Malicious PDF — malware analysis report

Static analysis result for SHA-256 be9c20649cafb6c3…

MALICIOUS

PDF

41.2 KB Created: 2021-04-27 03:23:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6a245810102c295ad10d093b476037dd SHA-1: f639fe92209ab54f1d9b1d342c7f95f02c3122ca SHA-256: be9c20649cafb6c31a7a9919697f1c8d239d0165d5d350c7e13081b8f87a774c
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a common lure of free game hacks and generators, specifically targeting Roblox players. It impersonates Microsoft to build trust, but directs users to malicious redirectors hosted on `netcdn.xyz` and other domains. These redirectors likely serve further malicious content or phishing pages, as indicated by the critical heuristic firings for malicious redirector links and brand impersonation for credential phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-2all-win-hack-game-hack.
  • 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-2all-win-hack-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-jailbreak-money-hack-check-cashed.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/dominokid123-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacking-my-friends-roblox-account.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-wall-hack-for-mac.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-cheat-source-leaked.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/robux-hackhttps-pastebincom-mc23cpnm.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-tool-paste.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-buildermans-password-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-clone-tycoon-v-12-cheats.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/mobilehacks4u-free-roblox.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.

FilenameKindSourceSize
stream_003_off00004098.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4098 26728 bytes
SHA-256: 5654146810b4ef7a416840354f1023f496529e80c50ffd66c28b951ae6573b32
font_01_sfnt_off00007e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5C 18624 bytes
SHA-256: ef29d5315a05a09d76eeef48cb8d724d78d75d90a5d637a2c6531bfa90986479

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