Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f2109a471aed33…

MALICIOUS

PDF

35.9 KB Created: 2021-06-27 01:11:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0ebc25efa3275794d53727b3f2d780a9 SHA-1: 78d03c88a802a79bbea30eead57e27ae277cb317 SHA-256: 30f2109a471aed33dd3f888cc2095d86f9fceb499d9b4e2141274b09ff35095e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, masquerading as free game hacks and accounts. The primary lure URL is http://netcdn.co/app/431946152/free-accounts-roblox-download-for-chromebook-game-hack, which is associated with known malicious infrastructure. The document body and embedded URLs suggest a social engineering tactic to trick users into downloading potentially harmful files or visiting further malicious sites. No scripts were extracted, but the presence of multiple malicious links and the ML classifier output strongly indicate malicious intent.

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.co/app/431946152/free-accounts-roblox-download-for-chromebook-game-hack In PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/hack-para-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/roblox-jailbreak-script-hack_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/roblox-mass-hacked_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/www-free-robux-partycom_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/how-to-hack-roblox-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/roblox-hack-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/c-roblox-exploit-free_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/hacks-roblox-royal-jelly_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/pastebin-hack-robux-gratis_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/roblox-hack-tool-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/2021-roblox-hack-website_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/how-to-get-400-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-avater-maker-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-fall-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn1kukarelearning.com/__statics/gudangsoal/files/free-robux-no-survey-or-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3289 22520 bytes
SHA-256: c8f2a4794f50e4163116be1ec3cc7110fb47059d8a1128581250495a76c461ca
font_01_sfnt_off000064a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A8 19996 bytes
SHA-256: 22a290c8d2496f80e7db7308bc0d1df2ae0d6b4819095cbf136ef749b68196d8

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