Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a95284a3626a76…

MALICIOUS

PDF

39.5 KB Created: 2021-05-22 03:38:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f0f6fd602400f99dccac0ae37288a213 SHA-1: 5b8ff628b3749e0ffc6fa55b4f226f44d624328e SHA-256: 08a95284a3626a76f545d1cc40f9881a5d104a6b13f301bb864e486b788594e9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a heuristic firing for "SE_SECRET_RECOVERY_LURE", indicating a phishing attempt. The document body and embedded links suggest a lure for game-related cheats or currency, which is a common social engineering tactic. The presence of embedded JavaScript, though not directly analyzed for malicious behavior, is often used in PDF exploits to download and execute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/406889139/coin-master-hack-activegamer-game-hack
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdf
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/minecraft-com-free_GM479516143.pdf
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/is-minecraft-dungeons-free_GM479516143.pdf
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-robux-com_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003527.bin
49fb976a5b54145356296e413e2963ba9d4f18e3d664c1440083600e4706a4bf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3527 25440 bytes
font_01_sfnt_off00006e77.bin
c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E77 2896 bytes
font_02_sfnt_off0000785c.bin
7942159ea88d166bbca90a684af9c7642873a6db171e4c543e33bc315b6ed94a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785C 18376 bytes

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