PDF malware analysis — malicious · cacfe9e25b73cb31

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 07:05:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 87e9a134dcc5e136f658d192515ed6ae SHA-1: a59b184a65d9f07a1a523e47b26fea1bc1ca5b6d SHA-256: cacfe9e25b73cb31377bc966e4b5784f19ee80ae37a9208679204e28255f73ed

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external websites, many of which are structured as SEO-optimized links for game-related hacks and cheats. The document body, though heavily obfuscated, contains URLs that appear to be part of a lure for free game items. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests a malicious intent to drive traffic to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/835599320/tiktok-free-tiktok-game-hack PDF link annotation
- https://www.mescosa.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/tiktok-free-tiktok_GM835599320.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
- https://www.mescosa.com/uploaded_files/userfiles/files/coin-master-free-spins-cheat_GM406889139.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_004_off00004e8c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E8C	25728 bytes
SHA-256: `41f5fdc0afda64360b92b20becdf0b411f7f77f9beab8b45b4ff0a2a05f3d7ce`
`font_01_sfnt_off00008947.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8947	17456 bytes
SHA-256: `59b82efa7141ba2b07d91e3b641cbf682cee4575ed292f5ecf89ba3b7e2e2e13`

Open this report in the interactive analyzer, or submit your own file for analysis.