PDF malware analysis — malicious · 992b86fcd4813573

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 17:27:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 701ec2d4dee1051e97eedee6146769d7 SHA-1: d2919b18d6ab9ff135ec3eb5d6c9cce2025d91fe SHA-256: 992b86fcd4813573eb292c9745c97db014aad2963aac6c1d1de7392e24691ade

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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/how-to-get-spins-on-coin-master-hack-game-hack PDF link annotation
- https://www.mierepair.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/a-good-free-outfit-on-roblox_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/mcpe-com_GM479516143.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/pokemon-go-free-metagross_GM1094591345.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/code-pour-des-roblox-free_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/roblox-murder-mystery-2-hack-script-gui_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/how-to-speed-hack-roblox-youtube_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
- https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free_GM406889139.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_off00003299.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3299	22204 bytes
SHA-256: `ea9b4bb6cdc1e0a81ed9b06b855dcceae5ec674f3a468147d2ecd4a540836e88`
`font_01_sfnt_off000063d8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63D8	18344 bytes
SHA-256: `4391b8fdd94c3e91ab7c8b66dd483ba7ee2647ef2a9573d78ffb2d7635701131`

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