Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dbe119dc2d2e5de…

MALICIOUS

PDF

46.8 KB Created: 2021-06-03 07:27:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c2d1690fc71e1e36dacb7596db623bbe SHA-1: 49db64e6e885f8c886bb6510adde6b2c5e1b96c5 SHA-256: 6dbe119dc2d2e5deb6e457f4470ef67ac1494b8521e66821cc3b3b588fb12b9c
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 0.9769

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/1094591345/pokemon-go-free-ditto-game-hack PDF link annotation
    • http://jjpremiers.com/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-roebucks_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.

FilenameKindSourceSize
stream_004_off00005004.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5004 24324 bytes
SHA-256: a8de9283f1eefa1bf80c25e98be13ffdfed5e1d69af206a338c4c683169f8194
font_01_sfnt_off000087b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B5 3636 bytes
SHA-256: 99dd96e89babb04aea0f0ebf99e33ebde901eaa524a16077e4ca0928c8dd6ae0
font_02_sfnt_off00009481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9481 18232 bytes
SHA-256: dc670d82fec201ea5dc8522d68987d0b0f6bb3d4f02ea0a390aba77ddd4d922a

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