PDF malware analysis — malicious · 4188caffccbaa81c

MALICIOUS

PDF

41.7 KB Created: 2021-05-15 01:11:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 9e18789d6f5da620954a0059198b8f6b SHA-1: bbaf5cd4ea5867c4359f4ee1b8fbaec1676fa488 SHA-256: 4188caffccbaa81c67b862395ca1cbbfb00e64b04a92af666bd6c032854a552d

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs and a heuristic firing for requesting recovery secrets, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a "download button" heuristic further supports the lure to click on these links.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/public-enemy-sun-prairie-coin-master-free-spins-game-hack
- https://itv-grabungen.de/images/free-robux-gen_GM431946152.pdf
- https://itv-grabungen.de/images/free-spins-coin-master-links-no-human-verification_GM406889139.pdf
- https://itv-grabungen.de/images/haktuts-coin-master-free-spins_GM406889139.pdf
- https://itv-grabungen.de/images/robux-hack-2021_GM431946152.pdf
- https://itv-grabungen.de/images/how-do-u-hack-roblox_GM431946152.pdf
- https://itv-grabungen.de/images/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- https://itv-grabungen.de/images/how-to-get-free-robux-on-iphone_GM431946152.pdf
- https://itv-grabungen.de/images/coin-master-free-daily-rewards_GM406889139.pdf
- https://itv-grabungen.de/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdf
- https://itv-grabungen.de/images/free-spin-link-of-coin-master_GM406889139.pdf
- https://itv-grabungen.de/images/free-2021-robux_GM431946152.pdf
- https://itv-grabungen.de/images/minecraft-server-hacks_GM479516143.pdf
- https://itv-grabungen.de/images/roblox-free-robux_GM431946152.pdf
- https://itv-grabungen.de/images/robux-hack-generator_GM431946152.pdf
- https://itv-grabungen.de/images/coin-master-free-spins-cheat-deutsch_GM406889139.pdf
- https://itv-grabungen.de/images/free-coin-master-androd-cheats-2021_GM406889139.pdf
- https://itv-grabungen.de/images/free-spins-coin-master-2021-no-verification_GM406889139.pdf
- https://itv-grabungen.de/images/minecraft-hack-ios_GM479516143.pdf
- https://itv-grabungen.de/images/coin-master-free-spins-link-today_GM406889139.pdf
- https://itv-grabungen.de/images/how-to-hack-and-get-free-robux_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_off00004824.bin` `40db625e767b6159352fbbb5963cf41aca406b6ee3ec6c3e4f93e0fb82705ef7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4824	24036 bytes
`font_01_sfnt_off00007eec.bin` `28499684f241e3a32561fe5e423cdec1d75249d8704628fb0f8c3d45d665b784`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EEC	18852 bytes

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