PDF malware analysis — malicious · 10cec82c048c23ea

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 08:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 93afe5b4c503e2ecb0ed0862399b4401 SHA-1: 4f4cddb900d91790350ce39f3867f51c136fa600 SHA-256: 10cec82c048c23ea51beb31a3d3e8f2b57fbca98354c998b52ceb05d1936ee3b

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 files promising free in-game currency or hacks. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the deceptive nature of the document. The primary goal appears to be directing users to potentially malicious sites through a link farm.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/free-coin-master-cards-link-game-hack PDF link annotation
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/get-free-robux-no-hacks-and-no-buiders-club_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/broken-bones-roblox-hack-v3rmillion_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/roblox-zamasu-dbn-prealpha-hack_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-hack-in-any-game-on-roblox_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-hack-review_GM406889139.pdfIn PDF document text
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-links-for-free-spins_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
`font_00_sfnt_off000031a6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31A6	22796 bytes
SHA-256: `f3a7267ee7cbafd8cab57bfcec3b7c3e5e620ce4bcf4ab3cc5893d24da3c7c5d`
`font_01_sfnt_off000064bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64BF	18340 bytes
SHA-256: `b2017717319ed1cc4a90f63cde4a7ca53e868056cc2e1441a2f5bc7eaddf4cbd`

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