PDF malware analysis — malicious · 5efaa6ca82a8c7d5

MALICIOUS

PDF

50.6 KB Created: 2021-05-16 04:29:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 935f369824f32875ac2a825d0fd60fbb SHA-1: a416897940fddf9983b07657c058f170fce13f73 SHA-256: 5efaa6ca82a8c7d5eb11f3364f51f2cc5e27a833b0a943de742d9d10156479e8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a heuristic firing for 'SE_SECRET_RECOVERY_LURE', indicating it attempts to trick users into revealing sensitive information like private keys or passwords under the guise of game cheats. The presence of external URIs and the ML classifier's high confidence score further support its malicious nature. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.8594

Heuristics 4

Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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/406889139/coin-master-cheats-2021-game-hack
- https://www.contabilidadesomma.com.br/images/easy-robux-hack_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/robux-survey_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/roblox-hack-game_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/hacker-coin-master_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-hack-iphone_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/roblox-rape-hack_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-free-spins-haktuts_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/roblox-zone-free-robux_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-hack-https-coinms-net_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-hack-pro-gamers_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-hack-for-android_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/minecraft-anarchy-server-no-hacks_GM479516143.pdf
- https://www.contabilidadesomma.com.br/images/free-robux-only-1-step_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/how-to-get-free-coins-on-flip-master_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/xray-mod-minecraft-114_GM479516143.pdf
- https://www.contabilidadesomma.com.br/images/coin-master-free-spins-link-deutsch-ios_GM406889139.pdf
- https://www.contabilidadesomma.com.br/images/free-robux-no-scam_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/robloxhacks_GM431946152.pdf
- https://www.contabilidadesomma.com.br/images/free-coin-master-credit_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00005061.bin` `385b8d4567f3e40a934e15ef320bad5f8daa854f9fe535d90f647e2b4f357797`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5061	27684 bytes
`font_01_sfnt_off00008f0e.bin` `a9b0c6eea09fba520e7972e91c4ff6a94e4d206f593c474aec2bf9d1c5d17794`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F0E	2900 bytes
`font_02_sfnt_off00009919.bin` `8fd2be34c5ae6d36bafabdc0d90731bcc2dba590b40522d9b75e2e7b006908cc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9919	18112 bytes
`font_03_sfnt_off0000bab7.bin` `e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBAB7	3264 bytes

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