Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f04b7df54acc078…

MALICIOUS

PDF

36.5 KB Created: 2021-06-28 04:08:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2c692d03fd7e2917f8d48b6712c5dae7 SHA-1: ab39db15b8e611b31b832654a2726172410815a7 SHA-256: 4f04b7df54acc078dcd7c6fbbc7ab4a18da4df28c4b5bf7e3b73440d23dddbf2
62 Risk Score

Malware Insights

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

The document contains numerous embedded URLs and references game hacks, suggesting a phishing or malware distribution attempt. The ML classifier strongly indicated maliciousness, and the presence of external URIs points to a likely download lure. No scripts were extracted from this sample.

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/pastebin-robux-hack-v6-5-mythical-chaos-game-hack
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/mcpe-download_GM479516143.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/how-do-you-download-minecraft-for-free_GM479516143.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/hacking-roblox-accounts-real-way-2021-v3rmillion_GM431946152.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/how-to-get-free-clothes-on-roblox-on-phone_GM431946152.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/real-coin-master-hack-2021_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-free-spins-without-human-verification_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-code_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/working-coin-master-hack_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/roblox-skybox-hack_GM431946152.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-free_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/free-robux-fast-and-easy-2021_GM431946152.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-free-400-spin-link_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdf
    • https://elearning.man1jember.sch.id/__statics/gudangsoal/files/vehicle-simulator-hack-script-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_off000033c6.bin
59f86dee7df7126ed652aaf499e8ff4667a6826d06440181fa6f8bea22e3f0b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33C6 22620 bytes
font_01_sfnt_off000066a2.bin
a9d85264200d0c872080d5638db8a5592696f7b9752d564c3c7a2c73435bc643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A2 20152 bytes

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