PDF malware analysis — malicious · 344a1f2a4505a492

MALICIOUS

PDF

36.0 KB Created: 2021-07-05 22:30:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6d2a0a95e00272f65a4b9d15f794de4c SHA-1: 15aa7bc33c54d3adcdfd1d1a8cfc37e5b98b3d79 SHA-256: 344a1f2a4505a492d10cf65c259d690fdd68f9babc52d85ec0e37992fc7490f7

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/coin-master-cheat-apk-free-download-game-hack PDF link annotation
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-prison-life-hack-gui-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/pubg-uc-upi_GM1330123889.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/game-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-promo-cides_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-speed-hack-on-roblox-mad-paintball_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-hack-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-working-hack_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/gues-that-song-roblox-cheat_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-key_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- https://www.ktcart.co.in/uploaded_files/userfiles/files/https-www-roblox-com-games-2021202180-free-admin_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_off00003461.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3461	22948 bytes
SHA-256: `de3a99c50befda59109c020d78544a7a25021318703c14b6b4e5d65584fa77aa`
`font_01_sfnt_off00006802.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6802	19092 bytes
SHA-256: `49edf52c5cf368a8d41ab1b9b283a900cdd060b2dfdd3a58fc5bfb308b9a1ed9`

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