PDF malware analysis — malicious · 5dffa8dd3bbc8933

MALICIOUS

PDF

45.6 KB Created: 2021-06-01 23:35:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 9ceef3b8a7c80c8ea5632f111d6c8a30 SHA-1: 2a0a8ff231f8e43cc848a355e07277bce0c82f87 SHA-256: 5dffa8dd3bbc8933ddf85d02b402c9d7049bd6bc586826682e71de3be8b89897

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 4

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.
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/431946152/glhtis-how-to-get-free-robux-youtube-game-hack PDF link annotation
- https://tjiko.de/wp-content/uploads/fsqm-files/free-cool-roblox-exploits_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-generator-hack-2021_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-coin-master-coins_GM406889139.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/roblox-free-robux-hack-android_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-in-roblox-prison-life-no-virus_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/robux-free-com_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/what-would-noobs-do-with-free-robux_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-roblox-games-for-geust_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/codes-to-get-free-robux-may_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-hack-un-used-roblox-accounts_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-know-it-all-face-roblox_GM431946152.pdfIn PDF document text
- https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-websites-that-actually-work_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_off000050db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x50DB	26360 bytes
SHA-256: `f506a77b522e628ddc1c169df0eb707ac8d088a37f6882baaece597a10d6b533`
`font_01_sfnt_off00008e31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E31	18804 bytes
SHA-256: `e87469649201e1a498c7645c0653534cf1c65ae3062a4e39e69212b1613db8aa`

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