Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ebb7eeb2a0b341…

MALICIOUS

PDF

36.1 KB Created: 2021-06-19 23:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9faaa8cc6fcf2b547edba0f9d8f7d0a8 SHA-1: 201e7786a3d5862f4b152ebf8e6147fe32408d62 SHA-256: 84ebb7eeb2a0b341dfde1daec8a3aac7c4d799a8b43bf8372ea44561eefcf933
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to the URL http://netcdn.co/app/431946152/get-free-robux-without-doing-anything-game-hack. This URL is associated with a high-risk heuristic for game hack redirects. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt to trick users into visiting malicious sites.

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/get-free-robux-without-doing-anything-game-hack PDF link annotation
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/coin-game_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.interiormurahjogja.com/ckfinder/userfiles/files/how-do-you-hack-roblox_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_off000034b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B9 22344 bytes
SHA-256: 8ce5a7c7f92b04da0dbfd4493bdf24edf4b955397e9e15e032d317c0b8e875b0
font_01_sfnt_off00006646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6646 19652 bytes
SHA-256: d01fab7bff865e1e572a69531771b19011470ec9dd60cfeb54f37c62aa9fdbeb

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