PDF malware analysis — malicious · 1d61679ed71b1eed

MALICIOUS

PDF

36.6 KB Created: 2021-07-03 11:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 5dfd7bdce010b4f43df41cee3eefed1e SHA-1: aad9621abea47bbd6cc0072604ddc1ae4a36f684 SHA-256: 1d61679ed71b1eed0e7037cf28dd90630b892167fef70487dca8ae301ba9ca5b

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/coin-master-free-spin-daily-link-game-hack PDF link annotation
- https://www.bodyammo.in/uploaded_files/userfiles/files/free-robux-no-human-verification-and-no-application-2021_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/how-to-have-the-gamepass-for-pet-simulator-roblox-free_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/https-webrobloxcom-free-robux-sortfilter-defaulttimefilter-0_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-2k-hacks_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/how-to-get-free-robux-no-joke-2021_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-free-robux-t-shirt_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-granny-cheats_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/free-cheap-robux_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-police-auto-arrest-hack_GM431946152.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- https://www.bodyammo.in/uploaded_files/userfiles/files/free-spin-link-coin-master-today_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_off0000365a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x365A	23476 bytes
SHA-256: `c29649387101ffddb8f19e3f2d6d561aa74ce9dc22d7f001c343cd868e553fd1`
`font_01_sfnt_off00006b49.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B49	18768 bytes
SHA-256: `9fefbb771085525faa6b6b1c9c948570a810338fb9e41354c9418806dfb9931a`

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