Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c3834520e84b74…

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 15:03:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: a892d3c08ffbb6cf248273e20d678876 SHA-1: 2d8afb82accae33afa0e9397aaa529732c760a0d SHA-256: 00c3834520e84b7475c4b84c178567618d935eafd0b3859530c8871a04527278
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, one of which, 'https://netcdn.xyz/app/406889139/coin-master-online-free-spin-game-hack', is flagged as a malicious redirector. The document body and other URLs suggest a lure related to game hacks or generators, likely intended to trick users into visiting malicious sites. No scripts were extracted, but the presence of multiple malicious links indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-online-free-spin-game-hack In PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1banjarnegara.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-free-robux_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
stream_003_off00004bf0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BF0 24128 bytes
SHA-256: 2bdeb9c8233a483ff07c9402d964e06998ff5921d4bc280010c2d7c06255a1df
font_01_sfnt_off000082a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A5 17960 bytes
SHA-256: 2c7fa3368334b97167a94522378fa280712522cebcffba168a6fd88a865d6a90

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