PDF malware analysis — malicious · 3301892a65a447fa

MALICIOUS

PDF

44.2 KB Created: 2021-06-11 12:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 6122380cf2b246cf0b4c178503f895ee SHA-1: e584eff451b8060fce8c785a0a9b60c1e8ea046d SHA-256: 3301892a65a447fa8eb8ac84612cfcc4895c4c8e889a70e5a64e30eaf01d3444

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document exhibits characteristics of an advance-fee scam, specifically luring users with the promise of free game-related items or hacks. It contains multiple embedded URLs that likely lead to malicious downloads or further phishing attempts. The ML classifier also flagged this PDF as malicious, supporting the assessment of a scam-based attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 4

Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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/free-roblox-places-2021-game-hack
- http://nsktu.ac.in/ckfinder/userfiles/files/oginject-co_GM406889139.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/claim-free-robux-button_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/https-rbx-place-rewards_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-easy-2021_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-generator-no-survey_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-gift-card_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/how-to-get-gamepasses-for-free-on-roblox-2021_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/how-to-get-free-skins-in-roblox_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/injector-hack-roblox_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-coin-master-spins-hack_GM406889139.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/robux-free-c_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-free-daily-spins_GM406889139.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-roblox-passwords_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/coin-master-free-spins-link-2021-app_GM406889139.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-robux-games-on-roblox_GM431946152.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/minecraft-free-unblocked_GM479516143.pdf
- http://nsktu.ac.in/ckfinder/userfiles/files/free-5-tiktok-likes_GM835599320.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000051c9.bin` `49ebb7dc3e69aae639edf4d3b53cf06753b277d3014dcbac108fa458a73de648`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x51C9	24076 bytes
`font_01_sfnt_off000088bf.bin` `38f0d4e7723f2758e7e65e77e28217045aa3122a5dccd84b1113246cc3ed93ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88BF	18732 bytes

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