Malicious PDF — malware analysis report

Static analysis result for SHA-256 978c69ef22b3fe52…

MALICIOUS

PDF

51.6 KB Created: 2021-03-24 17:20:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1aba5c83ec072cf040a43a1fced152f SHA-1: 30bfeb14a34231862734f892850dc26aeac83199 SHA-256: 978c69ef22b3fe52a38dcef980345dfb4e9441eb7a6085e705388ed718859893
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing campaigns. It contains numerous external links hosted on disposable domains, suggesting an attempt to redirect users to malicious sites or download further malware. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7339

Heuristics 4

  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 51 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/aws?utm_term=nordictrack+audiostrider+990+pro+weight
    • http://diniguwoweka.iblogger.org/against_medical_advice_template.pdf
    • http://lezesujis.22web.org/58438481749.pdf
    • http://loduwij.scienceontheweb.net/how_long_does_it_take_to_become_a_vet_tech_in_florida.pdf
    • https://lokamafurixese.weebly.com/uploads/1/3/4/5/134509290/kimanafanu.pdf
    • https://fosisejabevenot.weebly.com/uploads/1/3/5/3/135398983/3274699.pdf
    • https://fawiwusum.weebly.com/uploads/1/3/1/6/131637021/jutip.pdf
    • https://rizedugo.weebly.com/uploads/1/3/1/4/131453818/silulu-migogovezideji-jatuk-pimometigiga.pdf
    • http://gukapeb.iblogger.org/fovujavudijom.pdf
    • https://cdn-cms.f-static.net/uploads/4365589/normal_602eb3ac71aa4.pdf
    • https://cdn-cms.f-static.net/uploads/4494883/normal_60275e3e3f7c5.pdf
    • http://lemafesopeposuz.mywebcommunity.org/73121633371.pdf
    • http://vajamerafimal.iblogger.org/xisimozufusofarugotoro.pdf
    • http://lajafago.medianewsonline.com/nisamosobojewigosinev.pdf
    • http://zodimasar.mypressonline.com/aleatha_romig_cunning.pdf
    • http://gomosivuniku.22web.org/73152950654.pdf
    • https://cdn-cms.f-static.net/uploads/4419433/normal_600f2dc7703bf.pdf
    • http://zimuwujirosi.rf.gd/2_puc_biology_important_questions.pdf
    • http://tenurusimuxu.epizy.com/texiresexapuwavorokak.pdf
    • http://dasubaweno.rf.gd/grey_s_anatomy_episode_guide_2018.pdf
    • http://batapijas.myartsonline.com/68247369731.pdf

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