Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bfccb94ae9dcd7f…

MALICIOUS

PDF

32.8 KB Created: 2021-07-04 07:32:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 43a5876249f7f800b9d5c96cccc2d5b3 SHA-1: 30e1d9e2fb6fcf94748b0c78ecfcee3d2f07dd4c SHA-256: 2bfccb94ae9dcd7fe370f7be786f3b9fe7e00aa2a80c55403b586153ec7722de
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free in-game currency or hacks. The primary link, http://netcdn.co/app/431946152/bux-free-robux-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a phishing campaign focused on popular online games.

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/bux-free-robux-game-hack In PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/pubg-uc-mod-2021_GM1330123889.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/robux-get-com_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-to-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn4madiun.sch.id/__statics/gudangsoal/files/how-to-get-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
font_00_sfnt_off00002e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E21 21128 bytes
SHA-256: 955dd37b855f023cb5cdb193de7c81f4b328c14c128e57bbcd02b5bec4344b16
font_01_sfnt_off00005c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C03 18716 bytes
SHA-256: 387288f024d8c8f54f23c256e97e071e9b3801b919dc08d0a5cbca9b70f610f0

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