Malicious PDF — malware analysis report

Static analysis result for SHA-256 960721f7d455107f…

MALICIOUS

PDF

45.0 KB Created: 2021-05-15 17:09:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ce8f7441a29ba31ad164d8eb313ade20 SHA-1: a681e1c97d31297abec88f21272ca6b0e8429180 SHA-256: 960721f7d455107f8b6e120aeae312bd539c0c6f41bb7af746a4ac6edcef3f51
82 Risk Score

Malware Insights

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

The document contains multiple lures related to free in-game currency and items, directing users to external URLs. The presence of a 'ML_NYX_PDF_MALICIOUS' heuristic firing and the 'SE_MFA_LURE' suggest a phishing or credential harvesting attempt. The embedded URLs likely lead to a second-stage payload or a phishing page designed to steal user information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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/coin-master-free-link-today-game-hack
    • http://unionmusicaldebenidorm.com/images/free-robux-no-verify-2021_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/roblox-inappropriate_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/coin-master-daily-spin-free_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/coin-master-2021-free-spins-link-blogspot_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/free-robux-without-survey_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/blogger-coin-master-free-spins_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/best-minecraft-hacked-client-2021_GM479516143.pdf
    • http://unionmusicaldebenidorm.com/images/is-minecraft-free_GM479516143.pdf
    • http://unionmusicaldebenidorm.com/images/roblox-free-robux-codes_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/free-minecraft-skin-maker_GM479516143.pdf
    • http://unionmusicaldebenidorm.com/images/roblox-free-wings_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/free-roblox-generator-for-roblox_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/can-i-get-robux-for-free_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/demon-roblox_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/robuxfree-con_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/play-coin-master_GM406889139.pdf
    • http://unionmusicaldebenidorm.com/images/where-to-get-robux_GM431946152.pdf
    • http://unionmusicaldebenidorm.com/images/roblox-free-online-game_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a73.bin
5a56c9faa92a7fdb98c256abd107ef22d91f0ce19e31c69b53769f3dd07d9e08		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A73 24824 bytes
font_01_sfnt_off0000833e.bin
fdf27bef7aa9564438d2376e8add5cda7b2e668472cb3d9aeea2043e5db63d38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x833E 2960 bytes
font_02_sfnt_off00008d84.bin
ac7637c34b6ea6a17139aeea995219f6842183aaecfc204fce9d36f337c74847		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D84 18232 bytes

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