PDF malware analysis — malicious · 215a19eb67c519d5

MALICIOUS

PDF

50.0 KB Created: 2021-05-22 04:06:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d79a7462a38be75fdb5831cbf019af7a SHA-1: 725bb6aa711e358591ce1594d2da5068a4288361 SHA-256: 215a19eb67c519d5742f502953be9302ccc5756fc2806aedef969440c5fe6dba

130 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising a "free generator / game hack" for Coin Master. The document body also includes a call-to-action phrase, reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier suspicious score 0.3334

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/406889139/how-to-get-free-spins-for-coin-master-game-hack In PDF document text
- http://stroybelan.ru/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
- http://stroybelan.ru/images/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
- http://stroybelan.ru/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- http://stroybelan.ru/images/free-robux-hack_GM431946152.pdfIn PDF document text
- http://stroybelan.ru/images/buy-robux-free_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00003678.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3678	27632 bytes
SHA-256: `d73c5468e3910940fee4bf05c6cfc4241f82749a7b6a28443ca88af9702804cd`
`font_01_sfnt_off00007674.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7674	3088 bytes
SHA-256: `e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222`
`font_02_sfnt_off0000813f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x813F	7960 bytes
SHA-256: `cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2`
`font_03_sfnt_off00009464.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9464	18052 bytes
SHA-256: `3cfae0e628493b06a11893ba870a091d0c1d4835c1ebffdd70b8f2a1c7d637a9`
`font_04_sfnt_off0000b5a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB5A8	4272 bytes
SHA-256: `fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0`

Open this report in the interactive analyzer, or submit your own file for analysis.