Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf4a0519cac75f7d…

MALICIOUS

PDF

50.6 KB Created: 2021-03-25 21:21:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9aedead72b5a465041411cb08130ac3 SHA-1: d93ec59b2a566f0faa5c7e789dbc10c3c162a0e7 SHA-256: bf4a0519cac75f7de371389847d28ce749b2c3b7b9edcfa33ea82fc2a9bcca77
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document with an action trigger, typical of a phishing lure. It contains numerous external links, including a suspicious URL hosted on fokemale.ru, which likely serves as a landing page for malicious activity. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9369

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://fokemale.ru/aws?utm_term=devil+wears+prada+netflix+region
    • http://greatholl.com/kovogelosisaziwakusotid69htn.pdf
    • http://itawegan.fun/how_to_pass_coding_examm76cb.pdf
    • https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/toxamo.pdf
    • http://it50off.pro/keylab_61_mk2_manualrr3r1.pdf
    • http://yandex-dostav.ru/storm_cat_generator_spark_plug7hedm.pdf
    • https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/7465466.pdf
    • http://invitesistem.ru/behaviorist_theory_of_attachmenthtaqa.pdf
    • http://arenda-comp.space/532669706084og2y.pdf
    • http://com-servers.online/gapezokejorevuredagikabu1rc48.pdf
    • https://s3.amazonaws.com/kefefetafij/plantronics_voyager_headset_pairing.pdf
    • https://s3.amazonaws.com/jezekemunidup/puzisavik.pdf
    • https://s3.amazonaws.com/jixeremipet/excel_spreadsheet_keep_headings_while_scrolling.pdf
    • https://s3.amazonaws.com/geradi/what_generation_is_the_kindle_fire_7.pdf
    • https://uploads.strikinglycdn.com/files/915dfa76-edb4-444a-977a-e670494abca3/how_to_program_xfinity_xr11_remote_to_tv.pdf
    • http://jufosuliz.epizy.com/88961113985.pdf
    • http://tifuwonojize.epizy.com/nobalu.pdf
    • http://wovivujuxeko.epizy.com/jidetifuzavutaxasoge.pdf
    • https://uploads.strikinglycdn.com/files/8379873c-5d3c-4e39-875c-1127b0992780/will_cyberpunk_2077_be_next_gen.pdf
    • http://kevisokifo.rf.gd/50350089991.pdf
    • http://bakevojedu.epizy.com/aditya_hridaya_stotra_in_bengali.pdf

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