PDF malware analysis — malicious · f26cde317f451b12

MALICIOUS

PDF

43.0 KB Created: 2021-05-17 14:41:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 262fbd4f755489729737048fce2c5f0f SHA-1: 9e76cfb456c52655868f26fd1de211dc700b8f08 SHA-256: f26cde317f451b120287bcfbda6de34f760b1f4ebb34b6eb44d2114dfd008568

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and generators. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it links to known malicious redirectors. The document body, though partially corrupted, contains URLs that are consistent with a lure for potentially unwanted or malicious software.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-pocket-edition-free-game-hack In PDF document text
- https://emindonesia.com/assets/CKImages/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/coin-master-twitter_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/mcpe-optifine_GM479516143.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
- https://emindonesia.com/assets/CKImages/files/com-roblox_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
`stream_003_off00004e6a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E6A	24788 bytes
SHA-256: `d8323dd40ce8b69f2a062580f2a3e9c487ebe83dfdfe5595b253e82e2098afe5`
`font_01_sfnt_off0000862f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x862F	18208 bytes
SHA-256: `2ed6c6c26b313aca39a14255061e0cb7ebbe0fc3f7500b174c0a7a92c92a7b7b`

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