Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a24e70342c6522…

MALICIOUS

PDF

33.8 KB Created: 2021-07-20 04:26:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 157d552e2fd9e3aee34d2afbf8af6892 SHA-1: 6dafd6455d8fb36bb63ac740535132166953d90f SHA-256: c0a24e70342c652220d9e9d8f062133ad09e099e0ba16a223fe1272c030446cb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious domains, disguised as 'free Robux' or 'game hack' generators. The document body and heuristics indicate a lure designed to trick users into clicking these links, which likely leads to further malicious content or downloads. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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/431946152/you-promised-my-son-free-robux-game-hack In PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-tiktok-accounts-and-passwords_GM835599320.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_off00002d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D34 22232 bytes
SHA-256: b8588608988264019e3a74d20f108f359d05be5c228888d3e321730abcb65c4c
font_01_sfnt_off00005ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBE 19444 bytes
SHA-256: 6593f4e1ca527274dc91d112dc435aa157e33331642105ece820a83e227687ad