Malicious PDF — malware analysis report

Static analysis result for SHA-256 d156d64c001351e4…

MALICIOUS

PDF

35.7 KB Created: 2021-07-09 08:11:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8e7f5e3bf8d226a340db590ab4812558 SHA-1: c85fe3ee88e95296b9b2ce69b9db109c6c29617b SHA-256: d156d64c001351e4ced7fca9b1d6a3285c2cbfacf73d8a504e2b28723ba2e7d4
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which are structured as SEO-optimized URLs pointing to files related to game hacks and cheats for popular games like Coin Master and Roblox. The presence of a direct download URL and the overall structure strongly suggest a phishing or malware distribution attempt, likely aiming to trick users into downloading unwanted or malicious software.

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/406889139/coin-master-free-spins-hack-2021-game-hack
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/being-a-hacker-in-roblox_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-robux-hack-youtube-pc_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-spins-from-coin-master_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-ios_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-coinmaster-spins_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/daily-coin-master_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/coin-master-free-spin-software_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/newo-ico-roblox-free-robux_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/minecraft-free-download-unblocked_GM479516143.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/bloxpink-free-robux_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/coin-master-200-spin-link_GM406889139.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/free-tiktok-fans-no-verification-2021_GM835599320.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-ipad-mini-2021_GM431946152.pdf
    • http://elearning.mtsn2lamtim.sch.id/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000337a.bin
ea2354e4f21f0195f41e6d640a88e6b17bf5c86bf4bcc1c7de02943656084019		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x337A 23092 bytes
font_01_sfnt_off00006787.bin
4f32b14f246b44eaba0400620f01c91865c601ae222e2b66ea15b73a2cdec045		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6787 18748 bytes

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