PDF malware analysis — malicious · 5759d70e482a48ee

MALICIOUS

PDF

54.0 KB Created: 2021-06-01 01:16:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f00384a3bb2d94e3183e940298577825 SHA-1: 5caba523c5ce5e5f3455093ec0cf93112a7578c2 SHA-256: 5759d70e482a48ee87738741a12bfe6a30250d3d0fe612428084abc13bcb6a21

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external websites, many of which appear to be part of a link farm designed to distribute malicious content or phish users. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and the link farm heuristic strongly suggest a malicious intent to redirect the user to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9491

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 https://netcdn.xyz/app/431946152/roblox-bloxburg-cheats-game-hack
- https://hundt-druck.de/wp-content/uploads/fsqm-files/safe-mac-roblox-quto-clicker-free_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/get-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-spins-for-coin-master-app_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-roblox-6-pack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-tiktok_GM835599320.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-games-on-roblox-rpg-rainbow-swords-rpg_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-how-to-changre-your-name-to-something-free_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-promo-codes-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/get-free-spins-coin-master_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/mine-minecraft-games-for-free_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/microsoft-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/hacks-to-get-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-free-play-no-download_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/best-free-minecraft-server-hosting_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/is-minecraft-java-edition-free_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-windows-10-free_GM479516143.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/wahoo-roblox-free-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051ec.bin` `f5a798dcd444bf4feb768a43d514b09c7b2626a30574cd9e801c1d46a3e891c4`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51EC	31036 bytes
`font_01_sfnt_off0000986d.bin` `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x986D	2840 bytes
`font_02_sfnt_off0000a21a.bin` `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA21A	5696 bytes
`font_03_sfnt_off0000af2c.bin` `15465dbd9e014e491fd1050faf586290f0e635f3bb51d74f7a5db7822d824e71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAF2C	18708 bytes

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