Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75316d5375d215d…

MALICIOUS

PDF

46.9 KB Created: 2021-06-11 09:06:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 182970d03cfd1dd5c63d8e2b0525d7ff SHA-1: 6a440e60f26e1d6efa8f3108d68deb8839c0caed SHA-256: d75316d5375d215d9f1bead8cb8bd52745d8120e7acda0b9e028ab3febc1d700
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that direct users to websites promising free game rewards. The document body and extracted URLs suggest a lure for phishing or scamming users into visiting potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious intent to redirect users, likely as part of a broader phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/how-to-get-robux-without-paying-or-hacking-game-hack
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-rewards-free-spins_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-free-spin-game_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-spins-coin-master-generator_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/rape-simulator_GM431946152.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-spin-link_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/roblox-robux-hack-android_GM431946152.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-spins-for-coin-master-game_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-coins-and-spins-in-coin-master_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/sites-for-free-spins-for-coin-master_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/coin-master-cheat-apk-free-download_GM406889139.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/free-minecraft-com_GM479516143.pdf
    • http://mansatupati.my.id/__statics/gudangsoal/files/grabpoints-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005443.bin
0d886a099da2a84f32d7b56a05868eda49fc6fbe13ea22714cedc4c1212c40a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5443 25988 bytes
font_01_sfnt_off000090a9.bin
1b262e25380a2b6064352352e7a7d39673cedaecf7bf97661f538efa14d713c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90A9 19624 bytes

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