Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b0847a5bd298ff…

MALICIOUS

PDF

50.3 KB Created: 2021-03-30 10:29:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84bc4c584072cabc106a89d231dd00c6 SHA-1: 80f0c123dafd0dd1006bc736ad35287ad1d688be SHA-256: 05b0847a5bd298ff37b8c1177aa8a10ac10aff57f6a7f7197d2122f0ef2be539
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF is identified as malicious by ClamAV and a machine learning classifier. It employs a common phishing tactic by presenting an image-based lure, likely a screenshot, to entice users to click on an embedded external URL. The heuristic 'PDF_IMAGE_LURE' indicates the document's structure is typical of phishing attempts designed to obscure clickable elements. The primary IOC is the external URL found within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6386

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
  • 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://crophysi.ru/award?keyword=bathochromic+shift+pdf
    • https://cdn-cms.f-static.net/uploads/4389821/normal_60205fd96736f.pdf
    • http://makoxiniponino.iblogger.org/hamlet_oxford_bookworms_stage_2.pdf
    • https://cdn-cms.f-static.net/uploads/4409827/normal_605fd357883fd.pdf
    • https://static.s123-cdn-static.com/uploads/4417531/normal_5fedd8c172d60.pdf
    • https://cdn-cms.f-static.net/uploads/4456982/normal_601f946faffd1.pdf
    • https://cdn-cms.f-static.net/uploads/4367301/normal_601e9362b6828.pdf
    • https://static.s123-cdn-static.com/uploads/4481528/normal_5fde5d2f3f90c.pdf
    • http://mikovil.mywebcommunity.org/how_to_connect_atem_software_control.pdf
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5fd2346b979a4.pdf
    • https://cdn-cms.f-static.net/uploads/4420031/normal_600f40e878844.pdf
    • http://sarutufasiko.atwebpages.com/candlestick_patterns_binary_options.pdf
    • https://uploads.strikinglycdn.com/files/b447fbc8-cafc-48a4-a236-7306b635f959/67520465045.pdf
    • https://s3.amazonaws.com/zosevid/stairway_to_heaven_guitar_tab.pdf
    • https://uploads.strikinglycdn.com/files/a79f9abb-32ff-4086-8cbd-12093903066d/kijerawirisurazufu.pdf
    • http://wiwowefitupek.epizy.com/dojibaxemibiteralutatubo.pdf
    • http://popeganezawojeg.rf.gd/80078176492.pdf
    • https://uploads.strikinglycdn.com/files/19e651b7-2be1-4325-a0da-4fab7dc9b207/error_missing_ilok_authorization_for_pro_tools_10_mac.pdf
    • https://uploads.strikinglycdn.com/files/fd0ce19a-75e1-482c-a37b-6eef7352211d/25037227132.pdf
    • http://lazuletezofik.onlinewebshop.net/dabufekegiligevel.pdf
    • https://s3.amazonaws.com/rejiner/11463036005.pdf
    • http://najekaweza.onlinewebshop.net/dinikodatogaduj.pdf
    • https://s3.amazonaws.com/satudifin/colons_dashes_hyphens_and_parentheses_worksheet.pdf
    • http://kolavosenake.rf.gd/aha_bls_book_2020.pdf

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