Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e8e7b6309d36ca0…

MALICIOUS

PDF

45.7 KB Created: 2021-04-06 13:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 5599eb886f25cba0108aaa5ee9bb1f1d SHA-1: e82eb1b0371814e91873182c8cb05a90eb17c2eb SHA-256: 5e8e7b6309d36ca043800975ef8bc94bd55ea83cfe857f5209314325c297bcfe
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7134

Heuristics 4

  • 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 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://gimoguvi.ru/award?keyword=all+about+me+worksheet+pdf+kindergarten PDF link annotation
    • http://ch-bewertung-2888.xyz/51570128317w6rzv.pdfIn PDF document text
    • http://shop-you.xyz/tratamento_da_anemia_megaloblasticakzdl7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412415/normal_5ff0f719c5141.pdfIn PDF document text
    • http://begemotiks.fun/how_to_find_out_a_grave_plotf23vq.pdfIn PDF document text
    • http://antonioit.space/paxuxegazibebupipojuruvod27rb4.pdfIn PDF document text
    • http://sajiwurejedetu.sportsontheweb.net/motifi.pdfIn PDF document text
    • http://erse.xyz/kisepulepofg2px.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503033/normal_60323df391b95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382406/normal_600216a239581.pdfIn PDF document text
    • http://genusadnlo.space/how_to_reset_a_slingbox_500lodat.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://card2card.live/how_to_set_temperature_on_whirlpool_water_heatersld2b.pdfIn PDF document text
    • http://wuxetij.mypressonline.com/basic_grammar_punctuation_rules.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454673/normal_6037e904c3958.pdfIn PDF document text
    • https://4e4301d6-cc9a-4939-960a-6b497c1efea6.filesusr.com/ugd/d78803_71c65250b5b5415da9d9677037a110b8.pdf?index=trueIn PDF document text
    • https://182222a4-a7a4-434f-839c-7103b506edb5.filesusr.com/ugd/224a67_6cee6336a5c64255aac10dff93921edd.pdf?index=trueIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/ps_i_still_love_you_film_cast.pdfIn PDF document text
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_790768b3adef4b61b240eefd9e26ab0b.pdf?index=trueIn PDF document text
    • https://e82ff0bd-cb1a-4782-8b92-0a0fb7657660.filesusr.com/ugd/d17951_ae71b181e2364cf299ccf4c403abef6b.pdf?index=trueIn PDF document text
    • https://3f740848-0e57-4b51-8596-564812021bec.filesusr.com/ugd/cbe17c_9955846dd55545a6832f3db657bc669e.pdf?index=trueIn PDF document text
    • https://55d63786-14d6-44de-84d0-33f1fb383c44.filesusr.com/ugd/45fd81_7ddb9c9d55bd435f9f65f049c39dcee2.pdf?index=trueIn PDF document text
    • https://1ffb5d6c-d890-49e0-9b87-dc10fbfa49e2.filesusr.com/ugd/8bc2a6_a27fbfa0a17f4a9ca65ee2c66a82f7a1.pdf?index=trueIn PDF document text
    • https://8d90b851-447f-4cfc-ac95-1e867b71b983.filesusr.com/ugd/b371d9_dd9bfe0c7841456fa210a905e0cb3ff0.pdf?index=trueIn PDF document text

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