Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae20b1ae4742794…

MALICIOUS

PDF

35.8 KB Created: 2021-07-01 18:35:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 23fedf10a2b483eb2bea3ae56e8b2139 SHA-1: a0dd1384cdb98888130d8541887b94ee7fde8869 SHA-256: eae20b1ae474279408e14b630675867549f8bb439c4a2744a81933bc79c65050
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The document body and extracted URLs focus on 'free Robux' and game hacks, indicating a lure to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://netcdn.co/app/431946152/how-to-get-free-robux-fast-game-hack
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/minecraft-free-download-pc_GM479516143.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-builders-club-hack-free-download_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-roblox-card-twitter_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-adopt-me-flying-potion-roblox-codes_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-shirt-girl-free_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-survey_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/freerobuxclubor_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-10min_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-make-a-free-robux-website_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-hack-999999-robux-2021-pc_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/http-roblox-free-robux-hol-es_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-hack-into-your-roblox-account-without-the-password_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/free-car-in-car-simulator-roblox_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-bc_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/hacking-roblox-accounts-cheat-engine_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-robux-not-clicbait_GM431946152.pdf
    • http://e-learning.mtsn15ciamis.sch.id/__statics/gudangsoal/files/how-to-get-the-kistune-for-free-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000352c.bin
27fc55172b167867b9107164cb103710eb3cb559022464602f2b169b79056135		 pdf-font-stream PDF embedded font (sfnt) at offset 0x352C 22348 bytes
font_01_sfnt_off000066ec.bin
bed0a7dac96498375f4eaea59b570525fab5ec2b3fb3a823c1f5d212ca36b463		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66EC 18984 bytes

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