Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dce83f6b9fe2091…

MALICIOUS

PDF

65.3 KB Created: 2021-02-12 02:38:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2cf50e61f675faff3086d3e1466cc11b SHA-1: f3b8a22525e5d935e79f3208faae168b33f19f97 SHA-256: 0dce83f6b9fe209154f429bacd9e6458484623b764a8fccbc87163d2efd482d9
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://jacksth.ru/wix?keyword=20x8x10+american+racer+tires PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452588/normal_60146b2f663b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415537/normal_60229638d66c2.pdfIn PDF document text
    • https://cdn.sqhk.co/nupozifulija/bXTghhd/spinal_tap_quotes_imdb.pdfIn PDF document text
    • https://ronunafo.weebly.com/uploads/1/3/1/8/131856498/3345565.pdfIn PDF document text
    • https://nawivavunof.weebly.com/uploads/1/3/4/6/134669961/babidewekok.pdfIn PDF document text
    • https://cdn.sqhk.co/sewiboveso/3ihgLig/40570624217.pdfIn PDF document text
    • https://cdn.sqhk.co/xisiwuba/heiijgJ/webtoon_promo_codes_oct_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/vugomupuzisa/fnGejgu/joramugidumiken.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368218/normal_5ffc33a2e71fa.pdfIn PDF document text
    • https://fefizilev.weebly.com/uploads/1/3/1/4/131453506/8810769.pdfIn PDF document text
    • https://devuxitimon.weebly.com/uploads/1/3/4/5/134596282/4471588.pdfIn PDF document text
    • https://cdn.sqhk.co/sizafutito/bGjxgcE/xesuvuwiguraxukowezoreta.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465133/normal_5fff6e6dc5fab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_601a6e3f2b885.pdfIn PDF document text
    • https://ramasiwo.weebly.com/uploads/1/3/5/3/135390431/fumubopopepe.pdfIn PDF document text
    • https://wojuguzibuliru.weebly.com/uploads/1/3/4/8/134896427/ramidada_rutusimonisitan_savarafanujoder_gepuloxiravu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gotakedadonere.rf.gd/kaspersky_battery_life_saver_booster_apk.pdfIn PDF document text
    • http://vugapadilubokis.epizy.com/lobizafuvumefem.pdfIn PDF document text
    • http://lasesesavobopom.rf.gd/acca_f8_december_2013_answers.pdfIn PDF document text
    • http://nopatiget.epizy.com/android_hdmi_stick_fr_tv.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_off0000c22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC22A 5404 bytes
SHA-256: 6f8c3a2fe29f5ce9f09c1880a6fd1096527a1b80b1aa3002468b8f9ee31b8a6e
font_01_sfnt_off0000d477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD477 10396 bytes
SHA-256: d2d94a62f9d9c95da2d0ffe138e4d67b6d7341bc714b4fca9a176c3fd51cf0e5

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