Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e19f55a4b1b65f5…

MALICIOUS

PDF

77.6 KB Created: 2021-06-06 10:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 01ff709ecf9820f77dab9a1e40f4899e SHA-1: f4bc7fe0a19df08df32c0e1caa033c5166b3292c SHA-256: 7e19f55a4b1b65f549054ee76186856d408ea46117552d6e7f474fdc8274c64e
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 0.6996

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://garglob.ru/pbw?utm_term=scope+of+forensic+anthropology+pdf PDF link annotation
    • https://xamelanaf.weebly.com/uploads/1/3/5/3/135331914/c52e88589da2.pdfIn PDF document text
    • https://nizikalod.weebly.com/uploads/1/3/4/6/134605229/bd275b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501656/normal_6058ed0e67c37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379384/normal_604a9527e2356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402938/normal_6030711d42d20.pdfIn PDF document text
    • https://toxerixefekivi.weebly.com/uploads/1/3/5/2/135296371/gumuxugej.pdfIn PDF document text
    • https://xumagatovonag.weebly.com/uploads/1/3/5/3/135312495/mumodobokegot-xetidafe-kinaxob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451744/normal_5ff4c1027c2e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478383/normal_603c77d52b9ff.pdfIn PDF document text
    • http://rupebaxo.pbworks.com/f/veluwenel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43b541c3-46ca-4a03-894d-db8256c1b4b8/power_wheels_dune_racer_reverse_not_working.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4ef27be-e615-466a-bc37-46024705ad77/old_murray_riding_lawn_mower_parts.pdfIn PDF document text
    • http://ganosidil.pbworks.com/f/telewebopagaboxikoloti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a4b1132-2ccd-4011-ae42-141a854496e7/zarum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53e8e779-3ff7-47ed-81f2-a236c1dccbc6/the_mortal_instruments_movie_series_cast.pdfIn PDF document text
    • http://kivotin.pbworks.com/f/what_does_a_finance_manager_do_at_car_dealership.pdfIn PDF document text
    • http://risoxef.pbworks.com/w/file/fetch/144455313/adding_and_subtracting_fractions_with_mixed_numbers_unlike_denominators.pdfIn PDF document text
    • http://joxupakager.pbworks.com/w/file/fetch/144668829/say_something_virtual_piano_sheets.pdfIn PDF document text
    • http://jufugoxula.pbworks.com/w/file/fetch/144622092/vexinog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2edaefd-6585-4f11-a34c-d1f2c0d58d06/gokuxujivik.pdfIn PDF document text
    • http://fotikeralo.pbworks.com/f/pylint_unable_to_import_flask.pdfIn PDF document text
    • http://bokibagaror.pbworks.com/f/edgenuity_english_10_unit_test_answers_sugar_changed_the_world.pdfIn PDF document text

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