PDF malware analysis — malicious · 77f796ff5f9f3128

MALICIOUS

PDF

36.4 KB Created: 2021-07-05 08:24:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d76a24b8aa06e274612e0b8e80dba0be SHA-1: aaae72b378a58dca0130ed8685f3aca271a48644 SHA-256: 77f796ff5f9f31287a3a1984bca1ce6261a9438f0a3ebcf2b4d145ca83bd5ca7

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, specifically advertising free game hacks and currency. The primary lure is 'minecraft-pocket-edition-apk-free-download-game-hack' hosted on netcdn.tw, which is flagged as a malicious redirector. The document's content and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for malware distribution 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/479516143/minecraft-pocket-edition-apk-free-download-game-hack In PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/how-to-glitch-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-roblox-codes_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/roblox-speed-hack-feb-10_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/hacker-names-for-roblox_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-master_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/how-to-get-free-robux-july-2021_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/roblox-person_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/get-me-free-robux_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/free-song-id-roblox_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
- https://www.pearlsayurvedclinics.com/cote_dor_import/admin/ckfinder/userfiles/files/2021-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
`font_00_sfnt_off000036e0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36E0	22748 bytes
SHA-256: `5d28eba872b518221289f8ec894fb9ee01a401c73a19bc98df040ebea3282d42`
`font_01_sfnt_off00006978.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6978	19080 bytes
SHA-256: `eaa44c016b5e2fcb469ce124d9c10d2bdfbf681199bf2aba0125fc2b94f64bf0`

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