Malicious PDF — malware analysis report

Static analysis result for SHA-256 e621182652ccf19d…

MALICIOUS

PDF

34.8 KB Created: 2021-06-30 04:22:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e92036bd47711388ba04b6c56c57e612 SHA-1: 791278cd6fd39323ba4bc1176a6bd798b4f1ec9f SHA-256: e621182652ccf19d4b576daab0ee7e3defab8244829b6b4634d34ef153418c51
82 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs and a heuristic firing for an external URI, all related to hacking or obtaining free currency in games like Roblox. The document body, though partially corrupted, also contains references to these lures and a URL that likely leads to a malicious script. The presence of a 'Password-protected archive handoff' heuristic suggests the downloaded content may be further obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-money-script-roblox-pastebin-game-hack
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-roblox-for-robux-2021_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-me-robux_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-delitive-mod-cheat-codes_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/how-to-cheat-robux-in-roblox-2021_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/troll-hacks-roblox_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/free-admin-ad-roblox_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-rocitizens-cheats-2021_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/free-minecraft-bedrock_GM479516143.pdf
    • http://library.sdkmaterdei.sch.id/repository/free-minecraft-account-and-password_GM479516143.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-get-unlimited-robux-2021_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/how-i-get-bloxburg-for-free-in-roblox_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/wwwroblox-freecom_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-free-robux-no-survey-no-save-no-subscription_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-phantom-forces-aimbot-hack_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/free-robux-sights_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-hack-tool_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/roblox-exploit-download-for-free_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/razzberry-cheat-roblox_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/i-has-cupquake-roblox-he-cheated_GM431946152.pdf
    • http://library.sdkmaterdei.sch.id/repository/free-avatars-on-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_off00003040.bin
11e3aab14eac9976226f7a1407aa017918042daceb4d1563ee2a670845d8eab3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3040 22224 bytes
font_01_sfnt_off00006145.bin
4476b2ea77c7cf8365707722f7d9c398e78c187edfe6ac41ef1ca3ccc567a533		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6145 19580 bytes

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