Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebf82c6419c507e…

MALICIOUS

PDF

49.6 KB Created: 2021-06-09 10:57:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1e03a70249e3a6adcac5a60811feae30 SHA-1: dbad9c785e05e7dce427047e456274c6f4f00afe SHA-256: 0ebf82c6419c507edf5e069b002c23857e537e831b17e4ba03669e2aaf0d6805
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 0.9796

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.tw/app/431946152/free-robux-gift-card-codes-unused-2021-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hack-teleport-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-cheat_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005277.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5277 26320 bytes
SHA-256: 507872a12d5e748d8739d175004dc270022b8bd6a064dfd7d36ed155c3eaeb4f
font_01_sfnt_off00008f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F21 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C33 19228 bytes
SHA-256: 5490702d4bf587e5eec586eb58ce96ca178bd5c09b80bb1e90e40a662ba55b3b

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