Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac5e90a3644a0e13…

MALICIOUS

PDF

70.9 KB Created: 2021-03-02 02:37:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 989228cec226d25cfd4d59aeb1ef4cbc SHA-1: af180306045dd581157d6ca78fa77b7cebfe48bd SHA-256: ac5e90a3644a0e13fddb5267c05c382317c4857ce7d76d853261b791af186516
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=mistakes+were+made+but+not+by+me+pdf+download In PDF document text
    • http://erethiztzj.space/where_can_i_find_my_kitchenaid_model_numberxin61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427273/normal_5fc7b2195f011.pdfIn PDF document text
    • https://videxopejevis.weebly.com/uploads/1/3/5/3/135333638/gemesopivafa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485930/normal_6019a1b07385f.pdfIn PDF document text
    • https://guvorike.weebly.com/uploads/1/3/4/2/134266232/dd9af.pdfIn PDF document text
    • https://newavutija.weebly.com/uploads/1/3/1/8/131871734/zaberazaguwozirarake.pdfIn PDF document text
    • https://rumodabumuxe.weebly.com/uploads/1/3/1/8/131857513/susovopib_ripalasali_lixikudobom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_60001337aa746.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423750/normal_60186d8d2f210.pdfIn PDF document text
    • https://gozerezujokosas.weebly.com/uploads/1/3/4/8/134856803/b9c3a277666570c.pdfIn PDF document text
    • http://relax35.ru/greenery_wedding_program_template2rtgz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462708/normal_603a24dca21ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416790/normal_5fd795d3749f1.pdfIn PDF document text
    • http://usecabinets.xyz/air_force_1_high_top_with_strapjag9w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473047/normal_6003437f836c1.pdfIn PDF document text
    • http://mybiol.site/grabadora_sony_icd-px440_manualaupve.pdfIn PDF document text
    • https://lanokonemuke.weebly.com/uploads/1/3/5/3/135309959/82efe6d3b.pdfIn PDF document text
    • https://dusaxufar.weebly.com/uploads/1/3/5/3/135327992/8798438.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/zomuzigo/mejosenugudadisilejokuko.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/plantronics_backbeat_fit_2100_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/what_is_keystone_species_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/infection_control_guidelines_for_childcare_settings.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_off0000d741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD741 5592 bytes
SHA-256: ebd083d71db88dac7657d620616491d0d2d30073e5cb4e86db371cb861f65dba
font_01_sfnt_off0000ea4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4C 10540 bytes
SHA-256: 4e3519cc8da8e83540ea489655778e54e4f6ac198ffacdacc40ac0fc34282e35