Malicious PDF — malware analysis report

Static analysis result for SHA-256 687726bc078f5b6e…

MALICIOUS

PDF

43.2 KB Created: 2021-05-15 13:04:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b9f767cd56069d8c0e6968b05f96a47b SHA-1: 9cbde05626cfe0bbaca322bad250e043a59831ae SHA-256: 687726bc078f5b6e026b9b00e23d54ad553c0f308817a9c56b29d944d2d721a0
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 0.9969

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.xyz/app/431946152/roblox-hacked-version-download-game-hack PDF link annotation
    • https://www.mpos-organs.com/uploads/files/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mpos-organs.com/uploads/files/files/coin-master-mod-version-free-download-34-4_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_003_off00004bd5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD5 25204 bytes
SHA-256: 0dc61ff85ec9907aeb202575e3385403d58614cd5172b5a54ed5e175a704a9a4
font_01_sfnt_off00008445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8445 18940 bytes
SHA-256: 045b97c0477fa0a77fe25df190f3dc8d91b636a592878cab4dc6788bf6280dbe

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