Malicious PDF — malware analysis report

Static analysis result for SHA-256 a10f05f7fd4813d1…

MALICIOUS

PDF

34.2 KB Created: 2021-07-02 08:01:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: ea2de9537a4e04a78160345151a09352 SHA-1: a9f22d92a9ac40d04c49828696cbcac46f434d22 SHA-256: a10f05f7fd4813d10d3ee70097fcb1a937165a80e43e348c6265ccd60f3b4d77
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/how-to-hack-roblox-murder-game-hack, lead to known malicious redirector infrastructure. The document's structure and content strongly suggest it is part of a phishing or scam campaign designed to lead users to potentially harmful websites.

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/how-to-hack-roblox-murder-game-hack In PDF document text
    • http://gts.edu.gh/library/repository/hack-magic-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-knives-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/list-of-hacked-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/best-items-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-dump-account-june-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-ios-android-pc-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-hack-999999-robux-movil_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-without-human-verification-on-pc_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hes-hacking-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/cheat-engine-gui-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/google-console-roblox-hacks_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_off00002e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E17 22308 bytes
SHA-256: c7ff835ef56130db1560ca30c5385205da0b9182e79f5786ff56f5bab93dc3dc
font_01_sfnt_off00005fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB1 19332 bytes
SHA-256: 2fca3cd2dbd69141fab2b4d342479c481fd321f9352c1e46ef1af1c5b322034b