PDF malware analysis — malicious · ec7b6ed92a3e0a07

MALICIOUS

PDF

35.4 KB Created: 2021-06-18 00:22:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 3cdc20a37aa17d04ff388cb23a55ecd3 SHA-1: e4954a026c62dd2f604d1f3e39e4f89936f9f4a8 SHA-256: ec7b6ed92a3e0a07612fe63708904d1ec4b4e9a30d92e9ccc37cc92203a73c26

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free Robux and game hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The document's content and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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-youtubers-that-give-free-robux-out-in-their-groups-game-hack In PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-aot-tshirt-free_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/hack-roblox-jailbreak-money-2021_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-hack-robux-on-roblox-2021-mac_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/nope-hack-roblox-cheat-engine-64_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/imaflynmidget-free-robux_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/free-robux-gift-card-codes-not-used_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/hack-de-roblox-2021_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-plane-blueprints-free_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-murderer-mystery-2-gem-cheats_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-stats-hack_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/free-code-robux-no-fake-2021_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/download-roblox-for-free-unlockable_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-high-school-2-money-hack_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-cheat-engine-bypass-2021-super-power-training_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/roblox-item-hack_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/infinite-jump-roblox-cheat-download_GM431946152.pdfIn PDF document text
- https://brsolutions.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-fake-card_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
`font_00_sfnt_off0000337e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x337E	22060 bytes
SHA-256: `bd77c98cc6a340405c5a5a5bed67900d607b9cdc104df13a180e02ceac3ad250`
`font_01_sfnt_off00006463.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6463	19448 bytes
SHA-256: `c54788236941025108cc4f387f0870ed912848c68bebed7191392d7a7c0a7c89`

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