PDF malware analysis — malicious · 693d91d1e7f2d483

MALICIOUS

PDF

35.8 KB Created: 2021-07-09 07:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 0809b0e83f3bf33a2a6c5f1462b46a72 SHA-1: 24cdc0673134cddfe8708cd64b1d904e96c20cf9 SHA-256: 693d91d1e7f2d483851ea0198f90a64d167e13655cf8a4ecf7edef606b149c5c

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 0.9980

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 http://netcdn.tw/app/406889139/free-coin-master-spins-hack-game-hack PDF link annotation
- https://maximabm.com/uploaded_files/userfiles/files/robux-sign_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-roblox-gift-card-codes-2021-unused-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/roblox-chat-hacks-grab-knife_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/youtube-free-robux-hack-2021-hurry-before-roblox-patches-it_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-ipad-mini-4_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/roblox-noclip-hack-2021-cheat-engiene_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/coin-master-computer-hack_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/roblox-btools-hack-2021-download_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/how-to-get-free-robux-ipad-mini_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/robux-hack-with-no-verification_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/hack-my-spins-coin-master_GM406889139.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_002_off00003424.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3424	23448 bytes
SHA-256: `507cb026f82167e41b79e6a40401fc22647689bcc1a84c9743a0d868c07ade6d`
`font_01_sfnt_off00006950.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6950	18344 bytes
SHA-256: `4d0657ae61433a99d4c3f327acf405e508756c248fc53430885ddf01c25216ba`

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