Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f1b047118150051…

MALICIOUS

PDF

33.7 KB Created: 2021-06-30 00:19:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 02036259dae1d02f0e38cade192b375a SHA-1: b7b0e5a082128971bf9ef4fc56747f18d97a2654 SHA-256: 0f1b04711815005115e08cf95dba3c29b03a1d3373a3983b4d89401e0c8b463e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous embedded URLs and a "download button" lure, strongly suggesting it is designed to trick users into downloading malicious files. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs indicate a lure related to game hacks and cheats, likely leading to the download of malware.

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/roblox-btools-hack-mac-game-hack
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-save_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-fun-hack_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-free-cards_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/roblox-e-free_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/roblox-sprinting-simulator-cheats_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/50-free-spins-coin-master_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/google-roblox-extension-hacker_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/hack-coin-master-spin-android_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/minecraft-games-to-play-for-free_GM479516143.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-facebook-free-spins_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-hair-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_off00002e72.bin
16a1b51a505e30cc844c2b25ddeaf809744c8f59a63e93fae294d5df19eddc3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E72 21804 bytes
font_01_sfnt_off00005eaa.bin
1d0e12ca21d46fae3e9eeaa6aa36423adaf3a767b8ab10b5ba42c46f1410c79d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAA 18956 bytes

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