Malicious PDF — malware analysis report

Static analysis result for SHA-256 359d6464b28edd09…

MALICIOUS

PDF

47.6 KB Created: 2021-05-30 19:12:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 144980d4697e6bfc57207ee5de9840a3 SHA-1: a513eef6edfd6bba783a1f67b8f75cb9c1b3b123 SHA-256: 359d6464b28edd09c542055aadb6b3525b7db4708ad391c734988c1681e049a5
110 Risk Score

Malware Insights

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

The PDF document contains numerous external links, forming a link farm, and includes language suggestive of a fake invoice or download lure. The primary URL, https://netcdn.xyz/app/479516143/free-minecraft-printables-game-hack, likely leads to a malicious payload. The document's structure and content indicate an attempt to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8017

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 https://netcdn.xyz/app/479516143/free-minecraft-printables-game-hack
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/daily-free-spins-for-coin-master_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-accounts-2021_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-someone-on-roblox_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-scam_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-today_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/rbxfree-com-free-robux_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/tiktok-free-fans_GM835599320.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-spins-on-coin-master-2021_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-without-doing-anything_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-coins-and-spins-app_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/get-free-followers-on-tiktok_GM835599320.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-fly-hack_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/download-minecraft-free-hiapphere_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-name-tag-hacks_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spin-today_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/play-minecraft-online-free_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/robux-gift-card-free_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-without-downloading-apps_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spins-promo-code_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-coloring-pages_GM479516143.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-easy_GM431946152.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/master-coin-free-spin_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-blogspot_GM406889139.pdf
    • https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spin-ml_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00005696.bin
1de3ed35a09e4f9333692cf415194eb77d8a1531446212c1071ac8713994f81f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5696 24340 bytes
font_01_sfnt_off00008e34.bin
c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E34 2892 bytes
font_02_sfnt_off0000981d.bin
e5df45a09fd76c24ea43a7fa28fc5fe559da15feee3d3577044ff876206ae01e
pdf-font-stream PDF embedded font (sfnt) at offset 0x981D 17956 bytes