Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa5ed3488749183…

MALICIOUS

PDF

227.5 KB Created: 2021-07-06 18:08:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cdfc98bf2286fe24565e6b52f0d5fb5f SHA-1: 0955a0f32c7cbe93131ad240fa850c1d938e1050 SHA-256: 0fa5ed34887491838df0d03885fb3d8981c84bb4e8601905c05072b6d2054ada
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document employs social engineering tactics, including a fake CAPTCHA and a download lure, to trick users into clicking a malicious URL. The embedded URL points to a site offering a 'Pokemon Go Free 90 FPS Game Hack', which is a common pretext for malware distribution or credential theft. The document's structure and heuristics strongly suggest an attempt to exploit user curiosity for malicious purposes.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 6

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.tw/app/1094591345/pokemon-go-free-90-fps-game-hack
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/paginas-para-hackear-en-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-coin-master-spins_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-minecraft-coins_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-coins-coin-master-ios_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/cute-free-hairs-for-girls-in-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-free-money-in-bloxburg_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-get-free-robux-money-on-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-hack-robux-2021-free-download_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/minecraft-hacks-18-9_GM479516143.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-drop-master-free_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-free-cards-link_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-2021-free-spins_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-prison-life-noclip-hack-2021_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-free-spins-gratis_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-jailbreak-hack-apk-download_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/blue-boy-hack-roblox_GM431946152.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-hacks-for-free-spins_GM406889139.pdf
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-robux-no-survury_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off000321b8.bin
eb7b98c2d54ce5aab9321ba5c70346566b5593294c6edd1638236a77b7114c7f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x321B8 25576 bytes
font_01_sfnt_off00035db8.bin
1c09d118933f221774ec6c6902e33b3c19dcedb3b3d248a5ab56569b7e476afc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35DB8 18868 bytes

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