PDF malware analysis — malicious · 9c58a557cbe92a33

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 05:45:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3e9aaf039f38cb4213d1ef729fbc609e SHA-1: 09840b26015687a00645cdedec32c0a7655d7eac SHA-256: 9c58a557cbe92a33e22423f3e3d10d0fbdab2661e2c19176eff104ded73a7fd7

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-bloxburg-vehicle-speed-hack-game-hack PDF link annotation
- http://santeh-40.ru/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/roblox-how-get-animation-pack-free_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/oginject-co_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/robux-fun-com-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/brand-new-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-hack-root_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/save-pikachu-cheat-roblox_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-get-offsale-stuff-on-roblox-free_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/hack-for-roblox-wont-get-banned_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/how-to-hack-roblox-admin-2021_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- http://santeh-40.ru/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/free-robux-scams-reddit_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/free-printable-roblox_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- http://santeh-40.ru/images/tiktok-follower-bot-free_GM835599320.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_off000030b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30B7	22660 bytes
SHA-256: `03d470025fc5b8356357928a15397f271578e2cf67b7fd0eb234c3b72c379c34`
`font_01_sfnt_off000063c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63C2	19380 bytes
SHA-256: `a167570c8ec5530c735cd047db81d13fe49413df0f8de3a21ce9ceccd01cf8dc`

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