PDF malware analysis — malicious · f3e309cd3bc1bd47

MALICIOUS

PDF

34.8 KB Created: 2021-07-20 12:45:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: c85dc163d65077cec3f2561bcc64a1ec SHA-1: 238424594363fa88f418eafdaa1f5bbdb16aa839 SHA-256: f3e309cd3bc1bd47e84e2aed48979b1c829bd2368a195eb601a6717cddd17784

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as "free Robux generators" or "game hacks". The document body and embedded links strongly suggest a phishing or scam attempt, aiming to redirect users to potentially harmful websites. No scripts were extracted, but the presence of multiple malicious URLs and the lure text indicate a high likelihood of a phishing campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9962

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/431946152/free-robux-no-human-verification-or-survey-game-hack In PDF document text
- https://ceiprevellodetoro.org/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/robux-com-free_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://ceiprevellodetoro.org/images/free-robux-card-codes_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_002_off00002f9a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2F9A	22864 bytes
SHA-256: `e3b739bef584be90b79df3468638eebca449674b78447807bf7f39f7442f1438`
`font_01_sfnt_off00006307.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6307	19340 bytes
SHA-256: `0be6332f5db9b68e6855cb36399996a21aa6d2b8aae7743af0b009d1ac981dcc`

Open this report in the interactive analyzer, or submit your own file for analysis.