Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0608508382172f…

MALICIOUS

PDF

35.0 KB Created: 2021-05-20 21:11:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d456e9beea30495f0fe4a96fa8f65068 SHA-1: ed5b60301a5f845a7a6b3a3dea8489a5a33adc58 SHA-256: 0e0608508382172f64ee0671113c514aea1d03c233b80f69dfdd5a8d76d1d2a2
200 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and lures users with a fake CAPTCHA and "free generator / game hack" content. The primary malicious link identified is https://netcdn.xyz/app/431946152/roblox-free-robux-com-game-hack, which is associated with a game hack lure. The document's structure and embedded links suggest an attempt to trick users into visiting malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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-free-robux-com-game-hack In PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://www.dc-itsolutions.com/userfiles/files/free-spins-coin-master_GM406889139.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
font_00_sfnt_off00003145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3145 23800 bytes
SHA-256: c313e9b3a7df2f6e4b3c6523dc523115d5708034ff030fd16ccdf4c1f8ea2960
font_01_sfnt_off00006778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6778 18348 bytes
SHA-256: ea71f63ad969ac354b647f6e6da4581b14ed625e24a3109b04dcf91fda1e68c2