Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea23e74ff396122…

MALICIOUS

PDF

47.8 KB Created: 2021-05-14 07:10:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 87c6b3c25d0bb94d97553ac9bbc4e696 SHA-1: 1caf8c24aecf9d26d9d4481b0a628084bbe32ce7 SHA-256: fea23e74ff396122e0e36cee54fd3943ad3b0404166a9af627eb4485f38030eb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that lure the user with promises of free Robux and game hacks. The presence of a visual download button and instructions for password-protected archives suggests a malicious workflow designed to trick users into downloading and potentially executing malware. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/431946152/free-robux-working-game-hack
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-shirt-templates-roblox_GM431946152.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-100-robux_GM431946152.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-pocket-edition-free-download_GM479516143.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-daily-free-rewards_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/android-coin-master-hack_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-pc-free_GM479516143.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/hack-coin-master-1_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/hack-game-coin-master_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-ios-cydia_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-free-no-download_GM431946152.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-ps4-free_GM479516143.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/robux-generator-no-human-verification-or-survey_GM431946152.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-apk-july-2021_GM406889139.pdf
    • https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004be0.bin
fdabd69f99cf697682a00386deccb0000ffbf15c66a2f24a3664bdb2af4ab3a0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BE0 28196 bytes
font_01_sfnt_off00008d09.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D09 2880 bytes
font_02_sfnt_off000096f4.bin
146362cb081aa7c6718ebc51132ca2538876dc1922f8d33668898621d3d02efe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96F4 18788 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.