Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c243ef61fb40246…

MALICIOUS

PDF

54.1 KB Created: 2021-06-07 15:10:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0ee36428ca65f625fc0191e5e089b365 SHA-1: 5f02b2f60e650bad47c232ef59ba4c161e4acd96 SHA-256: 6c243ef61fb40246fe6a50d8215971b2be630cdea4efd39a8cbaa933544de5c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary lure is a link to 'roblox-free-robux-games-that-work-2021-game-hack', which is hosted on infrastructure associated with malicious activity. The document body and embedded artifacts do not contain executable scripts, but the presence of malicious links strongly suggests a phishing or social engineering attack aimed at redirecting users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9491

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 https://netcdn.tw/app/431946152/roblox-free-robux-games-that-work-2021-game-hack In PDF document text
    • http://meisterhaus-guterl.de/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-pokemon-go-accounts-level-35_GM1094591345.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://meisterhaus-guterl.de/images/coin-master-2021_GM406889139.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E6 30644 bytes
SHA-256: 34a1b7ac78c4bb2aa742a53f2693dbc95d32ca1c9bf1459510f0a630f45f14f1
font_01_sfnt_off000097a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97A1 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off0000a192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA192 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_03_sfnt_off0000aca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACA6 19616 bytes
SHA-256: a2d83d4cc94e57eba39a0b160595d8c132af91035f1d121d2f278bee8d3171f5

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