Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44806a13093611c…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 20:07:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f6c8f6e9db38510839405292a8bb8031 SHA-1: 931444e0bef13941353b1bd3d16f26bfb19b0a71 SHA-256: d44806a13093611c37a38837a71ab57d4f0fe0eaae81f4d8374b7a7690f77578
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 0.9796

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/daily-free-spin-coin-master-link-game-hack PDF link annotation
    • http://www.rewaqousha.net/userfiles/files/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/blogspot-free-spins-coin-master_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/hack-game-coin-master_GM406889139.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://www.rewaqousha.net/userfiles/files/funbloxxyz-free-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_004_off000050c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50C5 27452 bytes
SHA-256: 9a0b2c730f28bfb03769cc7915570efc90ecc9f315ae1ba7485773ab56318b98
font_01_sfnt_off00008f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3B 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off000098db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98DB 18476 bytes
SHA-256: 13087f23ced5a654764a402ace47e06b7ceeb886891228a443e0cb07dd9c4176

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