PDF malware analysis — malicious · 68ebeebc958d4be9

MALICIOUS

PDF

35.8 KB Created: 2021-07-08 01:46:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: eede3b4a59f5014a7b90e3988aae3082 SHA-1: 21944b7353f0493d867ef5568c5079ec6e530c94 SHA-256: 68ebeebc958d4be95c99c56ea6e3b151464b4f588da6dcecfe0acdb08d076e10

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which point to SEO-optimized PDF files related to game hacks and cheats. The primary URL, http://netcdn.tw/app/406889139/500-free-coin-master-spins-game-hack, suggests a lure for in-game currency. The extensive link farm detected by the PDF_SEO_LINK_FARM heuristic indicates a coordinated effort to drive traffic or distribute further malicious content, likely through a phishing or scam campaign.

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/406889139/500-free-coin-master-spins-game-hack PDF link annotation
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-robux-2021-no-download_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-robux-easy-december-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-bloxburg-for-free-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/flob-fun-robux-hack_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-create-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-become-a-admin-in-roblox-no-hacks_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-iphone-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-robux-youtube_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-hack-sin-verificacion-humana_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-hack-roblox-with-lucky-patcher-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-use-money-hack-in-roblox-any-game_GM431946152.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://elearning.mtsngresik.online/__statics/gudangsoal/files/hackear-juego-coin-master_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_off00003570.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3570	22832 bytes
SHA-256: `0824684f147284aefdc47da9abe5a75a83cd87f2cbe61c983e1bd417f1385835`
`font_01_sfnt_off000068a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68A9	18480 bytes
SHA-256: `73c3da9d0f6a331a6fde753084a8aebf2b702254561fcc1354a5e6554f17134d`

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