Malicious PDF — malware analysis report

Static analysis result for SHA-256 22465b621e52c722…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 13:23:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 7c1de572db0b0bacb0e4462b090fb5de SHA-1: b9f63fde621164b3d85ccb6a6f053e346c15b2b9 SHA-256: 22465b621e52c72286ace8e48c73a2503b59ec28979bfbd6665961fae4a9cba8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector infrastructure and websites that promise free in-game currency and hacks for popular games. These links are designed to lure users to potentially malicious sites, which is a common social engineering tactic. The presence of numerous embedded URLs and the specific heuristic firings strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/coin-master-free-spins-and-coins-app-game-hack In PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-hack-scripts-pastebin-grab-knife_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-bc-roblox-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/one-player-game-free-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/odes-for-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-website_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/earn-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003033.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3033 22756 bytes
SHA-256: 2f959a7a2b601fb2946cdf36ca4b0cbb22a467991cbbdf04a80d90da6d197a5b
font_01_sfnt_off00006348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 18348 bytes
SHA-256: 3aa320ccb9cb7c087074e4ef079b33192d8e05703f275142029ef104db56ac85

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