Malicious PDF — malware analysis report

Static analysis result for SHA-256 99e711a3ede5fe08…

MALICIOUS

PDF

46.4 KB Created: 2021-05-15 12:58:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d10462201ac0374f868d0a9e3db6069 SHA-1: fd586898e6c3b8a7dc0de0ea17c2341850cad35f SHA-256: 99e711a3ede5fe086216dc386380cb6a6a13449f970e0dac5c71ebd4f5772f2b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The embedded links likely lead to further malicious content or downloads. The document's primary purpose appears to be directing users to potentially harmful websites under the guise of providing game cheats or generators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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 https://netcdn.xyz/app/406889139/daily-coin-master-free-game-hack In PDF document text
    • https://and.co.id/assets/CKImages/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-free-spin-links-december-30-2021_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/rewardex-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/coin-master-rewards_GM406889139.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/picture-roblox_GM431946152.pdfIn PDF document text
    • https://and.co.id/assets/CKImages/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a29.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A29 27832 bytes
SHA-256: 3a09f46cfbb9b0625fd7e73320ed6edf7913ba5a80a619e4ebe2243249d75dad
font_01_sfnt_off000088cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CC 18132 bytes
SHA-256: f675a037fef76fd82d09f8680fbeb6a72eeb7684feda5ffd824d9b16b19a33e7
font_02_sfnt_off0000aa41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA41 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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