Malicious PDF — malware analysis report

Static analysis result for SHA-256 01db3159762c036a…

MALICIOUS

PDF

48.0 KB Created: 2021-03-30 22:46:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 05c0703c652134d158b03226b2187739 SHA-1: a063fab6f173ecbf728a337b7eaf3fdefddd24c7 SHA-256: 01db3159762c036a97bc8b2be8b07bd98a38b5b5ac8a79e9b5e6542942f4dfa3
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7623

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://jumiwimov.ru/strik?utm_term=why+does+my+torpedo+heater+keep+shutting+off PDF link annotation
    • https://cdn.sqhk.co/fegadosijete/oDVhcMW/35336473514.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/idiixhg/strawberry_cheesecake_ice_cream_recipe_thermomix.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/cmjfq3p/office_space_2_chicks_quote.pdfIn PDF document text
    • https://cdn.sqhk.co/juvebuzizej/lhfPghl/xexegitilufirikukiwivis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490273/normal_5fe6345131d9e.pdfIn PDF document text
    • https://cdn.sqhk.co/samofetob/jgibidP/89058435040.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_6056708e3213b.pdfIn PDF document text
    • https://cdn.sqhk.co/vixonafom/UO9u7M2/jeep_commander_grill_guard.pdfIn PDF document text
    • https://cdn.sqhk.co/lewikokezina/bA6gcpq/snake_river_farms_wagyu_zabuton.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378170/normal_605b18d84f8ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383566/normal_5fe44161774a1.pdfIn PDF document text
    • http://dfds.in/kaplan_mcat_study_schedule_6_monthsg1tjl.pdfIn PDF document text
    • http://pocki.top/android_x86_installer_exe_fileu7ouz.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/ibfiaRa/hilarious_guy_halloween_costumes.pdfIn PDF document text
    • https://cdn.sqhk.co/govuzupikiwe/GehjL7r/99043293258.pdfIn PDF document text
    • http://it50discount.pro/kenmore_electric_range_790_specificationsnb1yu.pdfIn PDF document text
    • https://88966db1-4a83-4446-b941-f65022a6235f.filesusr.com/ugd/928e0f_09ab4ebdbef3439b8d99014063d239dd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lopeteb/geographical_features_of_the_philippines_landform.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/negebowipebipowos.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/topidemasepakesijotum.pdfIn PDF document text
    • https://88211235-bf86-4d40-a6ec-a052db2f682e.filesusr.com/ugd/94e5ef_18b05057ad654e37a23e17eddcfdbd84.pdf?index=trueIn PDF document text
    • https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_83aad3e521de4779b96b821e2c55982b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/basic_electronics_books_free.pdfIn PDF document text

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