Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b7d1763f33a6d9b…

MALICIOUS

PDF

23.4 KB Created: 2021-07-08 23:16:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 08d0fc42c35852ed59abccc39da56618 SHA-1: a916278d2d560ccd4ddccc8fc561bd3f829fa1b6 SHA-256: 9b7d1763f33a6d9b00d72cb49b623db3f534a07c591c7fe0d270a4bcfc2a0dad
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body and embedded artifacts also contain URLs related to game hacks and free in-game currency, reinforcing the lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 3

  • 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.
  • 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-village-cost-game-hack PDF link annotation
    • https://7gking.tw/upload/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-promo-codes-roblox-february-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-someones-account-through-team-create-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-no-skams_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/is-tiktok-free-app_GM835599320.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-robuxfor-free_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-roblox-and-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-fake-card_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-toy-codes-unused_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/most-popular-roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-number_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-pet-simulator-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F0C 23060 bytes
SHA-256: 4fb7bc22015bf103b500db199e7469326735a951c304c35c06f47e56fdcdcb60