Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac159461902253be…

MALICIOUS

PDF

40.1 KB Created: 2021-04-26 05:06:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b9c7ddf42cabf8775a15e26e71416390 SHA-1: 1c639839c2b302e8d993a55920b92e32f5340b90 SHA-256: ac159461902253be06300fb922221441269c60063361c908712dc694a338d907
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains heuristics indicating it links to a game hack generator, a common lure for malicious content. The document body and embedded URLs reinforce this, pointing to sites offering 'Roblox hacks'. While no scripts were explicitly extracted, the PDF structure and linked URLs suggest an attempt to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • 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.
  • 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/artificial-intelligence-roblox-hack-streets-game-hack PDF link annotation
    • https://domc.tw/upload/files/rbx-earn-free-robux.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-free-vip-on-roblox.pdfIn PDF document text
    • https://domc.tw/upload/files/free-roblox-hack-in-jailbreak.pdfIn PDF document text
    • https://domc.tw/upload/files/aimbot-download-free-roblox.pdfIn PDF document text
    • https://domc.tw/upload/files/roblox-hack-robux-cheat-engine.pdfIn PDF document text
    • https://domc.tw/upload/files/roblox-guest-free.pdfIn PDF document text
    • https://domc.tw/upload/files/comment-cheat-sur-le-jeux-jailbreak-sur-roblox.pdfIn PDF document text
    • https://domc.tw/upload/files/roblox-how-to-hack-the-cataloug.pdfIn PDF document text
    • https://domc.tw/upload/files/hacking-tool-roblox.pdfIn PDF document text
    • https://domc.tw/upload/files/conquerors-3-roblox-cheats.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

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_off000040a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40A4 24820 bytes
SHA-256: 897f59e05424a6399d610455b5e8d43170db8571b3f1f2ed5ccb0b1429c12721
font_01_sfnt_off0000799d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799D 18692 bytes
SHA-256: 8d524e8bda1a8c3210ec93d30a19c324f48a1bee31172420fb859274ca1d03af

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