Malicious PDF — malware analysis report

Static analysis result for SHA-256 afce05080e6ee9e6…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 21:16:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 74f92f257f855dda82a8d0879e1556ab SHA-1: 044cebe6b9bcee6eedfebf2b4062de219a3ca5f0 SHA-256: afce05080e6ee9e6865dafe38d90d17897355d88bfece6b0cf449f183f7536c6
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-free-robux-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/good-robux-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-free-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/download-game-roblox-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-be-a-hacker-in-roblox-like-john-doe_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/real-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-exploit-with-cheat-engine-in-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/bin-xterm-pastebin-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/tiktok-free-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-accounts-phantom-forces-account_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-hacks-pastebin_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-on-roblox-with-builders-club_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_off00002d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9D 22492 bytes
SHA-256: 2586a92d68c216c3eb722f75a345933b817d5e639dfd8a99d98e99af533269ab
font_01_sfnt_off00005f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 18716 bytes
SHA-256: ae86725dd70d168e8b5a24377d7effb3bd88f81667aa3e091abc0f5759eb354b

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