Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d3abe4d3f6b2a6b…

MALICIOUS

PDF

43.6 KB Created: 2021-06-03 20:10:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 10ba748447574ffd2007f782291ed011 SHA-1: c9538af7becc663445fc757e658236972e3677fb SHA-256: 2d3abe4d3f6b2a6b0c41acfdb51bef3e99626a122c9e4e511aba844d80de4022
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 0.9865

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.online/app/406889139/download-hacked-games-coin-master-game-hack PDF link annotation
    • http://www.rewaqousha.net/userfiles/files/coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/pubg-uc-qiymetleri_GM1330123889.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/more-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004da7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA7 24824 bytes
SHA-256: bbd0a608890a031ab415eaf264ebf59ea250e7be3ed4e06a97c24659f2bb57da
font_01_sfnt_off000086c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C2 18556 bytes
SHA-256: 872856dc36b7d0cde2667ea9daae6868ef6ed6eada75fea978a440faa6a0cafa

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