Malicious PDF — malware analysis report

Static analysis result for SHA-256 f130b47309ebe351…

MALICIOUS

PDF

73.3 KB Created: 2021-02-26 04:56:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ef092dbaa6b742eb21349a89ce7e3ec1 SHA-1: 230a5851b50f565cd6d7538474009c3bd6769282 SHA-256: f130b47309ebe3512e1d201c6d50657ae8ac11614476558e794e24358e4e1f95
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/award?keyword=they+say+i+say+templates+so+what+who+cares PDF link annotation
    • https://verebabivudasa.weebly.com/uploads/1/3/4/7/134771522/dopetawiku.pdfIn PDF document text
    • https://muxajugukeso.weebly.com/uploads/1/3/1/4/131453177/6601416.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/MgfBAii/brilliant_distinctions_coupon_october_2020.pdfIn PDF document text
    • https://fukituxepuronip.weebly.com/uploads/1/3/4/6/134605821/gukapimulakot.pdfIn PDF document text
    • http://fakixigulidol.mywebcommunity.org/ravokumupir.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/dr_brown_microwave_steriliser_dimensions.pdfIn PDF document text
    • http://orbitan.fun/91301788455y359w.pdfIn PDF document text
    • https://cdn.sqhk.co/fezavomol/fsmhjgc/90549952267.pdfIn PDF document text
    • http://winoraama.site/904796289788m90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402940/normal_600def574a4c7.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/jcggjii/horror_hospital_2_game_apkpure.pdfIn PDF document text
    • http://auto-agents.space/retevubotoxuwifiwatixunujqzq2.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/how_to_set_safety_first_ear_thermometer_to_fahrenheit.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/batoragubukepo/liters_and_milliliters_worksheets_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/economically_weaker_section_form_rajasthan.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_off0000e32b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32B 5316 bytes
SHA-256: 1c569c53904e162a3f6fff2d2d7e7b216729d10fedf363966cce6b1cdc3355a0
font_01_sfnt_off0000f52e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF52E 10256 bytes
SHA-256: aba526b9950ed7d4c6cb9c97591bdd8b34f1df9d467bd55d81f5c46aa7177141