PDF malware analysis — malicious · fec9d491a6e0ffe1

MALICIOUS

PDF

45.8 KB Created: 2021-05-18 23:48:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 75c5cdf9068efc9a5446182bff5aa596 SHA-1: aa3dc417d9e2aa0861eaa1ffaaa98e0ed5bd407a SHA-256: fec9d491a6e0ffe17f85e03273f0e356870855fd40a4fc4a5c9542cccd55b8ff

110 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document contains embedded JavaScript and a prominent external URI, indicating an attempt to execute code and redirect the user to a malicious website. The heuristic 'SE_SECRET_RECOVERY_LURE' suggests the document may also attempt to phish for sensitive information like private keys or passwords. The primary lure appears to be related to game cheats or free spins, a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

Heuristics 5

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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/free-spins-on-coin-master-link-game-hack PDF link annotation
- https://www.dachytarasowe.eu/images/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/rbx-earn_GM431946152.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-hack-unlimited-spins-game-download_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/coin-master-cheat-free_GM406889139.pdfIn PDF document text
- https://www.dachytarasowe.eu/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004bb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4BB5	26392 bytes
SHA-256: `0f65d1d9f40047664134d9aed869a7435f60490e004b7267ee36a3cd55994ced`
`font_01_sfnt_off00008752.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8752	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off0000913d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x913D	18056 bytes
SHA-256: `892ebf3b86ae534fd3f474e2c239da2a9bb4dc91f8225dc09222a78aadec1336`

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