PDF malware analysis — malicious · 6e4ed3dbfc231ed1

MALICIOUS

PDF

48.1 KB Created: 2021-05-31 05:48:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 27ab2a26a23dc97634d119f1adb6eba5 SHA-1: ac7870038b9c1b4b45d8b4e5477b190c6cce0b93 SHA-256: 6e4ed3dbfc231ed1128e7e487818030161cc143e1b0759c084e096cb8ec5d503

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a link for game hacks. This link, 'https://netcdn.xyz/app/406889139/coin-master-free-spins-link-today-game-hack', likely leads to a malicious site for further exploitation or phishing. The document's structure and embedded URLs suggest a social engineering tactic to deliver a payload or redirect to a malicious resource.

Machine Learning

Nyx PDF Classifier malicious score 0.8017

Heuristics 5

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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-free-spins-link-today-game-hack PDF link annotation
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/minecraft-pc-free_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-robux-gift-card_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-100-robux_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-robux-link_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/tiktok-fans-free_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-tiktok-accounts_GM835599320.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
- https://barcelonahealthhub.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-today_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
`stream_003_off00005533.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5533	25440 bytes
SHA-256: `9088c31667a9c915e610012b71331b4430e9daaa114e752e1a114203c66da8ad`
`font_01_sfnt_off00008ef9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EF9	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off000098ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98AB	18412 bytes
SHA-256: `ee277532c3187caf3da016130e4cbd3fee848ac0b1174d0f40fc16c12ed3c41d`

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