Malicious PDF — malware analysis report

Static analysis result for SHA-256 f16eca3380bb8f34…

MALICIOUS

PDF

67.7 KB Created: 2021-02-12 17:49:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fac8b5f7a1d3342b8ed7351835acd091 SHA-1: 0387384c762d796a83554ea5c85f0bea614415d1 SHA-256: f16eca3380bb8f34e291cfad14db60e8153b14024e0a1e7672b42f8eec1c8e47
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://jottigo.ru/wix?keyword=akribos+xxiv+owners+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420775/normal_600d27bcc5ddc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449627/normal_5fcb5a6413cb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404739/normal_5fcc79efaa183.pdfIn PDF document text
    • https://cdn.sqhk.co/kesusevuzep/hfklXhf/vr_ping_pong_pro_ps4_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wodigajamu/jdii6gj/51709397403.pdfIn PDF document text
    • https://roguraluvi.weebly.com/uploads/1/3/0/7/130776180/suliju.pdfIn PDF document text
    • https://dipabuxirakilat.weebly.com/uploads/1/3/1/0/131071076/sumoferizewoguwe.pdfIn PDF document text
    • https://jitedamanun.weebly.com/uploads/1/3/4/6/134627504/fafijudi.pdfIn PDF document text
    • http://excschool.ru/vidovujujedz5ftr.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/ifCMggm/classic_helicopter_game_mobile_phone.pdfIn PDF document text
    • http://cmb-societe.com/hunter_gummistvler_brn_strrelsesguidesfzq7.pdfIn PDF document text
    • http://closemaze.com/bosijobufedipasovedilixuw8vhxa.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/el_ser_y_el_tiempo_libroakas1.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/soromu.pdfIn PDF document text
    • http://vk-settings-change.online/awm_pubg_soundhoblt.pdfIn PDF document text
    • https://putesoborufo.weebly.com/uploads/1/3/0/8/130814126/dekadi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371543/normal_6010639698507.pdfIn PDF document text
    • http://lamovingcompany.com/28798102792s88pw.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_off0000cdc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC2 5244 bytes
SHA-256: 88dd4dd6ee7f03609910ece720d4b476e57126a85f48efef41d3608ad15107e6
font_01_sfnt_off0000df96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF96 10104 bytes
SHA-256: 4b9a860007fef96577663142506ae82d6a762dfaae30efbef13f5dd6e13c24a9