Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e52568263c4412f…

MALICIOUS

PDF

35.8 KB Created: 2021-05-21 22:06:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 78978636074ca7f3e3fac782155df9f2 SHA-1: 03851e99a9ad861b7901309c51693f57421d70c5 SHA-256: 4e52568263c4412f4e0cc42bf67b252aa1e491f945362c9d60b5d224de79804a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent call-to-action to access a 'Minecraft Generator'. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may be part of a multi-stage attack, potentially involving an encrypted payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/479516143/free-minecraft-alts-game-hack
    • http://elektrofahrspass.de/images/roblox-pics_GM431946152.pdf
    • http://elektrofahrspass.de/images/free-coins-and-spins-in-coin-master_GM406889139.pdf
    • http://elektrofahrspass.de/images/master-coin-hack_GM406889139.pdf
    • http://elektrofahrspass.de/images/how-to-make-robux_GM431946152.pdf
    • http://elektrofahrspass.de/images/coin-master-links-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000334f.bin
100cb93627b22e943eb54e1a0b8bdea827dbeaadd09b0539a1076c6e246aecdc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x334F 25000 bytes
font_01_sfnt_off00006c7f.bin
4350bb70586d7d356c834f80239bf16b03274066df9e9143be1036ee17eff588		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7F 17644 bytes

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