PDF malware analysis — malicious · e4d257f25790122a

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 23:42:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 6c2724804632f39d5cf52d7aff0cfd18 SHA-1: af7fed369f76c467de15d803e2c9a95d047ac1b6 SHA-256: e4d257f25790122a351337aa14a15dc48d9ca81895a65e56d8d5ca2e3b7640a8

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded links that redirect to external URLs, identified as malicious redirectors. The document body, though partially corrupted, suggests a lure related to game cheats or hacks, aiming to trick users into downloading malicious content. The presence of multiple malicious links and the ML classifier's high confidence score support this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/479516143/minecraft-1.12-2-hacked-client-game-hack In PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/free-robux-please_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/coin-master-free-shield_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
- https://www.kkaccessoriesuk.com/uploaded_files/userfiles/files/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
- https://playhack.in/minecraftIn 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_off00004b81.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B81	24492 bytes
SHA-256: `d32c4eee8a3f471f071811835950ff673e7654ac41b85b636bfd45e87f1ea73d`
`font_01_sfnt_off00008301.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8301	18280 bytes
SHA-256: `82135226d76a6244ad3fef1c984a62d44c7236218efe4707925baddb6c5b4f8a`

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