PDF malware analysis — malicious · c8542ec9efc4b605

MALICIOUS

PDF

33.3 KB Created: 2021-07-07 11:47:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 7f548ca5ddc5663a915da91e08fc9c66 SHA-1: 4921ed2943aa30cf2ec67b6556a33a07dc94a516 SHA-256: c8542ec9efc4b605ac4bccb366b5fdca9ffc15e80a4ad79184ca72afa57aaf65

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains an embedded URI pointing to a "minecraft-fly-hack-game-hack" download, strongly suggesting a lure for malicious software. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate an attempt to trick the user into downloading and executing a payload, likely via a spearphishing attachment.

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/479516143/minecraft-fly-hack-game-hack In PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/app-master_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-hack-sahrbite-pastebin_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/caught-my-girlfriend-cheating-in-roblox-online-dating_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-catalog-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-hack-robux-no-download-no-pub_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-hack-into-someones-roblox-account-2021-on-ipad_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/robux-for-offers_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-hack-download-mobile_GM431946152.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000317c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x317C	21492 bytes
SHA-256: `a0d8bfe8df68ca933ae47e86da32f7828e108a1ac4af9fbbcc543ac1ef104e9c`
`font_01_sfnt_off00005f9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F9B	18280 bytes
SHA-256: `56f87322d6175f5188b2f3e54b3290a6e5898c7bed8f3d8c577e55e984b17e01`

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