PDF malware analysis — malicious · 41afb78d94ae815b

MALICIOUS

PDF

45.9 KB Created: 2021-06-14 01:44:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 1d2519411d793418483b14fca9703896 SHA-1: 7ec6a1d77fb4c08b1851ea4d461103307ab36d56 SHA-256: 41afb78d94ae815b1f2583a6cd7d9ed5f9b348cab168170a6409a5c18363d47e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains embedded URLs and a lure to download a game, which is a common tactic for distributing malware. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document instructs the user to execute commands, likely to facilitate the execution of a downloaded payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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/roblox-free-download-for-windows-10-game-hack
- http://repository.ummy.ac.id/repository/roblox-cheat-engine-commands_GM431946152.pdf
- http://repository.ummy.ac.id//repository/free-spins-and-coins-on-coin-master_GM406889139.pdf
- http://repository.ummy.ac.id//repository/roblox-script-hack_GM431946152.pdf
- http://repository.ummy.ac.id//repository/real-coin-master-hack-2021_GM406889139.pdf
- http://repository.ummy.ac.id//repository/2021-free-spins-coin-master-link_GM406889139.pdf
- http://repository.ummy.ac.id/repository/download-the-free-robux-generator-for-roblox_GM431946152.pdf
- http://repository.ummy.ac.id//repository/coin-master-free-spins-bit-ly_GM406889139.pdf
- http://repository.ummy.ac.id//repository/get-free-robux-now_GM431946152.pdf
- http://repository.ummy.ac.id//repository/jailbreak-roblox-hack_GM431946152.pdf
- http://repository.ummy.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdf
- http://repository.ummy.ac.id//repository/minecraft-reach-hack_GM479516143.pdf
- http://repository.ummy.ac.id/repository/free-robux-youtube-video_GM431946152.pdf
- http://repository.ummy.ac.id//repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdf
- http://repository.ummy.ac.id//repository/roblox-hacking-website_GM431946152.pdf
- http://repository.ummy.ac.id//repository/easy-how-to-get-free-robux_GM431946152.pdf
- http://repository.ummy.ac.id/repository/roblox-hacks-ru_GM431946152.pdf
- http://repository.ummy.ac.id//repository/how-to-get-free-spins-coin-master_GM406889139.pdf
- http://repository.ummy.ac.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
- http://repository.ummy.ac.id//repository/coin-master-hack-spin-link_GM406889139.pdf
- http://repository.ummy.ac.id//repository/how-to-get-free-shirts-on-roblox_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_003_off00004d10.bin` `25416f6decc297353bbad356b169298c2989a76f7634d8f0154dd8979d2ce0b0`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D10	28340 bytes
`font_01_sfnt_off00008da0.bin` `40c628d20489d4e5745706971237f419b145d3b68ce94c3c903f6bf6c715767e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DA0	19464 bytes

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