Malicious PDF — malware analysis report

Static analysis result for SHA-256 033b8e2ce4c2af2d…

MALICIOUS

PDF

46.5 KB Created: 2021-05-15 23:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 247924109f746254d0bf21948c34fb79 SHA-1: 6a37c06b8a6d4b1417a8d293af4f5460eba9bb3a SHA-256: 033b8e2ce4c2af2d901fe94159dff89968cb5c2a0394f1ec769c8197818330bc
102 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm, pointing to websites offering hacks and cheats for games like Coin Master. The document body and extracted URLs strongly suggest a phishing or scam attempt to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-hack-without-human-verification-2021-game-hack
    • http://scuttworksdesigns.us/images/coin-master-spin-cheat_GM406889139.pdf
    • http://scuttworksdesigns.us/images/free-money-links-coin-master_GM406889139.pdf
    • http://scuttworksdesigns.us/images/free-robux-come_GM431946152.pdf
    • http://scuttworksdesigns.us/images/coin-master-free-coins--spins_GM406889139.pdf
    • http://scuttworksdesigns.us/images/hack-coin-master-using-pc_GM406889139.pdf
    • http://scuttworksdesigns.us/images/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://scuttworksdesigns.us/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdf
    • http://scuttworksdesigns.us/images/games-that-can-be-hacked_GM431946152.pdf
    • http://scuttworksdesigns.us/images/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://scuttworksdesigns.us/images/coin-master-free-spins-without-human-verification_GM406889139.pdf
    • http://scuttworksdesigns.us/images/how-to-get-free-robux-com_GM431946152.pdf
    • http://scuttworksdesigns.us/images/funbloxxyz-free-robux_GM431946152.pdf
    • http://scuttworksdesigns.us/images/robux-generator-no-human-verification-or-survey_GM431946152.pdf
    • http://scuttworksdesigns.us/images/coin-master-hack-blogspot_GM406889139.pdf
    • http://scuttworksdesigns.us/images/coin-master-hack-unlimited-spins-apk_GM406889139.pdf
    • http://scuttworksdesigns.us/images/free-robux-redeem-codes-2021_GM431946152.pdf
    • http://scuttworksdesigns.us/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdf
    • http://scuttworksdesigns.us/images/rbxoffers-earn-free-robux_GM431946152.pdf
    • http://scuttworksdesigns.us/images/free-coins-for-planet-master-game_GM406889139.pdf
    • http://scuttworksdesigns.us/images/hack-coin-master-for-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cdd.bin
535a1e2c31765883681eb5943729b0c879ecbee2e285d0c3c52b257c7045236c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CDD 25352 bytes
font_01_sfnt_off000086de.bin
d0b606b5e07206d9cf09251d124dd787bde8cd589aac73187f9aa1c9c7b7b0b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x86DE 2968 bytes
font_02_sfnt_off00009124.bin
9d151cd353acbc916f7f6eb107110adb70143b0a6a415e6841dd022ecfd31ccb
pdf-font-stream PDF embedded font (sfnt) at offset 0x9124 19016 bytes