Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bcd9d99124f4ba1…

MALICIOUS

PDF

41.2 KB Created: 2021-05-17 02:47:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6192ea4b636ef3de3b80c757e25c435c SHA-1: e98676752af1f4a5f4e656d9e9a586c3b573f4a8 SHA-256: 2bcd9d99124f4ba1aca75d45e7786994558c384a203b062d88e90757206f32ca
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, pointing to websites offering free in-game items and hacks. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a social engineering attack to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/free-minecraft-website-game-hack
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-facebook_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/can-you-earn-robux_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/minecraft-survival-free_GM479516143.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-coins-coin-master-blog_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/master-coin-free-spin-daily_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/give-me-free-robux_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-hack-activegamer_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-coins-coin-master-daily_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-fun-hack_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/how-to-get-roblox-money_GM431946152.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdf
    • http://elearning.mtsn4sda.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049d2.bin
21bcbbb416e66c593bf6381169a938f7b720db0f3715ccaac7dce9fccc06d83a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D2 23904 bytes
font_01_sfnt_off00007fc4.bin
ff8b7dbb958b2e21889f0de65becea477e8c4948e76fdf7eea045243f3f10d1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC4 17924 bytes

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