Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a6546f3e376116…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 04:51:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c638d58f6fa5694f44b5b555c4d8e9d3 SHA-1: ad120badb285081db93fdd0bf17f8b553659d5d6 SHA-256: 59a6546f3e376116bde5f24cdb6bd375d6fdb28f4e068376c67bf8c6b1601a78
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, using the promise of free game currency and hacks to trick users into clicking malicious links. The document contains multiple embedded URLs that redirect to further lures, indicating a chain of malicious content delivery. The primary malicious redirector identified is http://netcdn.co/app/431946152/how-to-get-free-robux-2021-upatchable-game-hack, which likely serves as a gateway to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • 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) or Microsoft license-boilerplate 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
  • 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-get-free-robux-2021-upatchable-game-hack In PDF document text
    • http://jbtlive.com/assets/CKImages/files/how-to-hack-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/real-roblox_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/roblox-dbz-rage-cheats_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/proto-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://jbtlive.com/assets/CKImages/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000306f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306F 22616 bytes
SHA-256: a95bfbe3fb066199cb3bf9a9fb4c5566a4e82f95d1095a423a143479397133d2
font_01_sfnt_off000062d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0 19804 bytes
SHA-256: fa1346cbe7d29ecb0e60633efa4256cd54169c2a76920a790f79d169ef55512e

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