PDF malware analysis — malicious · df96ad3a6611bba9

MALICIOUS

PDF

44.6 KB Created: 2021-06-09 07:48:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 585ded6ec085042708f7a6cfaa735738 SHA-1: 1d236b065b32f16c379fce0e2b7dcbb3e4a0b7e1 SHA-256: df96ad3a6611bba963e77af88013f38394fe0c1ece2a5d48664f36f1cfb1d6bd

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 0.9865

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.tw/app/431946152/roblox-hack-no-human-verification-pc-game-hack PDF link annotation
- https://www.devries-group.de/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
- https://www.devries-group.de/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-tiktok-comments_GM835599320.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/las-mejores-paginas-de-hacks-de-roblox_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/is-there-any-way-to-gte-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/play-roblox-free-online_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-computer-hack_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/who-to-get-free-robux_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
`stream_004_off000050c2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50C2	24568 bytes
SHA-256: `54100e380aa4869115fe31cb49c2bfd58500f6aba71f463a9094537d2fa21ee2`
`font_01_sfnt_off00008936.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8936	19096 bytes
SHA-256: `84eb64a97681addb1c9b2e450b16cf12aed0f467125d9dee040a8a0ec5f12722`

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