PDF malware analysis — malicious · 3f2d911a1d5e6e1f

MALICIOUS

PDF

46.8 KB Created: 2021-06-10 21:49:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: dd4a48005228cd2405158f34c7e02ade SHA-1: 5222a3a898a2f889f25fefd9408e5a1b933100db SHA-256: 3f2d911a1d5e6e1fd2e08c7326ab5b355633e43eba6f26a67625ce50b88da6fb

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which are related to game hacks and free in-game currency, suggesting a phishing or malware distribution lure. The presence of a download button lure and callback phishing indicators further supports a malicious intent. While no scripts were explicitly extracted, the ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious content or exploit.

Machine Learning

Nyx PDF Classifier malicious score 0.9749

Heuristics 4

Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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.tw/app/431946152/how-to-hack-srf-15-a-roblox-game-hack PDF link annotation
- http://lawpatron.ru/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- http://lawpatron.ru/images/free-robux-script_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/spin-and-coin-link_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/how-do-you-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/a-free-game-called-roblox_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- http://lawpatron.ru/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004ea3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4EA3	25104 bytes
SHA-256: `50ca9f9341d0efbb7bf1f4b4bb9b77890d8cde19bcf9f5c3c249f9f801265846`
`font_01_sfnt_off000088b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88B5	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off000092c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92C5	18584 bytes
SHA-256: `f929a709f8a5198436fe5564856e3c2d889fe1a2510ef0d8cb79ad403490d29c`

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