Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e76dc7a043b6dab…

MALICIOUS

PDF

41.9 KB Created: 2021-05-02 01:17:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d248f29dd02ecf93b30ce386194a2ea0 SHA-1: eeb64690e20171ee170c4edb6a9e873a207f82ba SHA-256: 8e76dc7a043b6dab31d0b53a6a9e018618fd05aa865f6403b8df488e88fd1460
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-free-t-shirts-on-roblox-2021-game-hack PDF link annotation
    • https://fridaytravelnepal.com/userfiles/files/free-candy-20-roblox-hack.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-hack-roblox-with-v3rmillion.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-cloth-in-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/no-clip-hacks-roblox-wall-hack.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-robux-codes-december-2021.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/hacks-in-bee-swarm-simulator-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/new-hack-for-roblox-2021-novemeber.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/salvage-roblox-hacks.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/how-to-hack-skywars-roblox.pdfIn PDF document text
    • https://fridaytravelnepal.com/userfiles/files/free-roblox-executor-purple-bunny.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004199.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4199 27108 bytes
SHA-256: 979090d0971d490dff478f6a84faa3636097bb4de95fd1b78b3f626c438e3596
font_01_sfnt_off0000801f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801F 18904 bytes
SHA-256: 1922bfbdef17103dbfda94e7c0780b5ffb4deb68b669a556de7dee597144c5b4

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