PDF malware analysis — malicious · b1e965105faedc58

MALICIOUS

PDF

42.4 KB Created: 2021-05-10 19:15:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: f506c33f103a7f2fa75f31054f939e6b SHA-1: 85d1c1f7bd10cc8f4e2961cc7473a07afb6d17d5 SHA-256: b1e965105faedc5851a6cd395b73341a45b76a010e25c1124f616438f563dbf3

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 0.9971

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/406889139/coin-master-spin-hack-no-verification-game-hack PDF link annotation
- https://tanahlot.id/assets/CKImages/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/114-4-hacks_GM479516143.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-free-box_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/robux-offers_GM431946152.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://tanahlot.id/assets/CKImages/files/claim-free-robux-button_GM431946152.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_off00004c5b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C5B	24816 bytes
SHA-256: `737ad46fef65cc150b1e69f2ccdcc416a93947c26a9e38a1166383a0a7e9475c`
`font_01_sfnt_off00008435.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8435	18028 bytes
SHA-256: `2de0e9c41ce50443ccbc7b49ff620d9d14c87888ef748e70805f38b18b312090`

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