PDF malware analysis — malicious · 7e5978db41d2c6e1

MALICIOUS

PDF

40.2 KB Created: 2021-05-10 14:08:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 636e1772709f82ad4b6ffac9d8ea84df SHA-1: 0880a3eaece4937ac4a947fa4c1d2b81066c1cad SHA-256: 7e5978db41d2c6e1095d9c548552cc53d650f71efd79cec3026aab35ea7256dd

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

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 0.9972

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/coin-master-15-free-spin-link-of-last-5-days-game-hack PDF link annotation
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/easy-robux-com_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/level-coin_GM406889139.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/give-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/roblox-data-breach_GM431946152.pdfIn PDF document text
- https://www.e-learning-mis-nurussalam-keblama.com/__statics/gudangsoal/files/how-to-get-free-robux-com_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_off0000419a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x419A	25228 bytes
SHA-256: `d0c92a35a44f59357a4a0bbf81d59e139cbb6dcd226cfee8a1f798bcff2b8de7`
`font_01_sfnt_off00007a1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A1D	18644 bytes
SHA-256: `4144dbe1534d0325d37e4c6129895ddb34a2bc26123e242025982d4ceef1bd2b`

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