Malicious PDF — malware analysis report

Static analysis result for SHA-256 956ca288b9d7dad3…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 13:22:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1db035db589278db802bd0ed7c3195e2 SHA-1: 222bf4fcb4e0ec96c15602313561c8a3e1013e6a SHA-256: 956ca288b9d7dad324a04aeb4ebc7126be65abcb6095c206e365934aaf29d0c2
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.tw/app/431946152/free-robux-hack-2021-game-hack PDF link annotation
    • http://library.unissula.ac.id/fk/repository/unpatchable-robux-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-free-admin-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-how-to-put-gear-on-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-scam_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-no-survey-no-download-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/robux-no-human-verification_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
font_00_sfnt_off000032cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32CC 22584 bytes
SHA-256: 48c49186e631b9d95dab4ddb73e2b4fdb41ff7e4a12d72f4e388d9fd50bb23f3
font_01_sfnt_off00006516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6516 19288 bytes
SHA-256: f0e75447e64b5aff6e0a409bd439ae7070421d1013f4950abf0614a44f9f6dfe

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