Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a14e8ee37dabfb…

MALICIOUS

PDF

33.7 KB Created: 2021-07-06 11:48:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b69fd609d3e47f52e61080bbd338faf8 SHA-1: b8221aebd709475d278e9d0c6c9e411cfb08fd50 SHA-256: 03a14e8ee37dabfbc53baaa023cfe4d53d9f482a5bac18ec0f17da2764b022c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/431946152/free-robux-com-game-hack PDF link annotation
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/re-ghoul-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/i-got-hacked-but-i-want-my-account-back-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/how-to-hack-in-robux-no-pastebin_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/roblox-mm2-godly-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/hack-apk-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/how-to-hack-coins-in-reason-to-die-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/cheat-engine-roblox-restaurant-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/commands-for-hacking-admins-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/roblox-spot-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/how-to-get-cartoony-animation-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-roblox-script-obfuscator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/roblox-ninja-animation-package-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-roblox-accounts-discord-server_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-robux-2021-february_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1blitar.sch.id/__statics/gudangsoal/files/free-roblox-hide-and-seek-extreme_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000305c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305C 21308 bytes
SHA-256: 1f12181e3583219c5aa5d16cc27e2b8f227c9110be071ca26eceb283eb55e0d8
font_01_sfnt_off00005eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEB 18976 bytes
SHA-256: 20782bd0acfe52469dc9f14a315b4aee1c9563688044d1d6d3a516ef71528a8c

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