Malicious PDF — malware analysis report

Static analysis result for SHA-256 b10a63a61a51b991…

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 11:33:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 32c5938783d33da5a1860ce3d470a6ec SHA-1: aad8a1485d1c31c2f0328aefb802bb78c4a8fcfd SHA-256: b10a63a61a51b991ce12dcfcc83e1890aae5bcdb4fe850db46d308d2f2eb1ca8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to free game currency and hacks, directing users to a known malicious redirector. The ML classifier strongly indicates maliciousness, and the document body contains multiple URLs that likely lead to further malicious content or downloads. The primary attack pattern involves luring users with promises of in-game benefits to a malicious site.

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.co/app/431946152/how-to-get-robux-for-free-2021-game-hack In PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-apocalypse-rising-hack-2021_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/make-robux_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-clothes-wiki_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-script-pastebin-10-29-2021_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/copying-roblox-games-for-free-v3rmillion_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-avatar-clothing_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/fond-dcran-gamer-roblox-hack_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/cheat-engine-roblox-speed-hack-code_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3356 22540 bytes
SHA-256: 3f17df9407c95d1db3ac9687823a855efc2b603988e1f880dfe0e1004b2266dc
font_01_sfnt_off00006586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6586 19384 bytes
SHA-256: de28a66561f48ef455a7e74c3d38ef737581a70ecb9f32033b07134a01356d69

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