Malicious PDF — malware analysis report

Static analysis result for SHA-256 756206dbed924625…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 12:58:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bdf8f62ac9b2cd1f3e59906ff588386d SHA-1: b91836c01dd4f6f26fa46055af7831b083139e1e SHA-256: 756206dbed924625ef091b0dd518c1f9cd64463fb6deef0f9bc237517416c7c9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that direct users to websites offering game hacks and cheats. The presence of a 'download button' heuristic suggests a deceptive call to action. The ML classifier strongly indicates malicious intent, likely to distribute malware or lead users to phishing sites.

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/835599320/what-tiktok-free-views-without-verification-game-hack
    • http://perpustakaan.sman2bondowoso.sch.id/repository/will-minecraft-ever-be-free_GM479516143.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-gold-cards-for-coin-master_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/roblox-gun-script-hack_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-to-do-sex-hack-roblox_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/how-to-get-free-robux-website_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-free-link_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/viper-venom-fabulous-hack-roblox_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/minecraft-pe-hacked-client-download_GM479516143.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/robux-free-gift-card_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-spins-on-coin-master-generator_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/roblox-hackear-ordenadores_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/roblox-april-fools-hack-roblox-blog-post_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-link_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-raid-hack_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/free-spins-coin-master-2021-today_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/hack-roblox-simulador-de-levantamiento-de-pesas-3_GM431946152.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/coin-master-free-spins-link-today-haktuts_GM406889139.pdf
    • http://perpustakaan.sman2bondowoso.sch.id/repository/afraid-of-old-roblox-account-being-hacked_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003323.bin
f09893f3f55b7b4537f806d418dbeccdbecdc386b6038da167c9ef8e48960714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3323 21548 bytes
font_01_sfnt_off00006293.bin
f178b0c05354dad86128c4ae5d3912eaa08bd6136f80427919e99602ad55f526		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6293 18776 bytes

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