PDF malware analysis — malicious · ecda27972cb44da2

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 05:34:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: d58847f6d33b8193c2419559288ab939 SHA-1: 12f1c01efbb8b34b6d684b0fabe2743a1e410811 SHA-256: ecda27972cb44da2904bc829406097054354a97aedc9a143e7b2f3a605bb8046

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 0.9865

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.online/app/835599320/free-tiktok-followers-no-human-verification-or-survey-game-hack PDF link annotation
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-club-hack_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/free-roblox-injector_GM431946152.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
- http://www.cityonlinestores.com/uploaded_files/userfiles/files/daily-free-spins-and-coins-coin-master_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
`stream_004_off000050a0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50A0	26076 bytes
SHA-256: `478caba93b177456ac6bf5b6ef387291b63bd4c4a3d70d6d2aaad8991dac394e`
`font_01_sfnt_off00008c5f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C5F	18748 bytes
SHA-256: `6c56a9102827ae6ceba4f8b38934fd9fcdc3c6624088a0c8a681a3e50045d012`

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