PDF malware analysis — malicious · 5871fb876b457391

MALICIOUS

PDF

44.3 KB Created: 2021-06-07 08:59:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: a20f92d2e0d3ff09b2ff471acda7b0aa SHA-1: 064c765e2c003edc6b7cb0d0c4b92c3ced5c5ae9 SHA-256: 5871fb876b457391358ddaeeb6911e4564c3110b26d2dee2a25bec256a12b3bf

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous links to external websites, many of which are SEO-optimized PDFs related to game hacking. The document body itself contains a primary URL and mentions a password for an archive, suggesting a lure to download or access potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.tw/app/431946152/how-to-get-guns-in-roblox-hack-game-hack
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-that-actually-works-no-gift-card_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/como-hackear-y-tener-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-xbox-one-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-cute-royale-high-outfits-roblox-twitter_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-into-a-full-server-on-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-bubblegum-simulator-steal-hack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/fly-hack-for-strucid-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-download-of-roblox-for-pc_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-links-free-spins_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-real-working-2021_GM431946152.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/free-roblox-womens-face_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-gta-5-money-hack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-com-free_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/roblox-hxh-immortal-dream-level-xp-hack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/famcrazy-roblox-hack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/wahoo-roblox-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-roblox-buiding_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-ipad-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005158.bin` `0f648acb118a2bfccb855fbcf077333fda70eae47b24e4851d2b2a43a3f9c585`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5158	24820 bytes
`font_01_sfnt_off00008988.bin` `e3f300433f72d39e887c976f0b5b535c6507709b41fb5df65c40136320c498c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8988	18588 bytes

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