Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bae371c3bc55f8…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 13:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c7045580df21f72f2ed76c026bb29ac9 SHA-1: e52a1d95ae94a89bdae3fac06fe64d2a3f130378 SHA-256: 62bae371c3bc55f82503a6fdc0f1ba79d437a42d6a6b09c9313b05b0e428fe14
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a common lure of game hacks and free in-game currency to entice users. It contains multiple embedded URLs, including one pointing to 'netcdn.tw', which is flagged as a redirector for game hacks. The ML classifier strongly indicates maliciousness, and the overall pattern suggests a phishing or scam attempt designed to lead users to potentially harmful websites.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/coin-master-game-free-spin-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/xyrex-roblox-hack_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/top-10-roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/hack-para-roblox-kick-off_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-cheats-com_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-mass-hacked_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-backpack-code-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-a-hacker-banned-on-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-codes_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_off000030f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F8 22708 bytes
SHA-256: 6f81676d20907703ffa1f5930a840d698e76c5a131fb3ecd05628ba94b7c99a9
font_01_sfnt_off00006383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6383 18432 bytes
SHA-256: a81ce85ab1d38efd73dc51b1055ee083833faa1669764d0dac9c9c7e0fbc8d78

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