Malicious PDF — malware analysis report

Static analysis result for SHA-256 3842ede86dd39703…

MALICIOUS

PDF

44.4 KB Created: 2021-05-12 13:20:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7c53d2cfd2793a0d28452d5eb16e153e SHA-1: 87405d3fb78b64e24da06f36a68312a0ed5867c8 SHA-256: 3842ede86dd397031db5b5568f1eef8221db13cf268d7b38e3a49a3660416beb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free spins, directing users to a URL that likely serves malicious content. The presence of multiple embedded URLs and a high ML classifier score indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, potentially for further exploitation or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-free-spins-link-blogspot-today-game-hack PDF link annotation
    • http://parsbaft.com/images/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-to-get-robux_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_003_off00004825.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4825 24040 bytes
SHA-256: b1ffdcf9a25e44302b03bfecbee5ce941e5a9dd21737f55c42b341c77c219439
font_01_sfnt_off00007edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDB 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off0000888c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888C 18988 bytes
SHA-256: 2b06b552feb9fdd10e7730fb6ea803097d4340a2e9acfe2d77736b6ed3bd8bee

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