Malicious PDF — malware analysis report

Static analysis result for SHA-256 677c7c804a0b7c76…

MALICIOUS

PDF

56.8 KB Created: 2021-02-28 12:28:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 9279ec7f2903b107f6e4dcc0e15267e7 SHA-1: 87b4080ca161930a2689da50139480ad64eb92df SHA-256: 677c7c804a0b7c768b41595c44cb9e838f54515dd5cd37861b7218702d96ee23
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are part of a link farm designed to manipulate search engine results. The document body, though heavily obfuscated, appears to be a lure related to technical support, aiming to direct users to malicious websites. The presence of a PDF_SEO_LINK_FARM heuristic and multiple unknown reputation URLs strongly suggests a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9772

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 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.
  • 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://bologen.ru/award?keyword=how+do+i+connect+my+phone+to+my+hp+deskjet+2540 PDF link annotation
    • https://pabafuneb.weebly.com/uploads/1/3/1/6/131607185/fuwemuvo.pdfIn PDF document text
    • http://sks-expertiza.ru/radio_shack_weather_alert_scanner_manual6054c.pdfIn PDF document text
    • http://fastpeysistem.online/death_invasion_survival_mod_apk_1._0._51mmghu.pdfIn PDF document text
    • https://sugowixo.weebly.com/uploads/1/3/4/5/134588459/d44c45ab2bb52.pdfIn PDF document text
    • https://nulebuset.weebly.com/uploads/1/3/1/4/131411431/94defb41.pdfIn PDF document text
    • https://masezinonorokun.weebly.com/uploads/1/3/4/6/134685416/9893344.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/5728904.pdfIn PDF document text
    • http://totudini.iblogger.org/pisesepavuvupedivube.pdfIn PDF document text
    • http://tisurejafin.22web.org/79366067546.pdfIn PDF document text
    • http://alcexpress3.xyz/rockabye_song_free_pagalworldbqniv.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/larissa_90_day_fiance_police_report.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/firefox_64_bit_for_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/64000212306.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/8435725313.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/sport_psychology_goal_setting_worksheet.pdfIn PDF document text
    • http://lebodevafetag.epizy.com/what_are_all_the_unforgivable_sins.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/pidog.pdfIn PDF document text
    • http://kuviwobabevi.epizy.com/zoseririgiwukeni.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/castlevania_gba_roms_free.pdfIn PDF document text

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