Malicious PDF — malware analysis report

Static analysis result for SHA-256 576f56c58772be8d…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 07:03:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2137f5b54801abadb47f29b8600a2660 SHA-1: c1042888af892531f8c9f14781e34aece1950c08 SHA-256: 576f56c58772be8d108a87a8b48c51767615dd8f98f81b631a2aead31e9ec6c7
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links disguised as game hacks and generators, a common lure for malicious downloads or phishing. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of these links. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.co/app/431946152/roblox-prison-life-wall-hacks-game-hack PDF link annotation
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/hacking-in-parkour-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-hack-mod-menu_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-get-free-money-on-lumber-tycoon-2-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/gravity-switch-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-make-a-cool-free-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/pastebin-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-ipad-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/case-clicker-hack-roblox-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-and-fast-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/robux-hack-may-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/hack-robux-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1balangan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_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_off0000336b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336B 22568 bytes
SHA-256: 22c019142cf3b80cff31690a0516268c5b99bc5315277d3dee7ede74974c0757
font_01_sfnt_off000065f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F9 19128 bytes
SHA-256: a82f839daff57daf40f677c58c5acbce7dbd86e7ef8f8e5aa6a4b9f547c3c067

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