PDF malware analysis — malicious · eef950a334b35e02

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 06:58:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 9fe480301d2b5c9de7820387ec99b8f4 SHA-1: 2f7a247d50e12d7bf1f28818d48a3751f0415610 SHA-256: eef950a334b35e021d00fdb606f3176ce6c22d8e60ee3c35aa28866d2861ad9b

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.online/app/479516143/how-to-get-minecraft-realms-for-free-game-hack PDF link annotation
- https://foc.vn/public/upload/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/pokemon-go-free-ultra-balls_GM1094591345.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-a_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-reward-link_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/spin-and-coin-link_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-tiktok-views_GM835599320.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/minecraft-free-no-virus_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_004_off00005374.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5374	24992 bytes
SHA-256: `5cd058f583794ad22ec3ddadf3b6d62000fc3033ead85baa2422eb82dbc82278`
`font_01_sfnt_off00008b19.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B19	18208 bytes
SHA-256: `e7f5766237207d24130a790e1d2d61f15d85f871af5599da5b7787abafcff996`

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