Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a86eb9ad93aa599…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 19:11:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1c833aed5de15efe39782e284201035d SHA-1: e13d5054a9d76f2c71bcece0d076b9365b77c0aa SHA-256: 7a86eb9ad93aa59965594e595f75fbf17303f3858dac487e5df047e697083647
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, as indicated by the PDF_URI and EMBEDDED_URL heuristics. The document body and extracted URLs suggest a lure for game hacks and cheats, aiming to direct users to potentially malicious websites. The ML classifier also strongly flagged this PDF as malicious.

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/free-roblox-animations-game-hack
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download-for-android_GM406889139.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/free-spin-coin-master-game_GM406889139.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/how-to-get-free-minecoins-in-minecraft_GM479516143.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/how-to-hack-someone-roblox-account-2021_GM431946152.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spins_GM406889139.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/hacks-roblox-jailbreak-mode_GM431946152.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-passwords_GM431946152.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/how-can-i-get-robux_GM431946152.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/denis-daily-how-to-get-free-robux_GM431946152.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-no-human-verification_GM406889139.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/free-robux-please_GM431946152.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-fan-club_GM406889139.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-free-spins-usa-2021_GM406889139.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/minecraft-cheats-pc-2021_GM479516143.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/promo-codes-to-get-free-robux_GM431946152.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdf
    • http://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/free-minecraft-mods-for-ps4_GM479516143.pdf
    • https://elearning.man1indramayu.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fc8.bin
e13b10bea7dc2adc76f11d67afa8c79d42fd9f43c0c9901c8516fa5cb9187af6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC8 22200 bytes
font_01_sfnt_off000060e6.bin
82cf62e69a15f895d731bdc533c0a276dba0a7bdea57113a0433dd5b617bb9b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E6 19132 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.