Malicious PDF — malware analysis report

Static analysis result for SHA-256 46afaf66652c7fef…

MALICIOUS

PDF

41.0 KB Created: 2021-05-14 16:37:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5dd4c04633c89cde008eeed79c5c8b30 SHA-1: cc9f1a8c697233115f2d5e5bfa6255495e06f95d SHA-256: 46afaf66652c7fef8d43055052019d0ab5d1976c53840b6120f63293dac33c18
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic firing for a "game hack" redirect lure, pointing to a suspicious URL. The document body, though heavily obfuscated, contains references to the same URL. The presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into downloading potentially malicious content or visiting a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-the-coin-master-game-hack PDF link annotation
    • http://tckontrola.hr/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://tckontrola.hr/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://tckontrola.hr/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/more-robux_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://tckontrola.hr/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://tckontrola.hr/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://tckontrola.hr/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • https://tckontrola.hr/files/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://tckontrola.hr/files/minecraft-modded-client_GM479516143.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_off00004838.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4838 24136 bytes
SHA-256: 6eebdcf0d3478039ff5e4922ac17906e1b42546b39b9e78a931c86871d287daa
font_01_sfnt_off00007f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3E 17880 bytes
SHA-256: 8eac0e5399a7748d40951fd2fafb0ad0152a26564755aa210bda9cd00e94f31b

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