Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dc9447b67cdf868…

MALICIOUS

PDF

65.9 KB Created: 2021-02-13 19:53:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a15c2a231a27f9e0754965649c6a1a2c SHA-1: 18d6e798ec1eb90310b92e6f1526710ee2477ea4 SHA-256: 5dc9447b67cdf868126a655302a7e23c4076265630a43912a32d18df7679ad83
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://seumenha.ru/wix?keyword=2011+g6r+manual PDF link annotation
    • https://cdn.sqhk.co/sidogorego/jjjaMVY/ria_money_transfer_customer_service_pakistan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425727/normal_5fd62caf9f73a.pdfIn PDF document text
    • https://cdn.sqhk.co/zetoxezoza/z6whbau/krieg_gegen_titanen.pdfIn PDF document text
    • https://cdn.sqhk.co/notenirikev/J0cGeha/tinatumawusepunodil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403143/normal_5ff635bde043c.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/hqhihe7/viwuwumopebu.pdfIn PDF document text
    • https://kiwitelovig.weebly.com/uploads/1/3/4/3/134358902/fodajigoj.pdfIn PDF document text
    • https://losarofimet.weebly.com/uploads/1/3/1/3/131384333/jepesagewiloxuw-kubudovofavu-bokirinojazamux-tojifobexofa.pdfIn PDF document text
    • https://cdn.sqhk.co/pijujuweg/hfhXhjL/tafheem_ul_quran_malayalam.pdfIn PDF document text
    • https://bujasosepamus.weebly.com/uploads/1/3/4/6/134626994/ba725fc0.pdfIn PDF document text
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/bf02c.pdfIn PDF document text
    • https://sozizupisez.weebly.com/uploads/1/3/1/8/131872239/778b9692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379854/normal_60279b82a8fdc.pdfIn PDF document text
    • https://cdn.sqhk.co/tabakotodi/Kgjhigh/gakurakisidaje.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/gezejoputiwinu/sarapig.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/accounts_payable_ledger_format_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/vazidegax.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/76489940656.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_off0000c5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D6 5212 bytes
SHA-256: b7752428b205311c4a8ec7e340b83c5cbf1349cffc0e7eac5f12ec6adcfe2915
font_01_sfnt_off0000d77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77F 10332 bytes
SHA-256: b9a04b21e87205a43691bcc61642a58ca680cb6a8e431786da2704360cf04808