PDF malware analysis — malicious · 78c97a22b9e06351

MALICIOUS

PDF

45.6 KB Created: 2021-06-10 21:29:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 5dacd6b86bee1e158084ea95e38a0ab9 SHA-1: 0cb0cfdd09893b063842a357359cd00ebf66647c SHA-256: 78c97a22b9e0635194bd3d56359497659075119ec54bc3d4f017317f543fc66e

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link that redirects to known malicious infrastructure, specifically advertising game cheats. The ML classifier also flagged this PDF with high confidence. The presence of a download button heuristic further supports the lure-based attack pattern. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-admin-commands-hack-with-cheat-engine-6.2-game-hack In PDF document text
- https://fridaytravelnepal.com/userfiles/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-cheat-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/roblox-free-accessories_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
- https://fridaytravelnepal.com/userfiles/files/free-robux-not-fake_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_004_off0000501e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x501E	26132 bytes
SHA-256: `93432d0d21dfd48b08138a149a5c13b32627d29f206f8a69803d560cbd970fcb`
`font_01_sfnt_off00008af3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AF3	19852 bytes
SHA-256: `9fe20355d299445a7ffae16eeb8340e81f0acbc48f050bd496e0a75476e6fc34`

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