PDF malware analysis — malicious · 17c4a565ca7834ff

MALICIOUS

PDF

44.5 KB Created: 2021-05-16 23:02:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 4c1691417eee47377f3083bbef35e953 SHA-1: aa445ce98826595613bf6cb53f8bf5c430f0fbb2 SHA-256: 17c4a565ca7834ff662ce99d9a0d2a0bf28ce98b2796c3e6c2a5bcebc1c8400a

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 https://netcdn.xyz/app/431946152/roblox-com-robux-game-hack PDF link annotation
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-cracked-client_GM479516143.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-avatar-free_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- http://www.wholesomeliving.in/uploaded_files/userfiles/files/wurst-115-2_GM479516143.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.wholesomeliving.in/uploaded_files/userfiles/files/minecraft-windows-free_GM479516143.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_003_off00004bcf.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BCF	27692 bytes
SHA-256: `32fff0410caaa64e9ab39b03a4459483b958a26f6277a86caa576d0d5b80aac5`
`font_01_sfnt_off00008be9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BE9	18184 bytes
SHA-256: `f249dc7b85a63207670df4799ed7b071bbb563f249806a7da362391acbd0ae63`

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