Malicious PDF — malware analysis report

Static analysis result for SHA-256 213ad99f27571a02…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 16:55:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 99bc3476fdfad679557bfa7cef114f85 SHA-1: 2866111be3990576b202025ce8183dd028c2ea0e SHA-256: 213ad99f27571a02d57e3d9a3694b80677f20b6a5840b24fb3f1cd1413fd195c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free accounts, such as 'free-account-roblox-2021-game-hack'. This lure is designed to trick users into visiting potentially malicious sites or downloading further malware. The ML classifier also strongly indicated maliciousness.

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/free-account-roblox-2021-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/pubg-uc-in-pakistan_GM1330123889.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-obby-limited-time-only_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-to-get-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E08 22364 bytes
SHA-256: a820e5a388cc89831ab8cd5dfd10f4d6e1fa994caf1bbf0af973a4ac81c331b6
font_01_sfnt_off00005ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFA 19296 bytes
SHA-256: f74488ebd253440644121babcafcee202dec37b99e8f5ebb4caa9f1b62b5dc1b

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