Malicious PDF — malware analysis report

Static analysis result for SHA-256 480dd142a298a308…

MALICIOUS

PDF

76.3 KB Created: 2021-03-11 04:49:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 625bb069041018e36108f79d7ecbb18c SHA-1: a11f147fb3a46ef71a94fef537390d93aeccad82 SHA-256: 480dd142a298a308c852c3b27be33f305e57e3396f3d4ca46ea0def80f00e920
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many pointing to disposable hosting, suggesting a link farm or SEO spam operation. The ClamAV detection and ML classifier indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of external links implies an attempt to redirect the user to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9235

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 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
  • 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://baarspo.ru/award?keyword=hernia+diafragmatica+en+neonatos+pdf PDF link annotation
    • https://xovajuvomupug.weebly.com/uploads/1/3/0/7/130776021/kevurikisop-jupokemotox.pdfIn PDF document text
    • https://cdn.sqhk.co/tibapopedeka/hegeHjd/27740307629.pdfIn PDF document text
    • https://kazawiluk.weebly.com/uploads/1/3/5/3/135384823/budegazomer.pdfIn PDF document text
    • http://ligazilafibab.22web.org/sesorokexab.pdfIn PDF document text
    • https://bosijoputa.weebly.com/uploads/1/3/4/3/134317673/9459905.pdfIn PDF document text
    • https://wovupidej.weebly.com/uploads/1/3/4/6/134687137/xizifolamev_bosajusizevaloj_pijemiki.pdfIn PDF document text
    • https://peneredexamoje.weebly.com/uploads/1/3/1/4/131407565/detivobovo-nusamu-totegenaw-vivisip.pdfIn PDF document text
    • https://mukuriwubi.weebly.com/uploads/1/3/1/4/131483253/lirukufipamo_kikilisaw_bapesidatorobup_gawidakiza.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/bXKgdgh/ice_machine_not_making_ice_lg.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamujigip/e7pHMQc/90368806548.pdfIn PDF document text
    • https://menanolunum.weebly.com/uploads/1/3/4/7/134754058/xuvabofexovonun_jowunogapa_worelapisetem_kutileli.pdfIn PDF document text
    • https://vazanopika.weebly.com/uploads/1/3/4/8/134896022/regevo_soporarapa.pdfIn PDF document text
    • https://cdn.sqhk.co/powirafawume/2ifAhde/81471792308.pdfIn PDF document text
    • https://cdn.sqhk.co/patizuruf/JhhEIjj/cable_size_selection_chart_for_motors.pdfIn PDF document text
    • https://cdn.sqhk.co/vilonunufuk/pD6jcWf/4415197802.pdfIn PDF document text
    • https://pavofadibap.weebly.com/uploads/1/3/4/3/134370944/zevaretima.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/aMbij2a/89220190574.pdfIn PDF document text
    • https://genunilime.weebly.com/uploads/1/3/4/3/134344847/tubisirofefel.pdfIn PDF document text
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_d2d7cfe661a74a648910f578eb87ca06.pdf?index=trueIn PDF document text
    • http://regujivabi.rf.gd/ambient_weather_app_android.pdfIn PDF document text
    • http://zowujobosega.rf.gd/49388302765.pdfIn PDF document text
    • https://0ecef3a8-5193-4df1-8dcb-1b7dd0f2be2a.filesusr.com/ugd/e6092c_f6e8abe45bf34686b8e23de1fa56b0e4.pdf?index=trueIn PDF document text
    • http://kipixuge.epizy.com/98115224860.pdfIn PDF document text
    • http://sopikakerozobud.epizy.com/balazokipupow.pdfIn PDF document text

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