Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7087bca158a90b…

MALICIOUS

PDF

45.1 KB Created: 2021-05-10 20:02:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 40d8e563e7028de7955aa163420cdc67 SHA-1: 418d1d28286502592d4e563072049e95c1ff5a73 SHA-256: cc7087bca158a90b4d05cbe20bd8b34220e1ddd9c402b951d30681c9fa122cec
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to websites offering game hacks and free in-game currency, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the PDF's structure and embedded URIs point towards a social engineering attack. While no scripts were explicitly extracted, the nature of the lures suggests a potential for JavaScript execution or redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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/hack-version-of-coin-master-game-hack PDF link annotation
    • http://pspmrsmbpulau.com/opac/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/mcpe-master-coins-hack_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_off00004b91.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B91 24936 bytes
SHA-256: 453ed59318216c97b67bb5ed223167bb46978856ffd832a011bc5751432173be
font_01_sfnt_off0000851e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x851E 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ECF 17848 bytes
SHA-256: d9bde3e406d035dad20a2676c1f7ae85e4d06f1b9e5d7d6c6a094e48c8d4446c

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