PDF malware analysis — malicious · 43c1013b2df2a3be

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 10:16:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 79c5d1a81be93dcf65e79a9f4600ddc4 SHA-1: 37d9cc8ab71ef8267ef809d9066a194a165f6a35 SHA-256: 43c1013b2df2a3bef155d235c52c7ffb24bc186f02a3e7673c86e43bd1278af2

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/431946152/free-robux-no-verify-game-hack PDF link annotation
- https://fridaytravelnepal.com/userfiles/files/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-shadowrun-free-pass-code_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-hack-minig-simulator-v3rmillion_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/master-game_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/code-cheat-roblox-to-chat_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/cheat-roblox-lumber-tyccon-fly_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-it-isint-free_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-hack-dot-xyz_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_off00002fb4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB4	22696 bytes
SHA-256: `7ef30186635ff1fa10027fae162d9546e509f04b09bd96011c8584508c106c4e`
`font_01_sfnt_off0000629f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x629F	19148 bytes
SHA-256: `c82ca362f7929c521a15e373c099d5f63e765e94f5114feac3ee2b66231d0241`

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