PDF malware analysis — malicious · 6f5ac993fe7cf924

MALICIOUS

PDF

43.9 KB Created: 2021-06-13 21:24:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 190e6c113174ca15ed1f22addd47c14d SHA-1: 59aa2ab4f2e06022ad1d059fcd8c52ca60ff24f4 SHA-256: 6f5ac993fe7cf9243b79f30903e9c0ab2e01889503e714ee06a2c4225014f4ca

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents itself as a download for Roblox hacks, which is a common lure for distributing malware. It contains multiple embedded URLs pointing to potentially malicious files, including one directly from netcdn.co. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading and executing harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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 http://netcdn.co/app/431946152/roblox-jailbreak-hack-deutsch-download-free-game-hack PDF link annotation
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/goku-free-cloth-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/gravity-switch-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/como-hackear-cuentas-de-roblox-gratuitas_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-clothes-free-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-do-i-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-800-fre_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/how-to-get-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/como-desbloquear-un-cuenta-hackeada-de-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/no-hacks-working-on-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-your-bizarre-adventure-steel-ball-run-hack_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/freer-tiktok_GM835599320.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/como-hackear-cualqiuer-juego-de-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-knife-script-hack_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/robux-free-for-roblox_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-face-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-roblox-army-groups_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/roblox-robux-hack-download-free-2021_GM431946152.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://zbych-pol.pl/wp-content/uploads/fsqm-files/infinite-jump-hack-roblox_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_off00004bbd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BBD	25224 bytes
SHA-256: `51acbe5afc1a074c1889fb74c7e4390dc1258916c274d2490d6749bb2e20c8d4`
`font_01_sfnt_off000085c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85C5	19548 bytes
SHA-256: `3fe8f30d12cb33a2aec051ce2e838e6ca73a34cb17031722aafd60cf4a33d847`

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