PDF malware analysis — malicious · f8517c28503f4245

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 00:52:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: c7d7a750d325c27e448f98400253a2c3 SHA-1: 30500d3a46d22a3702db3574844369f3c97fc7f8 SHA-256: f8517c28503f4245b00d75694b02e5f2d69b7d53643c478c912c2f2b56181ded

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/how-to-get-money-on-roblox-with-cheat-engine-6.3-game-hack. The document body and embedded URLs suggest a lure related to game cheats and in-game currency, which is a common theme for phishing and malware distribution. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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.co/app/431946152/how-to-get-money-on-roblox-with-cheat-engine-6.3-game-hack In PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/hack-avatar_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/how-often-pubg-uc-roots_GM1330123889.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/cheat-engine-65-roblox_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/coin-master-coin-hack_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/free-roblox-followers_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/cheat-roblox-jailbreak-money-give_GM431946152.pdfIn PDF document text
- https://www.titastar.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts_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
`font_00_sfnt_off00003077.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3077	21712 bytes
SHA-256: `258034d4acb9d793d8feaec8d74059dd6960dbdee35312d65d8856a0baec770a`
`font_01_sfnt_off00005ff7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FF7	19836 bytes
SHA-256: `0295c8dc0c9b3d74c8c3468a4c9152a717f6ec734c9db68db5f0b7c97dadaec3`

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