Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e7926bda038c45…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 13:13:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e5c27b366767d76812e50e94f65e80cf SHA-1: 69fe61464a4667b95fff6a3fdb666a51b555fbe4 SHA-256: 34e7926bda038c45cc613ed88c17b9d929a9a693a38db31379037f2dfb7395f1
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to game hacks and free generators, presenting a fake CAPTCHA to trick users into clicking a link. This link, http://netcdn.tw/app/479516143/how-to-setup-a-minecraft-server-for-free-game-hack, redirects to known malicious infrastructure. The document's structure and embedded URLs suggest it is designed to lead users to potentially harmful content or further malicious downloads.

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.tw/app/479516143/how-to-setup-a-minecraft-server-for-free-game-hack In PDF document text
    • http://mbbs.hr/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/i-robux_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/hacks-for-fallen-that-actually-work-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/free-roblox-email_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-how-to-join-builders-club-for-free_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/descargar-hack-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/robuxy-free-robux_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/hack-initiate-unlimited-free-robux-40m_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/hacking-roblox-tags_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-hack-the-powerplant-inside-roblox_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/fre-robux-on-pc_GM431946152.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_off0000302b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302B 22660 bytes
SHA-256: bf04a42c133a08b2fc099dc9dbdbfd11029b8e38b5d1f33c010af2eca779b164
font_01_sfnt_off0000625b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625B 18592 bytes
SHA-256: 4b40ee072286608b3d74a0cb4ed346ad8a5977f91bfb22046a7a3c91dcad46b1

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