PDF malware analysis — malicious · d455defb03aaf2ed

MALICIOUS

PDF

44.5 KB Created: 2021-05-15 10:39:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a0067354635599f0e6e2ad4e7c010632 SHA-1: 2d26514e3e16d251279027a0d788c42018714dc3 SHA-256: d455defb03aaf2ed07b7e8b020955c806eeb385f7a9fde6e2bbdaa1d901a928a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/spin-coin-game-hack PDF link annotation
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/robux-hack-me_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/roblox-people-girl_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://www.vaytechceramic.com/uploaded_files/userfiles/files/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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
`stream_003_off00004af3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AF3	25036 bytes
SHA-256: `aab5e0b36399fb612ee2e77ff63946de3147c9d6340b60cf759a2115f7677248`
`font_01_sfnt_off00008421.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8421	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008e0b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E0B	17392 bytes
SHA-256: `b56bff47aa771abc34fd6f7ab31864e8be47b484c749d0c581bff3c59f183b7a`

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