Malicious PDF — malware analysis report

Static analysis result for SHA-256 582e8a4a9b23f160…

MALICIOUS

PDF

43.0 KB Created: 2021-05-12 23:44:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 50c263ab88c58c4b9212968687d66c6f SHA-1: 5aca537f5a3a471382f8841f00b1fc0567925c82 SHA-256: 582e8a4a9b23f16013568a93a36b54f712f1d6767beb955803876b85c418d8c5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to pages offering game hacks and free spins. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external URIs suggests a link farm designed to redirect users to potentially harmful sites. The document body, though partially corrupted, contains references to game hacks and a URL that likely serves as a landing page for malware or phishing.

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/406889139/free-spins-coin-master-app-game-hack
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/synapse-roblox-free_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-android-apk_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-spins-coin-master-legit_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-free-food_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/how-to-free-robux_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-blogspot_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-roblox-cards-pin-number_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-passwords_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-apk_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/how-to-make-a-roblox-group-for-free_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/roblox-c9m_GM431946152.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-coins-coin-master-ios_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-client_GM479516143.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-coins-coin-master-link-2021_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-2021_GM406889139.pdf
    • https://elearning.mtsn2jember.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c99.bin
9e7a575094a5624a1a6c8e68ad39a29a2555bcaaa23e148f87f1f9ffd418d050		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C99 25716 bytes
font_01_sfnt_off000086d2.bin
ed1ea3c4e7635b9f65a5e0b6798c92341d7c1feababf17669f4466b6be8364ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86D2 17884 bytes

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