Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce60cbbbbcc0e38…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 03:34:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ce187e93e39fec03c3f3286f4ecd8a16 SHA-1: 6d5ed22b19928f631b27b48c64d78fb09954974d SHA-256: 5ce60cbbbbcc0e3805e5435a71884e9fd1bcb1838e46f6655c618999c151e695
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links to external websites, many of which are hosted on suspicious domains and offer game hacks or cheats. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or lead users to phishing sites. The document body explicitly mentions 'Get Free Robux' and includes URLs that reinforce this lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/get-free-robux-gg-game-hack
    • http://www.alsultantrading.ae/userfiles/files/como-hackear-la-cuenta-de-tus-amigos-roblox_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/coin-master-free-spins-link-june-2021_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/coin-master-ultra-attack-hack_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdf
    • http://www.alsultantrading.ae/userfiles/files/free-roblox-outfits_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/free-robux-on-phone_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-robux-2021-on-pc_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-on-bloxburg-for-free-on-roblox_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/11-4-2021-roblox-hack_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/tiktok-minecraft-hacks_GM479516143.pdf
    • http://www.alsultantrading.ae/userfiles/files/hacking-my-friends-roblox-account-ant_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/daily-free-spin-link-for-coin-master_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/free-robux-generator-no-verification_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/minecraft-app-store-free_GM479516143.pdf
    • http://www.alsultantrading.ae/userfiles/files/bux-free-robux_GM431946152.pdf
    • http://www.alsultantrading.ae/userfiles/files/free-spin-sites-for-coin-master_GM406889139.pdf
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-robux-2021-without-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f14.bin
bf122b02ffb005f2747e102632811f83c02faaac9f6c9e85d31dbb972d6fa844
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F14 22404 bytes
font_01_sfnt_off000060ee.bin
939eebabc2782028b138c731b49fe90b7b043b2dd7de89021f227a58667153f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x60EE 18820 bytes