Malicious PDF — malware analysis report

Static analysis result for SHA-256 b30bda5f380e3215…

MALICIOUS

PDF

66.4 KB Created: 2021-02-23 09:43:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e95e2cb346e9ca83f04c58313222ba40 SHA-1: 69588b0ef82bb76745a1f668f89362f0778bd633 SHA-256: b30bda5f380e321584354f1f8f4a530c50f56d311e91c8504cae13acd5714192
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wix?keyword=your+health+today+6th+edition+pdf+free+download PDF link annotation
    • https://cdn.sqhk.co/tozegatopaxu/Djeb9gj/69740116382.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/yhcgdii/24748879672.pdfIn PDF document text
    • https://sizomejuxitiz.weebly.com/uploads/1/3/4/7/134748976/sirobi-mefezotevezuro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465548/normal_601803cb7901f.pdfIn PDF document text
    • https://dezilitew.weebly.com/uploads/1/3/4/7/134728488/kanugapexepefa.pdfIn PDF document text
    • https://cdn.sqhk.co/jakibefivi/dyiiihW/rubakomabowawetudutotug.pdfIn PDF document text
    • http://devlp.design/liloburenejajezofokuvaje78c4l.pdfIn PDF document text
    • http://centerbluebadge.com/wrong_turn_2_tamil_dubbed_freehcjsc.pdfIn PDF document text
    • https://xoxovumalojiru.weebly.com/uploads/1/3/0/8/130874224/remesa_sefeluxodu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485176/normal_60233cf7b108b.pdfIn PDF document text
    • https://giminefimir.weebly.com/uploads/1/3/0/9/130969553/7861481.pdfIn PDF document text
    • https://bumogekatagod.weebly.com/uploads/1/3/0/7/130776321/fibagamav_ximabu_datedizizaz_pipexama.pdfIn PDF document text
    • https://cdn.sqhk.co/moxoxitij/hzcXJ1S/59335640173.pdfIn PDF document text
    • http://itwomen.space/93147843897x8h07.pdfIn PDF document text
    • http://b4shop.icu/lorajadusesuzowil1t0mh.pdfIn PDF document text
    • https://cdn.sqhk.co/vefemenivu/c1dM7ia/kick_the_buddy_free_download_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410462/normal_5fd37c45d3408.pdfIn PDF document text
    • https://cdn.sqhk.co/migukosodaza/RViiggQ/roku_tv_deals_black_friday_2020.pdfIn PDF document text
    • https://govuvafokixer.weebly.com/uploads/1/3/1/6/131607022/purabemufozawaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_60340053a2fe4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c76b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC76B 5260 bytes
SHA-256: 767960827a9b62b3e099e95c88aaa9d7c8430bcb262f4d36a8b8db216f234b26
font_01_sfnt_off0000d960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD960 10144 bytes
SHA-256: 9efebcfd2c5fad9f14a8dbc67891f1800465ec0f3455c93267f0e9ecad967e15

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