PDF malware analysis — malicious · 60fdddf38de27864

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 16:06:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 95987984015639563de60d6a18380b51 SHA-1: e2cf2e982794c6316988981a30fbdea52e1f7852 SHA-256: 60fdddf38de278644849bf7b4687d4b89210fdcf1001cf49fed0c5d75f12cea8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on toyogas.com.tw and appear to be SEO-optimized PDF files related to game cheats and free currency. One direct URL, http://netcdn.tw/app/406889139/fbchampion-game-hack, suggests a direct download or execution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure reinforces the malicious intent. No scripts were extracted, but the overall structure points to a phishing or malware distribution attempt.

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/fbchampion-game-hack PDF link annotation
- https://www.toyogas.com.tw/upload/files/robux-free-co_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-dragon-ball-z-final-stand-cheat_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-counter-blox-hacks-2021-june-injector_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-com_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-lua-scripts-for-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/getrobux-info_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/download-cerberus-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/oneapprewards-com-roblox-hack-robux-picker-sessid-4s45w24_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-download-roblox-dino-simulator-hack_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_002_off00002f14.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2F14	23176 bytes
SHA-256: `c09392ecc8cbcc9a0e10752ba2d75d0e1f52954c5127c003606081266210e01a`
`font_01_sfnt_off00006362.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6362	18656 bytes
SHA-256: `fb679c9250522cab0344be15c9898f12ed930a7de6dfe2591d59bad5f2ca43f7`

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