Malicious PDF — malware analysis report

Static analysis result for SHA-256 75999328afcf9f18…

MALICIOUS

PDF

35.8 KB Created: 2021-07-09 07:46:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9bdb021a99d7bec69be0065391cc3152 SHA-1: af48e8387b1a847c61b100b5fe2c5e5bbbae2d03 SHA-256: 75999328afcf9f1841d22efadb94e0d5d026141f8dc4ebf00f0c5f9ebffc31e2
102 Risk Score

Malware Insights

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

This PDF document contains a large number of links, many of which point to pages offering free Robux or Coin Master hacks. The primary URL, http://netcdn.tw/app/431946152/https-oprewards-com-roblox-game-hack, is likely a landing page for a scam or malware distribution. The document's structure and content strongly suggest a phishing or social engineering attempt to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/https-oprewards-com-roblox-game-hack
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-2021_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-without-doing-anything_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/hacks-de-roblox-para-jailbreak_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-coin-master-spins-links-2021_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app-iphone_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/hacks-para-roblox-para-tener-rubux-infinitos_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-roblox-deadpool-suit_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-hack_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client-2021_GM479516143.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-hack-app_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins_GM406889139.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-mining-simulator-hack-2021_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-speed-hack-2021-june_GM431946152.pdf
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033a7.bin
f9c95f8680ec4ee078c0b5d4f107c9239ced462ac483475bbe361f75af141451		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33A7 22484 bytes
font_01_sfnt_off000065a3.bin
5a5caa3ea5a7450f5ada42000dea20375fa148f76b5cf036c4c04236d009ba0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65A3 19364 bytes

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