Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebb8b3b252dbff1…

MALICIOUS

PDF

47.8 KB Created: 2021-05-20 00:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 91ff372df9217dc3dc743c5141d68515 SHA-1: c8bcc5c1673aadd85262e46b15808647318baeaa SHA-256: 2ebb8b3b252dbff1e45d5ed2f6e01173d81461d990877b7fbea11f728ebff6d5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous external links, many of which are SEO-optimized and point to pages offering game hacks and free in-game currency. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting these links, likely leading to malware downloads or further exploitation. The document body itself contains a primary URL for a Minecraft hack, reinforcing the lure.

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/479516143/minecraft-free-download-mac-full-version-game-hack
    • http://www.aqas.it/images/legit-coin-master-hack-october-2021_GM406889139.pdf
    • http://www.aqas.it/images/free-400-spins-coins-master_GM406889139.pdf
    • http://www.aqas.it/images/http-bitly-coin-master-free-2021-spins_GM406889139.pdf
    • http://www.aqas.it/images/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://www.aqas.it/images/coin-master-hack-apk-july-29_GM406889139.pdf
    • http://www.aqas.it/images/is-roblox-free-on-pc_GM431946152.pdf
    • http://www.aqas.it/images/coin-master-free-spins-coins_GM406889139.pdf
    • http://www.aqas.it/images/apps-for-free-robux_GM431946152.pdf
    • http://www.aqas.it/images/roblox-hack-2021_GM431946152.pdf
    • http://www.aqas.it/images/coin-master-hack-no-survey_GM406889139.pdf
    • http://www.aqas.it/images/coin-master-hack-mod-apk-download_GM406889139.pdf
    • http://www.aqas.it/images/pubg-uc-whatsapp-group_GM1330123889.pdf
    • http://www.aqas.it/images/earn-free-robux-for-roblox_GM431946152.pdf
    • http://www.aqas.it/images/minecraft-iphone-free_GM479516143.pdf
    • http://www.aqas.it/images/hack-coin-master-343-apk_GM406889139.pdf
    • http://www.aqas.it/images/free-robux-websites-that-work_GM431946152.pdf
    • http://www.aqas.it/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • http://www.aqas.it/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdf
    • http://www.aqas.it/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdf
    • http://www.aqas.it/images/coin-master-hack-apk-no-fb-login_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d2e.bin
553b0c95d23393e9c1edd2fb166cf84e635eed60d1b3de99b66b59f6716f1b49
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D2E 30164 bytes
font_01_sfnt_off00008d49.bin
801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D49 3128 bytes
font_02_sfnt_off00009789.bin
574dcfe716694b9e694caafd459ab3045eb2e03b00ed18be0723273a3324c3f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9789 18564 bytes