PDF malware analysis — malicious · 2a24f97d736e5755

MALICIOUS

PDF

41.6 KB Created: 2021-05-01 06:14:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 900a8ba17b44da4091241c574965fb02 SHA-1: 75e2a54b051811b1254fb49eb679922ccd2e1037 SHA-256: 2a24f97d736e5755afd9f202f9e45de0e321a60f67cbcaa500494bf5e2309e17

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'Roblox Hacking Accounts 2021' and similar lures. The heuristic firings indicate that these links are associated with known malicious redirectors and game hack lures. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

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/roblox-hacking-accounts-2021-game-hack In PDF document text
- https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-joke.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/roblox-brick-cars-cheats-code.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/roblox-hxh-id-cheat.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-2021-ios.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/gamekit-robux-free.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/roblox-2021-hack-face.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/how-models-hack-your-game-in-roblox.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/fisicuffs-roblox-cheats.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/roblox-makes-robux-items-free.pdfIn PDF document text
- https://lib-stie.yai.ac.id/repository/how-to-steal-people-stuff-in-roblox-hacks.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_003_off00003e30.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3E30	28420 bytes
SHA-256: `7ec62ed4d1eb9739aa383da825d2741827d0e537f66de52b767e6aefc2bda6ce`
`font_01_sfnt_off00007dce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DCE	19236 bytes
SHA-256: `4a24b17f0e50d6ee06977986dd7e70f4143bdfa662feb54313214cedf00487de`

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