PDF malware analysis — malicious · df5698ba72a04e25

MALICIOUS

PDF

34.6 KB Created: 2021-06-30 12:51:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 8b19b17b80713caafc87c0cba1070228 SHA-1: 49433e9e71d78170c996694dec9536862224cd4a SHA-256: df5698ba72a04e25d819e3e35838178659e14d5f897f7729f22f331dca6e4f85

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files promising hacks or free currency for popular games. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document's primary purpose appears to be a phishing or scam attempt disguised as a guide for obtaining in-game advantages.

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.co/app/431946152/how-to-get-free-roblox-money-2021-game-hack PDF link annotation
- https://htdvn.com/public/upload/files/earn-robux-for-free-no-offers-or-human-verification_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-get-free-robux-on-roblox-without-builders-club_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-pet-simulator-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-gift-card-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/paid-roblox-cheats_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-hack-online-no-download-no-survey_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/como-conseguir-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/claim-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/trigon-hack-roblox_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-codes-generator-no-verification_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_off00003059.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3059	21852 bytes
SHA-256: `c4b3dd9bf340aec757e48093f6cddb9eacf1e084415db24d88b5746bca2c3ca7`
`font_01_sfnt_off00006027.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6027	19696 bytes
SHA-256: `94d114b58f926c29fe2eff085de39aa70bc52caaf7834179a2bbdb25e1cb21a3`

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