PDF malware analysis — malicious · 528216e79708b51b

MALICIOUS

PDF

36.1 KB Created: 2021-06-27 13:58:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: fb23bda7eaa3614db1ea9a0a9bf5cd13 SHA-1: 09d3828350d8c78e21cf9c002d3bf7490b3e71cb SHA-256: 528216e79708b51b901259cd18cd080b9d5f4b781a656f68175ad0b5f1cffbaf

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.co/app/431946152/roblox-galaxy-shirt-free-shipping-game-hack PDF link annotation
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-hack-someone-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-how-to-join-builders-club-for-free_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-nopde-engine-cheats_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/pubg-uc-kharidna-hai_GM1330123889.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-hacked-by-bluerose_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-gift-card-codes-2021-on-images_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-hack-2021-on-ipad_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-free-roblox-no-survey_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-things-in-catalog-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-get-free-cards_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
`font_00_sfnt_off000033c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33C7	23000 bytes
SHA-256: `0dd9a7d0bacb9324f9de4aed3deffcfa0e945a9c4f9dc479fc1a74655c5c9e35`
`font_01_sfnt_off00006750.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6750	19396 bytes
SHA-256: `1393b647de83d5a2b23a32827a9f297a8c587c3bd1382b5ed0a77dbee5f63968`

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