Malicious PDF — malware analysis report

Static analysis result for SHA-256 768c807e60dbe8c4…

MALICIOUS

PDF

72.2 KB Created: 2021-02-27 06:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ddea48f3738476593eb0bf4aef0b19a3 SHA-1: cb381c8bef1bfc215008f3472ef4287dc5a8d332 SHA-256: 768c807e60dbe8c467f61f71032537609b9eecfd8bda0d69f62b3eabd63b68fa
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://mezovuduw.ru/award?keyword=stewart+precalculus+7th+edition+solutions+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465559/normal_5fd7e69ef1f54.pdfIn PDF document text
    • http://kajopikika.22web.org/is_minnesota_renaissance_festival_cancelled.pdfIn PDF document text
    • https://duketexu.weebly.com/uploads/1/3/4/7/134725944/3283841.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/ray_ban_black_aviator_sunglasses_price_india.pdfIn PDF document text
    • http://nedabemimekoz.iblogger.org/39712830489.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/37955101348.pdfIn PDF document text
    • http://bududusawuwepi.iblogger.org/how_much_is_a_used_wii_worth_at_gamestop.pdfIn PDF document text
    • http://xejepurefe.scienceontheweb.net/56389964258.pdfIn PDF document text
    • https://zudasejavezumuj.weebly.com/uploads/1/3/4/0/134017640/c804c7ded.pdfIn PDF document text
    • https://likufuzojelawaf.weebly.com/uploads/1/3/5/2/135298946/5e302ade06041.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/solilonisodozomijon.pdfIn PDF document text
    • https://jinozeposejide.weebly.com/uploads/1/3/1/4/131453810/5836929.pdfIn PDF document text
    • http://degitowexara.iblogger.org/wedding_anniversary_images_with_name.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kepofif.onlinewebshop.net/char_broil_electric_bbq_red.pdfIn PDF document text
    • http://judenagu.epizy.com/dynasty_sheet_music.pdfIn PDF document text
    • http://zalaxorenisev.epizy.com/bjarne_stroustrup_c.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_off0000d96e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96E 5672 bytes
SHA-256: 4113838c64818b596c4b6fe258c5f5d47be9c89b7dbc071dbc7d7de88166dc1d
font_01_sfnt_off0000ecb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB1 10904 bytes
SHA-256: 98ea6fbbdc63d52816c6ad7f50f6df2b6d8f893e2d20b40cd45a500cec1853bb