Malicious PDF — malware analysis report

Static analysis result for SHA-256 67d07c4ff0ffba30…

MALICIOUS

PDF

59.6 KB Created: 2021-10-08 16:21:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 24b276b385e2b7db8e81ed0dedbca790 SHA-1: df320b1045bc5dd852b01ee80474b5e01c88908b SHA-256: 67d07c4ff0ffba3082298069dcc96840d332d005d7a0a4175b433b53b58c352e
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URIs and is identified as a link farm hosted on disposable domains, indicating an attempt to redirect users to malicious content. The presence of external URIs and the nature of the heuristics suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5305

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://needlugs.com/userfiles/files/kefagarusoguwoxifu.pdf In PDF document text
    • http://saiprogetti.net/userfiles/files/safasejowasedarozilisam.pdfIn PDF document text
    • http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/92700375503.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/22490804081.pdfIn PDF document text
    • https://akonis.ch/userfiles/files/77365254837.pdfIn PDF document text
    • http://wamer.org/userfiles/file/97424640015.pdfIn PDF document text
    • http://cherriestattoo.com/ckfinder/userfiles/files/58225451127.pdfIn PDF document text
    • http://rivebistro.net/ckfinder/userfiles/files/pozedod.pdfIn PDF document text
    • http://unionnutritech.com/upload/files/lojime.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148e46faaf22---puripiri.pdfPDF link annotation
    • http://veganogle.es/uploads/ckfinder/files/46463678609.pdfIn PDF document text
    • http://townofwinslowin.com/flash/townofwinslowin.com/file/gotefuvuk.pdfIn PDF document text
    • http://asvpp.fr/pdf/75232685110.pdfIn PDF document text
    • http://www.neoneofitou.com/ckfinder/userfiles/files/75292143042.pdfIn PDF document text
    • https://biographiewerkstatt-singer.de/userfiles/file/33403769664.pdfIn PDF document text
    • http://redigonda.it/userfiles/files/mitelujurububukozadavow.pdfIn PDF document text
    • https://pansky.ru/UserFiles/File/75597753932.pdfIn PDF document text
    • http://s2group.pl/userfiles/file/merigiwokewa.pdfIn PDF document text
    • https://sieuthigo.vn/upload/ck/files/xevuvebetavezudos.pdfIn PDF document text
    • http://miraesusan.com/ckupload/files/vozezixefegafexokelewili.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161376c8f1f604---gixowumumumafajaro.pdfIn PDF document text
    • https://fetogram.ir/images/upload/files/silulus.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161308ab765e96---20133277051.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=easy+face+drawingPDF link annotation

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