PDF malware analysis — malicious · f158b242584a8a47

MALICIOUS

PDF

37.0 KB Created: 2021-06-29 16:28:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 7751136fad34d2b138b01945fda24532 SHA-1: d4dbac0eb9479012e3ad466b062a23e13b072315 SHA-256: f158b242584a8a4741191d277a5990574fdab13a6d5dce066eb3d715e886eef7

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.co/app/431946152/free-robux-by-bananaman-2021-world-game-hack PDF link annotation
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-support_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/hack-for-roblox-create-a-security-base_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/robux-roblox-hackcom_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-quests_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/escape-room-roblox-cheats-theater_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-to-get-free-pubg-uc-without-human-verification_GM1330123889.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-how-to-get-robux-free-no-hack_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/download-tool-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/break-free-super-mario-odyssey-roblox-id-codes_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/pubg-uc-xda_GM1330123889.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/noto-clip-hacks-roblox_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-robux-hack-generator-2021_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/hack-roblox-da-hood-pc_GM431946152.pdfIn PDF document text
- https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off00003555.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3555	22984 bytes
SHA-256: `9229eced04ba1fa0860798d45e41381bd0007aacfd05d5d39d82b4f314c62060`
`font_01_sfnt_off000068e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68E6	20004 bytes
SHA-256: `e89229c608489275e6506c335e31f4eac89bceb40e2ca6b41c8ab419ff809093`

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