Malicious PDF — malware analysis report

Static analysis result for SHA-256 427800014b15e7bd…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 16:08:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e7587ddf242c5c6dcc3f99e93e6a227e SHA-1: 24faf40c72d77f1a80610ceba6923c8bc522f4f3 SHA-256: 427800014b15e7bd30d5110d117f9ea59afa686d1cdc17430fdafa636b48f3b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a primary focus on luring users with 'free Robux' and game hack generators. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs indicate a social engineering tactic likely leading to a scam or malware download, aligning with spearphishing attachment techniques.

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/free-robux-builders-club-game-hack PDF link annotation
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-to-get-free-stuff-on-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-back_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-to-hack-robux-with-inspect-element_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/blackberry-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/tbc-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/roblox-free-mac-exploiter_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/como-instalar-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/getrobux-come_GM431946152.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_off00003075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3075 22072 bytes
SHA-256: bec1d99dd0362a1c976101696b9bcee76fdbb17ee03490149a406db3bbe4fb91
font_01_sfnt_off00006179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 19084 bytes
SHA-256: f09bc62f005997a04ad5080f4ee33ac6572590954f76203002519eb18e21aa36

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