PDF malware analysis — malicious · a871821dfc8b6aea

MALICIOUS

PDF

43.0 KB Created: 2021-05-11 13:13:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: bb778db8d51e6ef9e1a70d2fa9a77994 SHA-1: b35696c6eec1f89368e3459d5a7e62be7a3c25b3 SHA-256: a871821dfc8b6aea52b18cd9fa6393a273e5105bdc123a6835103a7bbd44daa5

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 0.9971

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/479516143/minecraft-free-computer-game-game-hack PDF link annotation
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/robux-earning-sites_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/village-coin_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-robux-safe_GM431946152.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-coin-master-game_GM406889139.pdfIn PDF document text
- https://e-learning-mtsalmusyarrofah-jakarta.com/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.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_off00004e43.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E43	24744 bytes
SHA-256: `1f6d0bb1fb8d7b207dc0aae8777ee4a669660726faa491585fdb856930497d72`
`font_01_sfnt_off00008623.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8623	18284 bytes
SHA-256: `652d84a18e1638f498f678590eda8b7b1302fb3a862e9e0847db70e42b725810`

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