Malicious PDF — malware analysis report

Static analysis result for SHA-256 37d87d537f048f2b…

MALICIOUS

PDF

47.6 KB Created: 2021-03-05 14:49:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cae52a729a6f73460be6ae6a2dd53012 SHA-1: de9b065890fd2bdddcbf9ad02965237ad68d33a4 SHA-256: 37d87d537f048f2b268b9d1ee81e51634a292b6f92a29eae2c336b92387ead9a
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The embedded URL `https://soxebez.ru/strik?utm_term=where+are+wayne+dalton+garage+doors+manufactured` and the presence of numerous other PDF links indicate a campaign to drive traffic to potentially malicious or ad-filled websites. The ML classifier and ClamAV detection further support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8572

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://soxebez.ru/strik?utm_term=where+are+wayne+dalton+garage+doors+manufactured PDF link annotation
    • https://cdn.sqhk.co/nuwobevina/9iggjz8/fetirexa.pdfIn PDF document text
    • https://cdn.sqhk.co/xinefegepe/gsggmko/9875375544.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/8jajegc/test_wifi_signal_strength_free_ipad.pdfIn PDF document text
    • https://cdn.sqhk.co/gufojakig/hugicCZ/extinction_coefficient_protein_calculator.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/mTjeJXt/35818647167.pdfIn PDF document text
    • http://gobigs.space/english_songs_club_mix_freenrd7j.pdfIn PDF document text
    • http://merishwheelrecords.com/dutatilotejogu1phis.pdfIn PDF document text
    • http://jumbochecker.com/comando_provinciale_carabinieri_torino_nucleo_informativol5jqq.pdfIn PDF document text
    • https://cb2d4818-2134-4ea5-ae57-1bc45cfc4292.filesusr.com/ugd/7e787c_5e7ec1c97d204acdabf7f0e6ef22b1ad.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/najipavez/3089128543.pdfIn PDF document text
    • https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_0c53bd6f63894b67bf79d53457d35fd9.pdf?index=trueIn PDF document text
    • http://lekaleramitogal.rf.gd/bobug.pdfIn PDF document text
    • https://0dd0cd87-80d3-4eb5-b9c6-73c43c3a6fca.filesusr.com/ugd/f0b6b3_1732a901f37b454dafc28eaf36fc2b41.pdf?index=trueIn PDF document text
    • https://5e3b32e6-a537-4a58-a531-ef303a468713.filesusr.com/ugd/120874_5c7976ce25954fa6a55d2be5bb73eb6a.pdf?index=trueIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_5e4625ef2a4e4f2994bc3b03e12c1d6f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/farmacologia_antiemeticos.pdfIn PDF document text
    • http://rudurugineme.epizy.com/use_my_phone_as_a_remote_control.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/wrong_turn_2_movie_in_tamil.pdfIn PDF document text
    • https://b4e79a3f-0083-4b26-8056-4fe87fb46dfd.filesusr.com/ugd/332c1b_3d6d6420c464411bba95e08b1eecf9a2.pdf?index=trueIn PDF document text

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