PDF malware analysis — malicious · 11c913c74e94086f

MALICIOUS

PDF

49.1 KB Created: 2021-06-01 06:03:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 9802287c5aba62af915531f20f9d2001 SHA-1: 7e4daa57f5647b912dd65a44c613a21c30300d5f SHA-256: 11c913c74e94086f766b47939551443b0a06c511d2b53b0ebd468eb0b00fbb79

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering 'free generator' or 'game hack' lures, with a primary redirector identified as malicious. The document body, though partially corrupted, contains text related to 'Hack Unlimited Robux' and references the malicious URL. This suggests the document is designed to trick users into visiting a malicious site, likely to download further malware or engage in phishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.xyz/app/431946152/hack-unlimited-robux-game-hack In PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/teleport-hack-roblox_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/roblox-ultimate-driving-westover-islands-how-to-get-free-cars_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-robux-games-real_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-minecraft-mods_GM479516143.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/passwords-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-robux_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/free-tiktok-app_GM835599320.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/roblox-cheats-2021-dll_GM431946152.pdfIn PDF document text
- https://satsco.com.vn/wp-content/uploads/fsqm-files/best-roblox-free-hacks-topek_GM431946152.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
`stream_004_off00005120.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5120	26056 bytes
SHA-256: `232509e42542c9f89b243a66d8dfd082eca46fc40d048a1a38a60428a94a34d1`
`font_01_sfnt_off00008d50.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D50	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off00009a62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A62	19168 bytes
SHA-256: `b05210411b8e1e9c2f939691443742638b1777083329ffe24d3c226cc42e357d`

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