Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f202d8e2155f7aa…

MALICIOUS

PDF

42.5 KB Created: 2021-05-20 01:02:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 408467fbe87140d39bcaa310840e8c01 SHA-1: 06bef561b54c8d3da41cc7a2842a7a0964cc392e SHA-256: 0f202d8e2155f7aa90694140cb0d9023ebba2fe9dde67f95c55430a1e70ab2b5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting it is designed to redirect users to external sites for malicious downloads or phishing. The document body and extracted URLs advertise free Robux and game hacks, a common lure for malware distribution. While no scripts were explicitly extracted, the PDF structure and extensive link farm indicate a high likelihood of malicious intent, potentially involving JavaScript for exploitation or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/free-robux-legit-game-hack
    • http://ims-77.fr/images/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdf
    • http://ims-77.fr/images/coin-master-no-download-app-but-play-for-free_GM406889139.pdf
    • http://ims-77.fr/images/what-is-a-minecraft-client_GM479516143.pdf
    • http://ims-77.fr/images/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://ims-77.fr/images/7-year-old-roblox_GM431946152.pdf
    • http://ims-77.fr/images/coins-master_GM406889139.pdf
    • http://ims-77.fr/images/coin-master-daily-free-spins-link-today-blog_GM406889139.pdf
    • http://ims-77.fr/images/daily-coin-master-free-spins_GM406889139.pdf
    • http://ims-77.fr/images/coin-master-free-coins-and-spins-link-today_GM406889139.pdf
    • http://ims-77.fr/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdf
    • http://ims-77.fr/images/roblox-army-free-robux_GM431946152.pdf
    • http://ims-77.fr/images/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://ims-77.fr/images/how-to-get-free-roblox_GM431946152.pdf
    • http://ims-77.fr/images/master-coin-free-spin_GM406889139.pdf
    • http://ims-77.fr/images/free-robux-apk_GM431946152.pdf
    • http://ims-77.fr/images/wurst-112_GM479516143.pdf
    • http://ims-77.fr/images/how-to-get-free-roebucks_GM431946152.pdf
    • http://ims-77.fr/images/how-to-get-free-robux-no-verification_GM431946152.pdf
    • http://ims-77.fr/images/coin-spin_GM406889139.pdf
    • http://ims-77.fr/images/coin-master-hacks-to-get-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000492c.bin
853e2e9e14b2b52a5e43863759f588fc50d113dfeb87a0dccede21960d68e022		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492C 25176 bytes
font_01_sfnt_off00008319.bin
aa02e962ea97e6ca8489eff7fd27dc9c81bb0b76c5ed523337a23ffa677521ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8319 18528 bytes

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