PDF malware analysis — malicious · 8cc7c4f71b03c23a

MALICIOUS

PDF

44.3 KB Created: 2021-06-11 01:52:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: ed76640f7f6196212d115aede5899980 SHA-1: aca7f9acf255c141077961741835ab632b3e156b SHA-256: 8cc7c4f71b03c23ab5605139cbedcbe4c8260412740756ff40e585221374a834

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document contains a lure related to free game items and includes a critical heuristic for requesting recovery secrets, indicating a phishing attempt. The embedded URL points to a suspicious domain, likely serving as a landing page for credential harvesting or malware distribution. No scripts were extracted from this sample, but the presence of external URIs and the ML classifier's high confidence suggest malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-girl-outfits-free-game-hack
- http://pustaka.fkm.unand.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/rc8-roblox-hack_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/rbx-free-robux_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/rbx-points-get-free-robux_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-survey_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-no-password-needed-or-verification_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-please_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/roblox-dragon-ball-final-hack_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/ways-to-get-free-robux-2021_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-quiz_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-roblox-executor-no-key_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/minecraft-launcher-free_GM479516143.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/play-minecraft-for-free_GM479516143.pdf
- http://pustaka.fkm.unand.ac.id/repository/coin-master-daily-free-spins_GM406889139.pdf
- http://pustaka.fkm.unand.ac.id/repository/roblox-helicopter-free-2021_GM431946152.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdf
- http://pustaka.fkm.unand.ac.id/repository/free-robux-hack-tool_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00004ed9.bin` `fa45bcfbca0d06ccf0eb8dadefba5e913b2db0f7c905622098c1899f7b87ce98`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4ED9	26372 bytes
`font_01_sfnt_off00008a90.bin` `244524c4b8304af758b57e8849bea4f73aa76a56654ce3bb9ee46995839bb28c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A90	18312 bytes

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