PDF malware analysis — malicious · 2f759b6a5bdf2ec3

MALICIOUS

PDF

34.9 KB Created: 2021-07-01 10:15:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 568bc53e3bf8c491000ac0a7c40becea SHA-1: 0f6e7e02f0835d7151f702c85ee808aa217d8558 SHA-256: 2f759b6a5bdf2ec314310cbdc1fc0ebe11b905f1a8f0da6feac872f37a90d7d6

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The heuristic firings confirm these links point to known malicious redirectors and a game hack lure. While no scripts were explicitly extracted, the nature of the embedded links and the lure suggests a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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 http://netcdn.co/app/431946152/roblox-robux-hack-youtube-2021-game-hack In PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-hack-gear-into-roblox-games_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-free-chaser-codes_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-gta-5-money-hack_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/robux-hack-with-tampermonkey_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-hack-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-bee-simulator-hack-download_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-bloxburg-cheat-engine_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/cheat-hack-tool-roblox_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-free-robuks_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000316b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x316B	21944 bytes
SHA-256: `b3e5dc95b6b4ec133409d2a03b204bfca5e512dc2f1d3766539753827e7b3243`
`font_01_sfnt_off000061f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61F4	19464 bytes
SHA-256: `7caaaec3171e1f22a04a53838183ca3edb68f9c683683f98c81a361875d32817`

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