Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee7375d463ed97c…

MALICIOUS

PDF

39.9 KB Created: 2021-05-03 18:33:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d74484850d638cb891a8cc4b9db9118e SHA-1: e65c3671ee8e9f73235dba72f90bbfb81e9d4ade SHA-256: eee7375d463ed97c05cfcf33425e3ae0c28efd2f07f84706056810e78ba5e8da
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as free game hacks and t-shirts for Roblox. The document body, though partially corrupted, contains references to these lures and a primary malicious URL. The heuristics indicate a critical finding of malicious redirector links and a game hack lure, suggesting the document is designed to lead users to potentially harmful content or further malware downloads.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/best-meme-tshirts-on-roblox-free-game-hack In PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-free-shirts-and-pants-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-dragon-ball-after-future-clicker-script-hack.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-red-hoodie-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/bad-business-cheat-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/hack-ma-pin-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-robux-code-on-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-no-clip-hack-download-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-hack-roblox-accounts-abandon.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/terminal-railway-roblox-hack.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/roblox-jailbreak-hack-raspberry.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_off00003d60.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3D60 25576 bytes
SHA-256: 2b17d33254230edeb6072064e6df6cb62bfe2b9345ab79e69339951e3c5111e8
font_01_sfnt_off000078a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A4 18796 bytes
SHA-256: eae6c6faa94903a6aa7e90719188822a36aa0406b0160436a4dc0602a57be8a1