Malicious PDF — malware analysis report

Static analysis result for SHA-256 d09ed766f588dffd…

MALICIOUS

PDF

84.3 KB Created: 2021-04-04 18:58:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 2e7a71246d72d16c1fc5f2dad47089b9 SHA-1: 994c050fbdb5f4c3481154cc611b42a782ce57e2 SHA-256: d09ed766f588dffd2c0ef60e65f41b88ed6e9dba0aac985efa67a2b234f6d9ba
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many hosted on disposable domains, which is characteristic of a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution through these linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9394

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://zajinet.ru/award?keyword=borderline+personality+pdf PDF link annotation
    • https://cdn.sqhk.co/pekobenew/hcjh7jg/7453778504.pdfIn PDF document text
    • https://tadomowiwelam.weebly.com/uploads/1/3/4/7/134744739/jitedepujefe.pdfIn PDF document text
    • https://gujinaberukigav.weebly.com/uploads/1/3/1/8/131856979/1391249.pdfIn PDF document text
    • https://vobogokofudukig.weebly.com/uploads/1/3/0/7/130775751/5846084.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/ihihidZ/66532231104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469626/normal_60607b52248e3.pdfIn PDF document text
    • https://cdn.sqhk.co/mawedabe/VxOQTGz/wicked_wolves_ruka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480744/normal_603b05ec2679c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468261/normal_5ffc631a5e2e5.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/fepegusadobifugekak.pdfIn PDF document text
    • https://cdn.sqhk.co/joxopejufito/hapRa4h/92296354462.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/ifKbhgW/property_auction_liverpool_town_hall.pdfIn PDF document text
    • http://megopoveguvujal.medianewsonline.com/budesonida_presentacion.pdfIn PDF document text
    • http://dodajavux.scienceontheweb.net/atomic_design_ebook.pdfIn PDF document text
    • https://cdn.sqhk.co/ferorigife/LUhdrjh/nostalgia_cotton_candy_maker_how_to_use.pdfIn PDF document text
    • https://cdn.sqhk.co/nawamuzimosu/PNyhjC9/hold_my_hand_akon_michael_jackson.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/chocolate_tamil_full_movie_in_tamilrockers.pdfIn PDF document text
    • http://sagoralezerelo.onlinewebshop.net/57624112636.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/aankh_mare_simba_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/application_for_citizenship_minor_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/rise_of_skywalker_running_time.pdfIn PDF document text

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