Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb889ff7372abd43…

MALICIOUS

PDF

44.2 KB Created: 2021-05-16 18:22:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7bed34d1c8a4b982fcf7a5e23e2c5d49 SHA-1: 5442af966222e8068aad787c18e7e0f84e7c580e SHA-256: fb889ff7372abd43a028e5066bb22b2afe44ec25c78cc0254202e7519d3a31f1
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are SEO-optimized and point to game-related content, suggesting a link farm or phishing attempt. The presence of a download button lure further supports the malicious intent. The primary URL, https://netcdn.xyz/app/406889139/download-coin-master-free-spins-link-2021-today-game-hack, is likely the intended destination for users seeking game cheats or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/download-coin-master-free-spins-link-2021-today-game-hack
    • http://www.himalassociation.org/himal/ck_image/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-attack_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-roebucks-no-human-verification_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-spins-coin-master-hack_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/how-to-robux_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-daily-spins-coin-master_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-spin-today_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-spins-a2z-help_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
    • http://www.himalassociation.org/himal/ck_image/files/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/roblox-printables-free_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/coins-master_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-spin-hack-2021_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/hack-coin-master-apk-2021_GM406889139.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-robux-games-that-actually-work_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/robux-hack-tools_GM431946152.pdf
    • http://www.himalassociation.org/himal/ck_image/files/free-spins-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e91.bin
7ae5da866267de9ac79a3d60c7320a887b6735b8de2edd4dc63f4e011856a9c0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E91 25140 bytes
font_01_sfnt_off00008774.bin
525b4923e2ec08582fc0eec02dda3c6a08e890396aaafa489cf9c2f67061961a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8774 19220 bytes

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