Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3484d6ed51e6bd2…

MALICIOUS

PDF

117.9 KB Created: 2021-06-05 17:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: cca62de85d92b0a8225f39bbe8742389 SHA-1: ec407cfacc7204e52219aa79d1497ed541e75702 SHA-256: a3484d6ed51e6bd22c05f8ff6846940be0e1413bec7b275abc65332f18f9a227
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are hosted on disposable domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8876

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://pixomot.ru/pbw?utm_term=super+smash+bros+brawl+project+m+download+dolphin PDF link annotation
    • https://mifepomaxa.weebly.com/uploads/1/3/4/8/134897651/9871788.pdfIn PDF document text
    • https://potukogigiso.weebly.com/uploads/1/3/1/4/131407148/pimuvogitiseg-jelotejakamoja-zapemi-birowobem.pdfIn PDF document text
    • https://wabalolosezuluf.weebly.com/uploads/1/3/4/4/134462862/nadazalevi-fogenefufonufe-lovexa.pdfIn PDF document text
    • https://bamufikike.weebly.com/uploads/1/3/1/6/131606241/5594206.pdfIn PDF document text
    • https://nepazumikad.weebly.com/uploads/1/3/5/9/135958915/1323088.pdfIn PDF document text
    • https://luruxelu.weebly.com/uploads/1/3/2/6/132682974/0fea3ba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e800176-5955-4871-9d5c-7cff6839f3cc/best_buy_geek_squad_protection_laptop.pdfIn PDF document text
    • http://werinenimuta.pbworks.com/f/how_to_play_youtube_on_android_auto_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/690e1d10-d426-4efd-b02b-d62be2ac04e6/cursive_writing_capital_and_small_letters_a_to_z.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/239c5870-5da1-423a-904c-5706c831fed0/rowosunuxajamupatagab.pdfIn PDF document text
    • http://zepupifob.pbworks.com/f/87350883162.pdfIn PDF document text
    • http://jozeluwofe.pbworks.com/w/file/fetch/144418674/codigo_de_activacion_para_movavi_video_editor_15.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f3beb54-b8ff-46b7-aaf5-6d369ec96edd/how_many_calories_in_carvel_soft_serve.pdfIn PDF document text
    • http://jujupaw.pbworks.com/w/file/fetch/144631017/stanley_fatmax_700_charging_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfbc6f9a-17da-4a6c-b02e-48d0fef777ec/najaxumagalor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf202804-2bfb-4d17-8965-8741bff83f14/does_t_mobile_offer_a_free_signal_booster.pdfIn PDF document text
    • http://mujefapufefi.pbworks.com/w/file/fetch/144515637/el_monte_de_nuestro_alimento.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1679f154-f10a-40a8-90a8-8ad53f1c3d09/times_table_chart_up_to_30.pdfIn PDF document text
    • http://fuzujufod.pbworks.com/w/file/fetch/144655827/19355390690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b80bdd40-43bc-4930-a5e8-9141c3f888aa/jegokemagozij.pdfIn PDF document text

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