Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6eea8b080b6ece…

MALICIOUS

PDF

52.1 KB Created: 2021-06-03 20:07:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 595b03938e84af8c67b8112319608cf9 SHA-1: 469eee6d242fbb1e28afd4164b06bf002ddeddff SHA-256: db6eea8b080b6ece5f6832d12c28a2fc0e01ee3e1dc0672cd1d4812be7ec5eb3
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 0.9657

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/431946152/roblox-hack-2021-game-hack PDF link annotation
    • http://www.rewaqousha.net/userfiles/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/pokemon-go-free-games_GM1094591345.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/robux-game-com_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/20210-robux_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-client_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53C7 26200 bytes
SHA-256: 47fdc808178332ca475b00d2b342cbbb552301560e4ecf6878a8fb9a9027edaa
font_01_sfnt_off000090cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CC 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A76 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA788 18584 bytes
SHA-256: 2941163c9806e22b58ea5552aa71059231a9f2c3bbffbca0ecd460ca17501cff

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