Malicious PDF — malware analysis report

Static analysis result for SHA-256 130b9cfd3be1d893…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 20:32:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 63216a4c910055a3e3747a52117161e7 SHA-1: 2756ee6dde6c1fa340c0fac58d22a4fe4f272d62 SHA-256: 130b9cfd3be1d893f0f4af294fce7bc61977ed88e07a397c3b99ef98e5020425
82 Risk Score

Malware Insights

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

The PDF document contains a lure related to free Minecraft texture packs and directs the user to a malicious URL. The 'SE_CLICKFIX' heuristic indicates that the document likely instructs the user to execute a command, further supporting a social engineering attack. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-minecraft-texture-packs-java-game-hack
    • https://www.lauresa.de/images/op-rewards-free-robux_GM431946152.pdf
    • https://www.lauresa.de/images/robux-fun-hack_GM431946152.pdf
    • https://www.lauresa.de/images/roblox-generator-no-human-verification_GM431946152.pdf
    • https://www.lauresa.de/images/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • https://www.lauresa.de/images/bloxpage-free-robux_GM431946152.pdf
    • https://www.lauresa.de/images/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • https://www.lauresa.de/images/minecraft-free-download-android_GM479516143.pdf
    • https://www.lauresa.de/images/www-claim-gg-to-earn-free-robux_GM431946152.pdf
    • https://www.lauresa.de/images/coin-master-hack-xyz-2021_GM406889139.pdf
    • https://www.lauresa.de/images/minecraft-pe_GM479516143.pdf
    • https://www.lauresa.de/images/free-coins-and-spins-coin-master_GM406889139.pdf
    • https://www.lauresa.de/images/coin-master-free-gold-cards-link_GM406889139.pdf
    • https://www.lauresa.de/images/coin-master-hack-ios-2021_GM406889139.pdf
    • https://www.lauresa.de/images/earn-free-robux-today_GM431946152.pdf
    • https://www.lauresa.de/images/free-robux-games-on-roblox_GM431946152.pdf
    • https://www.lauresa.de/images/how-to-hack-minecraft_GM479516143.pdf
    • https://www.lauresa.de/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • https://www.lauresa.de/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
    • https://www.lauresa.de/images/earn-rbx_GM431946152.pdf
    • https://www.lauresa.de/images/roblox-com-r_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004abe.bin
df47de26a2eef9c5aee2ca848f83bbd181da33cbefb8da13ce8a78f644ec6c71		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ABE 25712 bytes
font_01_sfnt_off000083f9.bin
686fb3e1785c5679fc7febae081669fb57112988378368078b360718af0d5a6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83F9 18520 bytes

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