PDF malware analysis — malicious · ff8e85eb0aa485c4

MALICIOUS

PDF

48.5 KB Created: 2021-05-31 13:27:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 64a4e70ada181a21bd32aa03bfe8be60 SHA-1: 8199cc89374691dcf5464568947efbb61422b463 SHA-256: ff8e85eb0aa485c446d062db71448d57558970e43b4c3e029ca6c3e94b3515ea

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, specifically mentioning Roblox, and includes an embedded URI pointing to a suspicious URL. The ML classifier also flagged this PDF as malicious. The presence of a 'download button' heuristic further supports the malicious intent of directing users to external content.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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/431946152/how-to-hack-into-ppls-account-on-roblox-game-hack PDF link annotation
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-hack-somebody-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/why-you-shouldnt-trust-free-robux-scams_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-codes-not-used-2021_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-not-fake_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/minecraft-bedrock-free_GM479516143.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_off0000530f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x530F	26140 bytes
SHA-256: `d8ff5d7712a9a79565472117f89e1a3b3fa84586a3d3a97d66427142857b6c7c`
`font_01_sfnt_off00008f37.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F37	2820 bytes
SHA-256: `972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714`
`font_02_sfnt_off000098d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x98D7	18920 bytes
SHA-256: `3fc992b81eec689ea6b14beff8748854fbb164b2e725b6d312a0634345234438`

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