PDF malware analysis — malicious · c52bc83b39f6086e

MALICIOUS

PDF

45.7 KB Created: 2021-05-16 01:32:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 670a835ff1c264b51171077c138b2d99 SHA-1: ac78ea56ec9cd2696f78040a4651c70c428ebdf4 SHA-256: c52bc83b39f6086e6fcbc896fdb55af5490a816e7681eebeb6f2338282fdcbf6

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded URLs that redirect to download sites for game cheats and hacks, such as 'minecraft-1.8-9-hacked-client-game-hack'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms these links point to malicious infrastructure. The ML classifier also flagged the document as malicious, supporting the conclusion that this document is intended to deliver malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

Heuristics 3

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-1.8-9-hacked-client-game-hack In PDF document text
- http://malichy.pl/images/minecraft-items_GM479516143.pdfIn PDF document text
- http://malichy.pl/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
- http://malichy.pl/images/free-robux-games_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
- http://malichy.pl/images/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/how-to-get-free-skins-in-roblox_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://malichy.pl/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://malichy.pl/images/e-free-roblox_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.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B5A	26904 bytes
SHA-256: `e23eff692dbe5d40e72e4953dc46f37af42a85f54b1fd0c012f9ec76c0a70f7b`
`font_01_sfnt_off000085cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85CF	2820 bytes
SHA-256: `96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689`
`font_02_sfnt_off00008f70.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F70	18532 bytes
SHA-256: `397fe146c4cb21b8fa0568cb6b824f44c66529b57f9939d7b0b2fcb40fe95c7f`

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