Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b2b8d7f63ce5fe4…

MALICIOUS

PDF

39.5 KB Created: 2021-05-21 15:53:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5f6a279e1f797cb47d197774773eb917 SHA-1: b57b4a141cf9789ae84799a665301b0a56561331 SHA-256: 4b2b8d7f63ce5fe4f67c5e482bde47fbcb671dfbf042728eab73656101b2ac48
82 Risk Score

Malware Insights

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

The PDF document contains social engineering lures, including a fake download button and instructions to execute a command, consistent with ClickFix attacks. It also embeds multiple URLs pointing to potentially malicious content, such as game hacks and cheats. The primary external URI leads to a Minecraft hack download, indicating a likely attempt to trick users into downloading and executing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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-ios-no-verification-game-hack
    • http://elearning.mtsn2skh.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-free-coins_GM406889139.pdf
    • http://elearning.mtsn2skh.sch.id/__statics/gudangsoal/files/roblox-hack-generator_GM431946152.pdf
    • http://elearning.mtsn2skh.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://elearning.mtsn2skh.sch.id/__statics/gudangsoal/files/roblox-hacks-and-cheats_GM431946152.pdf
    • http://elearning.mtsn2skh.sch.id/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdf
    • https://freegiftcodes.eu
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003673.bin
0e34872406d074f943e85c59d2328a349a06ec61883008cbd9e539f6a9259cbc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3673 25696 bytes
font_01_sfnt_off0000707d.bin
787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707D 2840 bytes
font_02_sfnt_off00007a3c.bin
314c8825a4d06e03bd849bd4cad10bf883abec19d637afa4c41587c94f1a0a3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3C 17844 bytes

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