Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccfdee7858b9cc1a…

MALICIOUS

PDF

37.2 KB Created: 2021-05-22 03:37:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1665c0a70e9e442a8ff27352172e1972 SHA-1: cad5bf3a81e94774f878f5b2bae6b0d8f559b194 SHA-256: ccfdee7858b9cc1ac662497e593308c555d1cdf86aee219119828f47a1e66487
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visual call-to-action lure related to Minecraft hacks and Robux generators. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs suggests an attempt to redirect the user to a malicious site for downloading a payload. No scripts were extracted, but the document structure and embedded links indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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 https://netcdn.xyz/app/479516143/free-minecraft-skin-maker-game-hack
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-robux_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-people-on-roblox_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • https://learning.man1kabgorontalo.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000345b.bin
b21d459a6d029f62615acbf46a00b3a16b161c495221788cbed15cacfa3d5bc0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x345B 27184 bytes
font_01_sfnt_off000071c9.bin
7e8236a58a56ce0148da12d4a95e9c7df934e3b28e502a8d8a58237e3f9d26f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C9 17740 bytes

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