Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e17afd6d1714f3…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 07:00:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 42d23c7fef0b51894c2864fbe438c7b5 SHA-1: 6cf3532e5a212961befe34463e1780ae6defbe5b SHA-256: 92e17afd6d1714f3157ce1bd1d55021299d63452695ae40a33574d6cd70392e8
102 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs that lead to websites offering "free" game currency or hacks, indicating a phishing or scam attempt. The heuristic firings confirm the presence of a link farm and external URIs, strongly suggesting the document's purpose is to redirect users to malicious or deceptive content. No scripts were extracted from this sample.

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/free-roblox-robux-giveaway-game-hack
    • https://www.tdbaska.hr/files/http-lazyassgamercom-robloxhackrobuxgenerator_GM431946152.pdf
    • https://www.tdbaska.hr/files/how-to-get-free-clothes-on-roblox-on-ipad_GM431946152.pdf
    • https://www.tdbaska.hr/files/coin-master-free-daily-spins_GM406889139.pdf
    • http://www.tdbaska.hr/files/coin-master-links-free-spins_GM406889139.pdf
    • https://www.tdbaska.hr/files/coin-master-daily-spin-link-app_GM406889139.pdf
    • http://www.tdbaska.hr/files/free-tiktok-accounts-and-passwords_GM835599320.pdf
    • https://www.tdbaska.hr/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdf
    • http://www.tdbaska.hr/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdf
    • https://www.tdbaska.hr/files/coin-master-hack-co_GM406889139.pdf
    • http://www.tdbaska.hr/files/coin-master-free-food-for-pet_GM406889139.pdf
    • https://www.tdbaska.hr/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
    • https://www.tdbaska.hr/files/lastrick-com-coin-master-hack_GM406889139.pdf
    • http://www.tdbaska.hr/files/hack-coin-master-without-human-verification_GM406889139.pdf
    • https://www.tdbaska.hr/files/coin-master-coins-free_GM406889139.pdf
    • https://www.tdbaska.hr/files/daily-coin-master-free-spin-link_GM406889139.pdf
    • https://www.tdbaska.hr/files/minecraft-free-download-laptop_GM479516143.pdf
    • https://www.tdbaska.hr/files/free-coin-master-s_GM406889139.pdf
    • https://www.tdbaska.hr/files/rbxcash-robux-free_GM431946152.pdf
    • https://www.tdbaska.hr/files/free-likes-and-followers-on-tiktok_GM835599320.pdf
    • https://www.tdbaska.hr/files/master-coin-free-spin-daily_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000305f.bin
283e76071a8362420767e0facd734e84c1cee99321bd63a36f1404af6004929d
pdf-font-stream PDF embedded font (sfnt) at offset 0x305F 21424 bytes
font_01_sfnt_off00005f09.bin
43dcb550ade7762f0ceccba460eac3dd67957472d0974b811385df39ffc53dd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F09 19368 bytes