PDF malware analysis — malicious · 90d0b52a8437812d

MALICIOUS

PDF

33.8 KB Created: 2021-07-09 07:07:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 78e498361568f52713688ec82fde63c3 SHA-1: 2c4421bd011cf412e82c35659f931929b6eb7720 SHA-256: 90d0b52a8437812d39954cde0187ce6ae9fd004bab0247f54b88aa42ff1270ec

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document contains lures for free in-game items and currency, directing users to download applications from external URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for further exploitation or download of malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/need-free-spins-for-coin-master-game-hack
- https://alimi.com.tw/upload/files/coin-master-cards-free_GM406889139.pdf
- https://alimi.com.tw/upload/files/roblox-download-free-and-fast_GM431946152.pdf
- https://alimi.com.tw/upload/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
- https://alimi.com.tw/upload/files/roblox-hack-account-unlimited-robux_GM431946152.pdf
- https://alimi.com.tw/upload/files/how-to-get-free-items-on-roblox_GM431946152.pdf
- https://alimi.com.tw/upload/files/free-robux-generator-addon_GM431946152.pdf
- https://alimi.com.tw/upload/files/roblox-hacks-vermillion_GM431946152.pdf
- https://alimi.com.tw/upload/files/hack-robux-not-patched-2021_GM431946152.pdf
- https://alimi.com.tw/upload/files/hack-roblox-apk-mobil_GM431946152.pdf
- https://alimi.com.tw/upload/files/minecraft-mod-menu-apk_GM479516143.pdf
- https://alimi.com.tw/upload/files/coin-master-60-spins_GM406889139.pdf
- https://alimi.com.tw/upload/files/how-to-use-a-hack-script-in-roblox_GM431946152.pdf
- https://alimi.com.tw/upload/files/free-robuxs-no-offer_GM431946152.pdf
- https://alimi.com.tw/upload/files/comment-hacker-les-map-roblox_GM431946152.pdf
- https://alimi.com.tw/upload/files/how-to-download-minecraft-for-free_GM479516143.pdf
- https://alimi.com.tw/upload/files/roblox-free-robux_GM431946152.pdf
- https://alimi.com.tw/upload/files/free-op-minecraft-servers_GM479516143.pdf
- https://alimi.com.tw/upload/files/hacks-for-gun-games-roblox_GM431946152.pdf
- https://alimi.com.tw/upload/files/hack-roblox-accounts-2021_GM431946152.pdf
- https://alimi.com.tw/upload/files/mario-64-roblox-rom-hack-code_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00002ead.bin` `2a46ee0e32a6bfe99f52d447bdbe28b07822862d517722d33dd7a11acc9ef522`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2EAD	22484 bytes
`font_01_sfnt_off0000610d.bin` `3957c128dc793e62d1304d4284793c4a4087ddceea17158896e7adcb416da0fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x610D	18348 bytes

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