Malicious PDF — malware analysis report

Static analysis result for SHA-256 7034b897b98dfca3…

MALICIOUS

PDF

33.1 KB Created: 2021-07-04 14:38:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6ec7abcfbdafe8910445c5a71e5dc5ca SHA-1: 478b663d97be99660b8ebd0e3cdffc6bad9aff0b SHA-256: 7034b897b98dfca3b42f4f68490bc82298228c892ac6de5db4dc20d828419db8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary redirector URL is http://netcdn.tw/app/406889139/coin-master-free-coins-link-2021-game-hack, which likely leads to further malicious content or malware downloads. The document body and embedded URLs reinforce this lure-based social engineering tactic.

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.tw/app/406889139/coin-master-free-coins-link-2021-game-hack In PDF document text
    • http://mbbs.hr/files/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/free-tiktok-followers-no-human-verification-2021_GM835599320.pdfIn PDF document text
    • https://mbbs.hr/files/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-uc-on-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/who-hacked-cuteluccy9-on-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/phantom-forces-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-studio-free-online_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-on-a-roblox-game-for-free_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-really-working-no-password-no-verify-robux-generator_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/monttechscom-coin-master-free-spins_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_off00002d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D33 21948 bytes
SHA-256: 22bb1635fb6648c9e7b058ff3136ebf1e2c88873db1127283b618eae5d51b01c
font_01_sfnt_off00005dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC7 18568 bytes
SHA-256: 5c6f2b8c8950227f34c0c7c762a0319831c5dcbb819f0110f1dbfe9ff8d1e338

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