PDF malware analysis — malicious · 0ab047008f3db392

MALICIOUS

PDF

35.8 KB Created: 2021-07-05 02:40:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: ebd3ac106d9af35f995f4e6852e87b36 SHA-1: c920cfa2d663d50680cdb411b7ee523d69c8161d SHA-256: 0ab047008f3db392fca5b32f9e418acf1817002b4bc48fa087b035e3bed103b4

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a document body that explicitly advertises 'Esp Hack Roblox Pastevin' and related game cheats. The presence of multiple links to external sites, some hosted on 'netcdn.tw' and 'technibuild-group.com', strongly suggests a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence.

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/431946152/esp-hack-roblox-pastevin-game-hack PDF link annotation
- http://www.technibuild-group.com/uploaded_files/userfiles/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-draw-roblox_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/i-think-ive-been-hacked-roblox_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/wwwrobux-cheat-us-umlited_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/download-roblox-clothes-free-online_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-change-username-hack_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-hack-noclip-download-pc-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/real-robux_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/apocalypse-rising-roblox-hack-25-fvrier-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/all-new-free-roblox-accounts-biz_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_off000033fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33FA	22688 bytes
SHA-256: `d98130a2cc5326b9a7d59c4530381ad669f38a541c76806c6c5c5a63548c513e`
`font_01_sfnt_off00006689.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6689	19140 bytes
SHA-256: `b7c6400a87af1533e21c8870451816f6c69d334ad4d8f9e388a23f9e637405d7`

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