PDF malware analysis — malicious · 724fff25ff860d39

MALICIOUS

PDF

43.1 KB Created: 2021-05-17 07:03:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 24c4085138f108b91aa1fb36316cd21a SHA-1: affd7a29a6b8bb97c8415531b0a8ad3795733993 SHA-256: 724fff25ff860d39be26d0720b64f54e5e8a4b7aed9870c86f974f66a8e1117b

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 a 'secret recovery' lure, indicating an attempt to trick users into clicking malicious links. The primary URL points to a "Coin Master Hack" which is a common lure for phishing and malware distribution. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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-version-2021-free-download-game-hack
- http://aeridefense.com/image/data/files/robux-generator-no-verification-2021_GM431946152.pdf
- http://aeridefense.com/image/data/files/unlimited-robux_GM431946152.pdf
- http://aeridefense.com/image/data/files/minecraft-xray-hack_GM479516143.pdf
- http://aeridefense.com/image/data/files/free-roblox-money_GM431946152.pdf
- http://aeridefense.com/image/data/files/coin-master-free-spin-app-reviews_GM406889139.pdf
- http://aeridefense.com/image/data/files/free-limiteds-roblox_GM431946152.pdf
- http://aeridefense.com/image/data/files/coinmaster-free-spins-link_GM406889139.pdf
- http://aeridefense.com/image/data/files/get-free-gold-cards-in-coin-master_GM406889139.pdf
- http://aeridefense.com/image/data/files/daily-free-spin-and-coin_GM406889139.pdf
- http://aeridefense.com/image/data/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
- http://aeridefense.com/image/data/files/free-robux-generator-for-roblox-2021_GM431946152.pdf
- http://aeridefense.com/image/data/files/coin-master-hack-2021-download_GM406889139.pdf
- http://aeridefense.com/image/data/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdf
- http://aeridefense.com/image/data/files/how-to-hack-roblox-accounts-2021_GM431946152.pdf
- http://aeridefense.com/image/data/files/how-many-levels-does-coin-master-have_GM406889139.pdf
- http://aeridefense.com/image/data/files/hack-coin-master-without-human-verification_GM406889139.pdf
- http://aeridefense.com/image/data/files/coin-master-hack-2021-without-verification_GM406889139.pdf
- http://aeridefense.com/image/data/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
- http://aeridefense.com/image/data/files/mcpe-116_GM479516143.pdf
- http://aeridefense.com/image/data/files/how-to-hack-coin-master-android_GM406889139.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_off00004b49.bin` `4ed1d06581ec8232ce5b24dcfb09ee02edb00a16c4449a4bc4d9e8f763f3b63a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B49	24936 bytes
`font_01_sfnt_off0000841b.bin` `92d9309ab276bc9aab9745226f7a970795db6d0c86763d97e38cf379742c13e0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x841B	18996 bytes

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