Analysis
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max time kernel
146s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19-03-2023 00:20
Static task
static1
Behavioral task
behavioral1
Sample
4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe
Resource
win10v2004-20230220-en
General
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Target
4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe
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Size
1.9MB
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MD5
828e5145c076da94aefc34bac1a4fdc3
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SHA1
433e55b78f47f956a78b3ad51d2162468e2d277f
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SHA256
4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0
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SHA512
ad516843e7c287af9a6aed41a987eb059ea191836687219e5fde75069f43bf8318d1cb3dd25df32797fa9cf6a4c5525af60d46b00d63c838eb5704f8649ab85b
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SSDEEP
49152:GtP4k4khOWUXGLuK2fj06WbCMq7ekzO9T:GFLwXEuK2fjSbdkz
Malware Config
Extracted
laplas
http://45.87.154.105
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api_key
1c630872d348a77d04368d542fde4663bc2bcb96f1b909554db3472c08df2767
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3364 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 32 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2880 wrote to memory of 3364 2880 4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe 85 PID 2880 wrote to memory of 3364 2880 4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe 85 PID 2880 wrote to memory of 3364 2880 4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe"C:\Users\Admin\AppData\Local\Temp\4fbb0bcbc6baaba9f3e438708a4c2d2091489b5ff42bc10bf7d07721597feec0.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2880 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
PID:3364
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
714.9MB
MD5137ff3ddee8b7e6cc2bdc0e62af97705
SHA1051a3b52cd9c00b3ceb17ac4a985a9075784166c
SHA2565f6e5b116e55ca059fa3cae3107231c68be7f1f8675090b62cb7fd8ae09b6bcd
SHA5123215e835d6707819d7f626d2fecaaa4cc71a2c93e162ca2ffa21a1a4ca3bf0a3a4f5b2dd56a1c8f18beeb2d181b7e2fa493b696ff5b482f76be1a2fc29171776
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Filesize
714.9MB
MD5137ff3ddee8b7e6cc2bdc0e62af97705
SHA1051a3b52cd9c00b3ceb17ac4a985a9075784166c
SHA2565f6e5b116e55ca059fa3cae3107231c68be7f1f8675090b62cb7fd8ae09b6bcd
SHA5123215e835d6707819d7f626d2fecaaa4cc71a2c93e162ca2ffa21a1a4ca3bf0a3a4f5b2dd56a1c8f18beeb2d181b7e2fa493b696ff5b482f76be1a2fc29171776