Malicious PDF — malware analysis report

Static analysis result for SHA-256 976e39894cc85e29…

MALICIOUS

PDF

67.2 KB Created: 2021-02-22 17:19:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a7a5becd698ad87e8d5a27cfc97d8f96 SHA-1: 28020a41f484ecb692c949011c2c876087449a62 SHA-256: 976e39894cc85e29454a844ccc1fd900d26258ea74cc3324aeabd3da57a3c208
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://bologen.ru/wix?keyword=scar+tissue+pdf+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/bupewazadufa/KCbhbia/20822196013.pdfIn PDF document text
    • http://steel-lipetsk.ru/22630775213fmnzx.pdfIn PDF document text
    • http://rawenspant.online/fijorsulzu.pdfIn PDF document text
    • http://menformula.xyz/100229490569abkn.pdfIn PDF document text
    • http://pixxel.life/jasizopegapametarltkx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427785/normal_5ffc346bed3a0.pdfIn PDF document text
    • http://bigchance.pw/anime_tv_for_android_phone65b1z.pdfIn PDF document text
    • http://devlp.design/908176560225iqg3.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/J9kpgc0/68266966435.pdfIn PDF document text
    • http://biolinkus.me/pentagon_shape_how_many_anglesxe1td.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443337/normal_5fd6854addaba.pdfIn PDF document text
    • https://pimetukuke.weebly.com/uploads/1/3/4/0/134017259/8432939.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/gghdhiw/pop_up_picture_cube_with_confetti.pdfIn PDF document text
    • https://nunatazireru.weebly.com/uploads/1/3/4/6/134698050/9925160.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/jidagafinuxesu/16392632767.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/caesarstone_fabrication_health_protection_guide.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_off0000c9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9BF 5464 bytes
SHA-256: f9d238ac95ad10702209f8ccb55c79426f33b1eeb9757774b2436cbfd94d5dfa
font_01_sfnt_off0000dc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC28 10060 bytes
SHA-256: 3733e49e8e8111fc95c376e03fef239c033a6c21a100433bd13ee97df18a463e