PDF malware analysis — malicious · b7ff15e6dbea77c6

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 15:25:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7dc8cc9e31bf8aca6e70814da18e204f SHA-1: 239ea041e4615edb9c34a970af11d0bd850bcc59 SHA-256: b7ff15e6dbea77c67bbf688f74ee502fdc00d9ff2e05325daea1681367951665

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains embedded URLs and text referencing game hacks, suggesting a lure to download malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and command-line related tokens further supports a malicious intent. The document likely serves as a phishing attachment to trick users into downloading malware disguised as game cheats.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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/431946152/roblox-cmd-hacks-game-hack
- https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-hack-mod-apk-2021_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/earn-robux-for-roblox_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-ios-2021_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/mobile-hack-net-roblox-hack_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/hack-robux-free-generator_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-now_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-free-online_GM479516143.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/cheat-engine-hack-in-roblox-high-school_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-roblox-accounts-2021-v3rmillion_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/roblox-stats-hack_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-real-working_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-hack-someone-in-roblox-easy_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-minecraft-svg-cutting-files_GM479516143.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/pokemon-go-free-balls_GM1094591345.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-app_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/robux-hack-tools_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdf
- http://netcdn.tw/app/431946152/roblox-cm
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000030e8.bin` `fc4b2715f23dfd3beaef610aba7738b82ce03182ec68595985ad6fcee4f6f529`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30E8	22680 bytes
`font_01_sfnt_off000063cd.bin` `528b486b939350902aae676445d7e7a4af39f51406cc47f7167705f53401052d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63CD	19092 bytes

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