Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ccdd8e3140eb935…

MALICIOUS

PDF

48.2 KB Created: 2021-05-14 01:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fe333dcc80d1f8b17560d715231cb34b SHA-1: dabca4a0d622d649e5e6543e761e8bd629d755ca SHA-256: 9ccdd8e3140eb935c6cb0db235898e12b8bd465d2e4b17a328698ed970699303
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, presented as a link farm, that promise free in-game currency or cheats for popular games like Coin Master and Roblox. The document body and extracted URLs suggest a lure to trick users into visiting malicious websites. The presence of external URIs and a high ML score indicate a malicious intent, likely to lead users to phishing sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/get-free-spins-on-coin-master-2021-game-hack
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/get-robux-com_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/rbx-free-robux_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/chisel-and-bits-mod-minecraft-pe_GM479516143.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-free-download-for-android_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/download-coin-master-hack_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/free-minecraft-skins_GM479516143.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/free-roblox-hack_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-hack-mcpe-master-coins_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/coin-master-game-hack-app-download_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/minecraft-hack-download_GM479516143.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • https://elearning.man3kuningan.sch.id/__statics/gudangsoal/files/robux-hack-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d04.bin
7f6b6906cc7e4170f32ce11ee39fdea696ed00de88846e31bd4f1ecafd88304c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D04 27548 bytes
font_01_sfnt_off00008c47.bin
948b45e2b0382fe6dc69ad1dc3ef255c94f935c3ead7fbdc4f162620b2a8a843		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C47 4056 bytes
font_02_sfnt_off00009a15.bin
51edae499e96af11139ef94313efcbf906f73cd888d739ca20624da83f1b55af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A15 18288 bytes

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