Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2af6f0edb58e90…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 10:44:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 661a0729659819dcbdbd6df057f44da0 SHA-1: 55d7a4b406c3893ef2c092207f447f57adba8be5 SHA-256: 5d2af6f0edb58e903c6b251686403783b00a234065e95d218a3607cd2611bded
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free Robux for the game Roblox, directing users to a malicious URL. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this intent. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, and the presence of external URIs suggests a potential for further malicious activity such as downloading a second-stage payload.

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.co/app/431946152/do-new-roblox-playe4e-get-robux-for-free-game-hack PDF link annotation
    • https://javisintlmedia.com/images/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-accounts-ebay_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/robux-hack-bc_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/pokemon-go-free-pokecoins-xyz_GM1094591345.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-robux-hacks-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-btools-press-n-script-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/what-is-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-bee-swarm-simulator-hacks_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/abd-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-download-for-android_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/cheat-engine-ganar-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-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_off00002f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2C 22152 bytes
SHA-256: b5f58ba2e3d6836ef8e2ab3bacaaed354e3f3080f42f9ba7452219db568d808a
font_01_sfnt_off00006087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6087 19620 bytes
SHA-256: bb2917c826fb017d912364c2895c8cec9c48e7c75ee4a639eba1f9c648947b4a

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