Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f55d266348290ad…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 15:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 558ce26a80f2a6c37353cb61235ed796 SHA-1: 59fc621e3ad84a2c8e796732ef4e466144e67fcb SHA-256: 2f55d266348290ad47b8374946c653057e68f8b7946913e33d93b4b95a8a0537
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 0.9980

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 http://netcdn.tw/app/431946152/can-i-get-robux-for-free-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-btools-hack-mega_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-roblox-gift-card-codes-2021-june_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coun-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-tiktok-likes_GM835599320.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
font_00_sfnt_off000030be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BE 21996 bytes
SHA-256: d00ede2f41c581eb10966dbd47d85753f9f6241523b8a4b973361defacca5c5e
font_01_sfnt_off0000617c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 18820 bytes
SHA-256: a8ebb2e02c07fcee768b9c7d2548d14d4f98ce7ae4a3dab28d470086f2c44dd3

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