB Created: 2021-03-11 22:52:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ea71beded32ec85eabd70cff74b43b68 SHA-1: a2d49dbd9d6ab96bce934f5700b05a155c1065f9 SHA-256: 9149bca87d21654803aaa9abdbf4243450e02b5a83e9291e5bd2a4ce8e307683
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://vilenefex.ru/strik?utm_term=is+there+a+season+2+of+nancy+drew PDF link annotation
    • http://wifefavowe.iblogger.org/diagnostico_diferencial_de_angina_de_pecho.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/24YrEih/jebufifow.pdfIn PDF document text
    • https://vaseviga.weebly.com/uploads/1/3/3/9/133986607/gaxuxubikitaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384030/normal_603def71f40be.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/23phfyO/music_player_audio_player_apk.pdfIn PDF document text
    • http://bafedudovodamo.medianewsonline.com/46999542751.pdfIn PDF document text
    • http://juvizex.sportsontheweb.net/best_vegetarian_cookbooks_uk_2019.pdfIn PDF document text
    • https://buxiwizekekaxe.weebly.com/uploads/1/3/4/6/134662233/8713275.pdfIn PDF document text
    • https://cdn.sqhk.co/rebosuvut/bygdShf/lopowozetonusiku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385197/normal_6025985ecdce6.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/djgXvhh/34940163511.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377679/normal_6017331d3b92d.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/dyAz46z/nascar_heat_mobile_mod_apk_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/532cbe61-577f-45f3-b83d-40ed057d7ecd/adverbs_always_end_in_ly.pdfIn PDF document text
    • http://fukutinupamebo.rf.gd/78238082888.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d15d64fc-27c1-402d-bcca-2caaa5c0c98e/free_mouse_and_keyboard_recorder_3.1.3.2_license_codes.pdfIn PDF document text
    • http://misanedajog.myartsonline.com/39425264798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/012242fe-6310-4bef-8a79-6add326182f2/65804627280.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_off0000f585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF585 5340 bytes
SHA-256: a5006ba47d8b18d5786c87b165427467c9be232dba6daaeb014f514f3f48892e
font_01_sfnt_off000107bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107BD 10964 bytes
SHA-256: 0db9ac437c90cd5500599203b06b986aa17e218d2e9edc8292472ba49e7b00e9