Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c52a27f0223a016…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 10:14:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 70bc1b9e7376a1b0681fc456f0b7f0f9 SHA-1: ba1d24020fbcb2be7d2f4feb0b3b582fe4d3edc7 SHA-256: 3c52a27f0223a016668ebca4bc197149c4dce81d4729eb87502bcde0798f8b37
102 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, identified as a link farm, pointing to websites offering game cheats and free in-game items. The ML classifier strongly flagged this PDF as malicious, and the presence of a "download button" heuristic suggests a deceptive call to action. The primary IOC is the external URI leading to a potential exploit or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/how-do-i-get-robux-game-hack
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app-android_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-free-gifts_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-daily-free-link_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-ps4_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-hack_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-app_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-hack-twitter_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-download_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/blogger-coin-master-free-spins_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-haktuts_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-hack-here_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-robux-instantly_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aca.bin
38164edf955f6d595816e5eb6cb5abc3e520eccbe1df5b29b349a42114f721db		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACA 27108 bytes
font_01_sfnt_off000086d0.bin
76696481b4f85a4b134e50273d4f72d60bf885136cdb061a204ba21e520483fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86D0 18284 bytes

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