Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceebfecd5f7ee238…

MALICIOUS

PDF

50.3 KB Created: 2021-05-20 01:35:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5ec4777e9e02e7e97a46dc7ecefef692 SHA-1: abff5a9e68e048dd3c80a2c7f5d6c2892b754b67 SHA-256: ceebfecd5f7ee238d0d9460ff3687eedd57db1853f0c78c3575bf8297a6596bf
200 Risk Score

Malware Insights

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

This PDF document employs a lure for free Robux and game hacks, impersonating Microsoft to trick users into clicking a link. The link redirects to malicious infrastructure, indicating a credential phishing or malware distribution attempt. Although no scripts were directly extracted, the PDF structure and embedded links suggest it is designed to exploit user interest in online games and virtual currency to compromise their accounts or systems.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-robux-live-game-hack.
  • 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/431946152/free-robux-live-game-hack In PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/tiktok-free-or-not_GM835599320.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/como-hackear-coin-master-sin-verificacion-humana_GM406889139.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_off00004dab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DAB 29980 bytes
SHA-256: 9733b3a658d99c3843c6ca03a07d89f7dd3814cf9af342f23c554efbbd714d2f
font_01_sfnt_off0000925c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925C 4660 bytes
SHA-256: b8980cdac4d025496d9fe039d8c05bb5b9bae1b804244a1f9c05e9663db72816
font_02_sfnt_off0000a26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA26C 18248 bytes
SHA-256: 2e5a72f8344bcf9b425e9fd022f0a9c5c2029812f1a4b00ba9f2a8ee504eb572

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