PDF malware analysis — malicious · 361fc1204c467dde

MALICIOUS

PDF

47.6 KB Created: 2021-05-14 17:53:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b51cdff9ebbbb842bf1c17a7861abb84 SHA-1: 04de950eb328c83a017e142fff5ce90ba74cc74c SHA-256: 361fc1204c467dde96d179180a2998724e381f9ee9211b671bf5fd30c2b12ad5

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 0.9013

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 https://netcdn.xyz/app/406889139/coin-master-hack-ios-download-2021-game-hack PDF link annotation
- http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-robux-working_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/roblox-re_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/robux-free-robux_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-cheats_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.glabintl.com/uploaded_files/userfiles/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d0b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D0B	27588 bytes
SHA-256: `8fcb0ff9b251ce090e8cccc783317579228ab74e4419b70980162803406cd651`
`font_01_sfnt_off00008af6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AF6	3400 bytes
SHA-256: `4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07`
`font_02_sfnt_off0000961f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x961F	18696 bytes
SHA-256: `11ecf461d2f98c74c154dcc560692411ec3e38438efbd345bccaad7f825d81b7`

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