PDF malware analysis — malicious · 91fc95e6e29e7f95

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 17:18:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 9790d1d2caa206e220f57482da540d0a SHA-1: 09b42727060e22fd9eacefa22f04a98a0582b7b4 SHA-256: 91fc95e6e29e7f9523e2b0594bef38c13ac7726e58b262cae9e8a83adbbc457a

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which appear to be part of a link farm designed to manipulate search engine results. The document body and extracted URLs suggest a lure related to game cheats or free items, which is a common tactic for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/how-to-hack-roblox-jailbreak-game-hack
- http://jdleducation.com/images/how-to-get-free-roblox-items_GM431946152.pdf
- http://jdleducation.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdf
- http://jdleducation.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
- http://jdleducation.com/images/coin-master-email-rewards-link_GM406889139.pdf
- http://jdleducation.com/images/martian-lettuce-coin-master-free_GM406889139.pdf
- http://jdleducation.com/images/haktuts-coin-master-today_GM406889139.pdf
- http://jdleducation.com/images/roblox-but_GM431946152.pdf
- http://jdleducation.com/images/blogger-coin-master-free-spins_GM406889139.pdf
- http://jdleducation.com/images/minecraft-free-download-iphone_GM479516143.pdf
- http://jdleducation.com/images/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdf
- http://jdleducation.com/images/robux-download_GM431946152.pdf
- http://jdleducation.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdf
- http://jdleducation.com/images/synapse-roblox-free_GM431946152.pdf
- http://jdleducation.com/images/coin-master-hack-game-download-ios_GM406889139.pdf
- http://jdleducation.com/images/how-to-get-free-robux-no-survey_GM431946152.pdf
- http://jdleducation.com/images/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdf
- http://jdleducation.com/images/daily-coin-master-free-spin-apk_GM406889139.pdf
- http://jdleducation.com/images/is-minecraft-free-on-nintendo-switch_GM479516143.pdf
- http://jdleducation.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
- http://jdleducation.com/images/free-links-to-coin-master_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000049b3.bin` `7bc49011a3a112e311461f7f362b0ba6400807ab511078805b5029866635e0a6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49B3	24492 bytes
`font_01_sfnt_off000081ed.bin` `f85879c678901057cc908d94130b71f9fb6e8ee5be1c9db29d303049c5d159a2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81ED	18632 bytes

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