Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3dbd24a8b62694…

MALICIOUS

PDF

46.3 KB Created: 2021-05-15 02:20:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2c8d1f768156e040d94c518c5097f7f6 SHA-1: 3b5c030b457ec084e5bb403b3061e967f76da3a5 SHA-256: 0e3dbd24a8b626944dbf66a387a7f436dc6c27f65d38378e5272fcf390a3ad46
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, many of which are disguised as legitimate download pages for game-related hacks and cheats. The presence of a large number of external links, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or malware distribution attempt. The document body itself contains garbled text but includes URLs that are likely part of a link farm designed to attract users searching for game exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9278

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/sb-game-hacker-coin-master-game-hack
    • http://bassacctaxservices.com/images/who-to-get-free-robux_GM431946152.pdf
    • http://bassacctaxservices.com/images/free-robux-cards_GM431946152.pdf
    • http://bassacctaxservices.com/images/how-to-get-free-robux-instantly_GM431946152.pdf
    • http://bassacctaxservices.com/images/coin-master-free-coins-hack_GM406889139.pdf
    • http://bassacctaxservices.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdf
    • http://bassacctaxservices.com/images/free-robux-no-gift-card_GM431946152.pdf
    • http://bassacctaxservices.com/images/does-coin-master-hack-work_GM406889139.pdf
    • http://bassacctaxservices.com/images/roblox-redeem-card-codes-free_GM431946152.pdf
    • http://bassacctaxservices.com/images/minecraft-pe-hack-client-ios_GM479516143.pdf
    • http://bassacctaxservices.com/images/free-robux-hack-2021_GM431946152.pdf
    • http://bassacctaxservices.com/images/how-to-get-robux_GM431946152.pdf
    • http://bassacctaxservices.com/images/coin-master-free-spins-haktuts_GM406889139.pdf
    • http://bassacctaxservices.com/images/www-roblox-com-free-robux_GM431946152.pdf
    • http://bassacctaxservices.com/images/coin-master-mod-version-free-download-v344_GM406889139.pdf
    • http://bassacctaxservices.com/images/free-roebucks-no-human-verification_GM431946152.pdf
    • http://bassacctaxservices.com/images/free-robux-generator-no-human-verification_GM431946152.pdf
    • http://bassacctaxservices.com/images/coin-master-hack-tool-exe_GM406889139.pdf
    • http://bassacctaxservices.com/images/coin-master-free-spins-links-app_GM406889139.pdf
    • http://bassacctaxservices.com/images/minecraft-survival-hacks_GM479516143.pdf
    • http://bassacctaxservices.com/images/free-robux-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004adc.bin
0a3d09bee2ecf265bd3e83208294bd68896cd7ad2df88f1b817c76aba0a2be9e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ADC 26544 bytes
font_01_sfnt_off0000865c.bin
c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x865C 3560 bytes
font_02_sfnt_off000092e1.bin
c585062877f4224fcb1f1dfb3d6ea7b2a259284f2f9e680e0c2fd59b45efc3d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E1 18136 bytes

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