PDF malware analysis — malicious · bfed3370b08710a1

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 06:09:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 8aa5214a107c6bd61ddb292862cea054 SHA-1: 8a2be51335d3ecbdf822eb17113d3c2dba9053fd SHA-256: bfed3370b08710a1472e851e8ff3214f105abe77cb7d17b193d407b2c5d285bb

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and currency, directing users to a known malicious redirector. The primary URL, http://netcdn.tw/app/835599320/free-tiktok-likes-no-human-verification-or-download-game-hack, is associated with a game hack and free generator scam. While no scripts were extracted, the document's structure and embedded URLs strongly indicate a phishing or scamming attempt, likely leading to further malware download or credential harvesting.

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.tw/app/835599320/free-tiktok-likes-no-human-verification-or-download-game-hack In PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/types-of-free-hair-on-roblox-not-model-for-girl_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-free-robux-2021-easy-no-hack_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-free-items_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-freebies_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/ash-pants-on-roblox-free_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-promo-codes-2021-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-created-by-batu-kol-faki_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-70-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-pastebin-robux-hack_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-mod_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-spins-coin-master-app-ios_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-free-items-november-2021_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_off00003154.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3154	22092 bytes
SHA-256: `3a06e27793cd8d71c69482699626e8058adab87ef3620a910510a11fe6d3fa86`
`font_01_sfnt_off00006217.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6217	19088 bytes
SHA-256: `0fb460dabe8247348ae515a7df289e03e5445e6ce5d2eb2534604a8b634d24e2`

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