Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe5259a53bb176af…

MALICIOUS

PDF

36.1 KB Created: 2021-07-05 13:32:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 68cb90910821a80658c3b9edf313d305 SHA-1: 7bfdae90325150c8c8161a95e5a87d2554d0f484 SHA-256: fe5259a53bb176af2af70a81664a3408e591b08a254f5c224b1da54635a00626
102 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, identified as a link farm, that point to various gaming-related cheat and free item sites. The primary URL, http://netcdn.tw/app/406889139/coin-master-free-spins-link-today-facebook-game-hack, and numerous others hosted on mtsn-baranti.com, suggest a lure for users seeking in-game advantages. The ML classifier strongly indicates malicious intent, likely for phishing or to redirect users to sites hosting further malware.

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/406889139/coin-master-free-spins-link-today-facebook-game-hack
    • http://mtsn-baranti.com/perpus/repository/free-spins-on-coin-master-2021-ios_GM406889139.pdf
    • http://mtsn-baranti.com/perpus/repository/youtube-how-to-hack-acounts-on-roblox_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/free-gift-cards-roblox-2021_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/roblox-level-hack-cheat-engine_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/roblox-free-level-7-exploit_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/free-accounts-on-roblox-discord_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/hack-for-counter-blox-roblox_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/free-robux-android-no-verification_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/insane-admin-hack-script-roblox-pastebin_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdf
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-no-root_GM406889139.pdf
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-2021_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/join-this-group-for-free-robux_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/roblox-prevent-fly-hacks_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-app_GM406889139.pdf
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-combo_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/free-robux-generator-codes_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/cheat-engine-no-longer-works-on-roblox_GM431946152.pdf
    • http://mtsn-baranti.com/perpus/repository/hack-slash-ghostemane-roblox-id_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003569.bin
2cb14e8956c6bbfeffe50d7ffd7b44efa46920e9acbc4e6a2de07aa248b6806e
pdf-font-stream PDF embedded font (sfnt) at offset 0x3569 22904 bytes
font_01_sfnt_off000068c5.bin
c3ade08de57381628f5686ccf696f3ba3849ebe8fe4747e995ca261a5a4133ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x68C5 18856 bytes