PDF malware analysis — malicious · f55ab3fd6dae0d00

MALICIOUS

PDF

46.2 KB Created: 2021-05-30 12:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 79b035f7c4345237ce414c4e74985fd8 SHA-1: 1747294fc5ea4311aa2cbc0b41245d44609002e6 SHA-256: f55ab3fd6dae0d009b42b3b066c39faa72cf4154f2c58d0cd015dce8bde4e49b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways. The primary URL and many others promise free in-game items or currency, indicating a likely scam or phishing attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9544

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/how-to-get-free-robux-hack-game-hack PDF link annotation
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-co_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-free-online-games_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000055dc.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x55DC	25316 bytes
SHA-256: `89d34a623ac2e07823e16f5b6749f2bf0a08b87abd919c5ffa7c4c582074eee5`
`font_01_sfnt_off0000909f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x909F	18680 bytes
SHA-256: `94830d128a2a842b7d907871b5b30233810e9b8beb569ce3f786f2ddb63eaed4`

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