Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1f7b9daa8632b8…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 10:35:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b8d9913e7a75055071dff55ce904e7d5 SHA-1: 721215a99c395bf6e62596bf7f49073920d65356 SHA-256: 7b1f7b9daa8632b82bb6d004bb72d6837056e24ff9b40726ab64948d291f2006
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=what+are+some+example+of+metaphor+in+poem PDF link annotation
    • https://mosazipabefo.weebly.com/uploads/1/3/4/7/134735261/bfbb52ff9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481528/normal_6008edc02cbc0.pdfIn PDF document text
    • http://lnstagramcopyrightservices.org/paferixagefoza8ekth.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455405/normal_5fdb185dad921.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/CH5wjjY/corporate_strategy_definition_investopedia.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/jh6gehd/rummikub_online_unblocked.pdfIn PDF document text
    • https://benipotuwazel.weebly.com/uploads/1/3/4/4/134445242/tonezupes.pdfIn PDF document text
    • http://getdouche.xyz/a_christmas_love_story_full_cast_2019h8ze1.pdfIn PDF document text
    • https://tifixexeruwa.weebly.com/uploads/1/3/2/6/132682204/43c59aafa.pdfIn PDF document text
    • http://bupro.asia/astral_travel_meditation_guideds81sp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424400/normal_5fffb4ec76907.pdfIn PDF document text
    • https://cdn.sqhk.co/nawakema/ibH40f1/weeds_cast_season_6_episode_8.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/69225445717.pdfIn PDF document text
    • https://zoditivifu.weebly.com/uploads/1/3/4/3/134316547/4a093660e1cc0e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5ffcf066ccec6.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/mogedozara/nobozixozatipejonawixol.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/59994998165.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/78265714941.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/homedics_cool_mist_ultrasonic_top-fill_humidifier_with_aromatherapy_reviews.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_off0000e0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D0 5220 bytes
SHA-256: 6a346cd521f7494ec9835daa3de75e2db5d024818ac166439b2902207e93a17b
font_01_sfnt_off0000f279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF279 10308 bytes
SHA-256: 528c60d9eaf48d9977c2e9279b7da12c2f41dcfd113fdad7a697722b7521e464