Malicious PDF — malware analysis report

Static analysis result for SHA-256 3654795ba9453c51…

MALICIOUS

PDF

55.1 KB Created: 2021-06-11 04:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b8288c849b790ac896e3771f2451ab9f SHA-1: 09cd8fe799c7a064cd74310d026aef59b74b3822 SHA-256: 3654795ba9453c513576c92ccde7c6c13cfc2bd02950634f32a94b527b6b2778
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which are SEO-optimized and point to other PDF files, suggesting a link farm or redirection scheme. The presence of a ML classifier flagging the PDF as malicious and embedded URLs further support a malicious intent. The document body, though partially corrupted, contains a URL related to 'Roblox Promo Codes', indicating a potential lure for users interested in such topics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9497

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.tw/app/431946152/roblox-promo-codes-for-robux-2021-no-hacks-game-hack
    • http://www.travelone.ae/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-daily-rewards_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-hack-without-human-verification-india_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/free-spins-on-coin-master_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • http://www.travelone.ae/userfiles/files/free-minecraft-education-edition_GM479516143.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-hack-ios-download_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-iphone_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/free-roblox-generator-for-roblox_GM431946152.pdf
    • http://www.travelone.ae/userfiles/files/coin-master_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/minecraft-windows-10-free_GM479516143.pdf
    • http://www.travelone.ae/userfiles/files/oprewards-free-robux_GM431946152.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/robuxglobalcom-no-verification_GM431946152.pdf
    • http://www.travelone.ae/userfiles/files/minecraft-education-free_GM479516143.pdf
    • http://www.travelone.ae/userfiles/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-codes_GM406889139.pdf
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000506c.bin
787e498fc3d8f16bf311e7b666c5b995b035f7cd15dafcbe61e56b61edac8a41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x506C 31352 bytes
font_01_sfnt_off00009a7d.bin
94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A7D 2824 bytes
font_02_sfnt_off0000a427.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA427 5696 bytes
font_03_sfnt_off0000b139.bin
9ab9dd276bf0b1f2cbc500d15958f6a2f9ad1c6f0c6023597b643596ebdba10c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB139 19476 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.