Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b34aae70383a47f…

MALICIOUS

PDF

35.5 KB Created: 2021-07-01 07:37:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3065a00c7ed6c9a486ba2d5fae48eece SHA-1: 084591a7ec54ee024f9dfb9fdea7fd4e733a9eaa SHA-256: 0b34aae70383a47fd669ca59838cb53686cc1f582db7c858968e5ee0247a71a0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to 'http://netcdn.co/app/431946152/how-do-u-get-free-robux-game-hack', suggesting a lure for game-related cheats or hacks. The presence of a visual download button heuristic and the ML classifier's high confidence score indicate a malicious intent to distribute potentially harmful content. No scripts were extracted, but the embedded URL is the primary indicator of the attack pattern.

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/how-do-u-get-free-robux-game-hack
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-spin-coin-master-game_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-gold_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-cracked-apk-free-download_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-robux-gift-card-codes_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/no-human-verification_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/new-free-spins-coin-master_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/free-tiktok-followers-real_GM835599320.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-code-free_GM479516143.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-32-hack-apk-download_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/coin-master-free-box_GM406889139.pdf
    • https://elearning.min6blitar.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdf
    • https://www.roblox.com/.I
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032db.bin
d3dec8c36362d3b4b622a8ab4aad7465180e5b849367de40996a09e5636fd97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32DB 22668 bytes
font_01_sfnt_off0000658c.bin
e62fd154b22e8a237d0c5fd5aca87f51fb4a817c5318a30dd1d6bc44dc361d61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x658C 19152 bytes

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