Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0d2d27993dbb2f1…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 00:21:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7b2cd3d76f89fd89aad4196fae8d0e8d SHA-1: baabe44463cee9763e8246db902b55d682287d15 SHA-256: b0d2d27993dbb2f1b735f74da995e5d8ca29f767fcc0fab8f2e9cb4be6fef775
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/minecraft-app-free-download-game-hack. This link is presented as a lure for game hacks and generators, indicating a social engineering attempt to trick users into visiting a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious.

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.tw/app/479516143/minecraft-app-free-download-game-hack In PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-level-7-executor-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/scripts-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-robux-installer_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/tiktok-free-ebooks_GM835599320.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/roblox-bucks-for-free_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-tiktok-that-you-dont-have-to-download_GM835599320.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://elearningku.mts-muhajirinsby.sch.id/__statics/gudangsoal/files/coin-master-hack-app-ios_GM406889139.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_off00003148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3148 21520 bytes
SHA-256: a73ecaf6a3b0174019b1146c90c4c839c0649e15079a6c3f2e88ef4a8706debd
font_01_sfnt_off0000604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604B 18756 bytes
SHA-256: 72c54d91d5a4dc086e8c017e5e8399116108414dfe22b47c0e31188f63af6e51

Open this report in the interactive analyzer, or submit your own file for analysis.