PDF malware analysis — malicious · 060bfdb3558fe779

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 17:24:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: f5e7791d908c4b0f1bfaa0f7265e13ce SHA-1: dadbf7b0b95d6f20491a8b44d88106b154c1c5db SHA-256: 060bfdb3558fe779dbcf0383e976b72bce814d9d8da015e9164b14ada4efbf48

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that form a link farm, predominantly related to game cheats and free currency for popular mobile games like Coin Master and Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links designed to appear as legitimate search results, while 'ML_NYX_PDF_MALICIOUS' strongly suggests malicious intent. The presence of a 'download button' lure further supports a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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 http://netcdn.tw/app/406889139/free-coins-coin-master-iphone-game-hack PDF link annotation
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-robux-2021-on-a-chromebook_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-roblox-game-passes_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-money-glich-cheat-in-theme-park-tycoon-2_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-free-shirt-templates-white-suit_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-be-a-roblox-hacker-and-hack-accounts_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-do-i-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/hack-coin-master-ios_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-ninja-legends-free-vip-server_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-necklace-free-shipping_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-hats-roblox-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-adopt-me-free-plush_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-free-spins-link-31-march-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
`font_00_sfnt_off0000311b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x311B	22232 bytes
SHA-256: `ecbdfb27a5fd9961313a3e03bf824d4e997abae88b6f7f32e009397edbac08cb`
`font_01_sfnt_off00006279.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6279	18340 bytes
SHA-256: `30781d46c9e61b7b1a0f84e620c871c295e19140ef15a20a5b93ccdb3b5c2c15`

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