Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b7a923ae8c81bd…

MALICIOUS

PDF

39.7 KB Created: 2021-06-03 04:56:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3474ad222500628c49b36f0cf4b483d5 SHA-1: be585e1ae3c07faa869447ba86dcefb3aa0bda6a SHA-256: 06b7a923ae8c81bdab730a8c6cec91646d97f31e058713dbabafcb47267f3146
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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 https://netcdn.online/app/431946152/how-to-get-roblox-membership-for-free-game-hack PDF link annotation
    • https://bioscience.kyst.com.tw/image/data/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://bioscience.kyst.com.tw/image/data/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000534d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x534D 26548 bytes
SHA-256: e0bebeb87300f86284408ed62e11a01082d08bf0ae6f26e1067c9e0b4c191046
font_01_sfnt_off0000916e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x916E 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a

Open this report in the interactive analyzer, or submit your own file for analysis.