Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a7dd5fde0ca78ea…

MALICIOUS

PDF

44.6 KB Created: 2021-05-11 22:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7daf03b112f6826ddcef9b96a5445c2a SHA-1: 6bfac2c615d3a533e0d48d02e74e792c47d7bd48 SHA-256: 0a7dd5fde0ca78ea77b3781aad759bab44870b7f6447650198f627f87d45a447
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 0.9632

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/406889139/coin-master-hacks-for-spins-game-hack PDF link annotation
    • http://principessalialaofegypt.com/images/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/coin-master-spin-hack-no-human-verification_GM406889139.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_003_off00004ad6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD6 24584 bytes
SHA-256: 0e318d9cfcea43422d2830f1df4dc877d9571136c67b592bc0407bfc484a0a00
font_01_sfnt_off000082bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BF 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C71 18056 bytes
SHA-256: 12d79a7ddbb75c7a0854102822057d5441bee2ca4a20c79f8211a3d0b9a1f375

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