Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad69c2b30b2a8997…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 15:16:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7bef34f27bb255ab1f20c74d2cb0edc9 SHA-1: 6b67705fdaebc27067bd637456e851f353cbd08a SHA-256: ad69c2b30b2a8997b64d0eb678f096b7be1b00ee63e9dcf27795886d28e4e119
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body and embedded URLs indicate a lure for free in-game items, likely a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a download or redirection to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-roblox-account-with-free-robux-game-hack
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-xbox-360-free_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-free-robux-com_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/robux-earning-websites_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/www-blox-land-free-robux_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-hack_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/robux-generator-no-survey_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-money-cheat-ipad_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-gg-free-quick_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/avatar-editor-roblox-free_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/name-that-youtuber-roblox-cheats_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/google-play-free-robux_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-cracked-minecraft-server-hosting_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-ios_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032e3.bin
4ec08e8c5ffb03a02f4c5e4c4c804f02fcaba11034274f339581f7e52de334a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32E3 22164 bytes
font_01_sfnt_off000063f3.bin
294ecbbaede5ce656ecedd4be4e6d9173b779749fc310834e2fc94160ffcfd79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63F3 19376 bytes

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