Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d58b1b1f6224f9…

MALICIOUS

PDF

45.9 KB Created: 2021-06-11 05:36:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: baeec1b0af0fd1991164426e22abe7b2 SHA-1: 7ea97316dd3cc96a62031d557d9ea9226da8cb85 SHA-256: 60d58b1b1f6224f9a93911e76560620defc4dafd16cc277750b202ba16136294
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links and a specific URL that promote free game-related items, strongly suggesting a lure for users to download further content. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are likely part of a link farm designed to attract traffic. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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/431946152/1k-robux-free-game-hack
    • http://killebergsridsport.se/images/free-printable-minecraft-coloring-pages_GM479516143.pdf
    • http://killebergsridsport.se/images/free-spin-and-coin-blogspot_GM406889139.pdf
    • http://killebergsridsport.se/images/coin-master-hack-app-link_GM406889139.pdf
    • http://killebergsridsport.se/images/how-to-get-minecraft-for-free-ios_GM479516143.pdf
    • http://killebergsridsport.se/images/coin-master-2021-free-spins-link_GM406889139.pdf
    • http://killebergsridsport.se/images/coin-master-free-spins-link-download_GM406889139.pdf
    • http://killebergsridsport.se/images/how-to-get-free-robux-hack_GM431946152.pdf
    • http://killebergsridsport.se/images/roblox-free-robux-hack_GM431946152.pdf
    • http://killebergsridsport.se/images/roblox-free-robux-website_GM431946152.pdf
    • http://killebergsridsport.se/images/free-roblox-website_GM431946152.pdf
    • http://killebergsridsport.se/images/how-to-get-free-robux-no-survey_GM431946152.pdf
    • http://killebergsridsport.se/images/how-to-tell-if-your-roblox-account-is-hacked_GM431946152.pdf
    • http://killebergsridsport.se/images/cheats-for-dragon-ball-rage-roblox_GM431946152.pdf
    • http://killebergsridsport.se/images/blox-fish-free-robux_GM431946152.pdf
    • http://killebergsridsport.se/images/coin-master-heaven-free-spins-link_GM406889139.pdf
    • http://killebergsridsport.se/images/coin-master-free-spin-and-coin_GM406889139.pdf
    • http://killebergsridsport.se/images/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
    • http://killebergsridsport.se/images/links-for-coin-master-free-spins_GM406889139.pdf
    • http://killebergsridsport.se/images/is-minecraft-earth-free_GM479516143.pdf
    • http://killebergsridsport.se/images/roblox-hack-scripts-2021-powerplat_GM431946152.pdf
    • https://www.roblox.co
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f24.bin
5923c59bf04c4eac02cff003c60df35ebb4922778ef672ec41460533da870edf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F24 24192 bytes
font_01_sfnt_off00008675.bin
02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8675 2912 bytes
font_02_sfnt_off00009072.bin
454670ef39d20d2fe0ba3a5264de6f85de00fe219085ffdb8a0782d2475cca31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9072 18288 bytes

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