Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a33323a4e894bd3…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 16:34:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: be5519cc486b5b84d026c6fe910acfde SHA-1: f92c7c04fb71e4f30455a08bb9a0f213ba35f37e SHA-256: 5a33323a4e894bd30c913dcd64dbab26553d3224059164538b4a625fee1e1428
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and a lure related to game hacks and generators, specifically mentioning 'free Minecraft Bedrock'. The primary link, http://netcdn.tw/app/479516143/free-minecraft-bedrock-game-hack, is flagged as a high-risk lure. This suggests the document's purpose is to trick users into visiting malicious sites that likely distribute malware or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/free-minecraft-bedrock-game-hack PDF link annotation
    • https://loba.com.vn/public/upload/files/roblox-shirt-codes-free-shipping_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/speed-hack-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/hack-script-fame-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-robux-without-human-verification-on-ios_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/get-free-money-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/flying-hacks-for-roblox-survivor_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/como-hackear-roblox-android_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/cheat-code-money-for-roblox_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/body-building-roblox-weightlifting-hack_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/free-wings-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/roblox-free-download_GM431946152.pdfIn PDF document text
    • https://loba.com.vn/public/upload/files/cmaster-club-coin-master-hack-tool_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_off00003196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3196 22180 bytes
SHA-256: 67ef8e510220ced0b18729abbe5253ff9ec00f2b567f133d10b9d806a0025559
font_01_sfnt_off000062d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D7 18560 bytes
SHA-256: 8a1cf310a32837577002de6ae703504663fc8f6c74f3557264522e251e416ebe