Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e06b64e2d9b89be…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 10:07:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 35f699177b211a4f6cd3314330dda474 SHA-1: 2bf066d6373b5e2a728d7a2132f826c7bb2cf962 SHA-256: 7e06b64e2d9b89be97bd9e3a78881734296e1c767e9d4b9b11ca9ed60e0bfdf0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a large number of external links, many of which are presented as download resources for game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-like URLs suggests a link farm designed to distribute malware or lead users to phishing sites. The document body and extracted URLs indicate a lure for game-related exploits.

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.co/app/431946152/how-to-hack-almost-any-game-roblox-game-hack
    • http://elibrary.smknesbu.sch.id/repository/roblox-download-android-free_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-pet-treats-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-not-fake-app_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/promo-codes-make-robux-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-javascript-hack-pastebin_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-coin-master-cards-link_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-any-roblox-account-script_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-online-cheats-tool_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-robux-hack-2021-cheat-engine_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-no-survey-or-human-verification_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/ww-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-guide-to-free-spins-and-rewards_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-rocket-fuel-in-roblox-jailbreak_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-accounts-roblox-passbin_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-giveaway_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/urbis-roblox-money-cheat_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/robux-hacks-without-downloading-apps_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e23.bin
64c401155a28ae76cfaf15d7e9ba06159e9140e2a0c624d23b27a5e0c99a2498
pdf-font-stream PDF embedded font (sfnt) at offset 0x2E23 22468 bytes
font_01_sfnt_off00006047.bin
ab3d306426b1f403d6f14da6dfb90341e15d2dd088d885e92e03b3d64e620018
pdf-font-stream PDF embedded font (sfnt) at offset 0x6047 19364 bytes