Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
19-03-2023 20:22
Static task
static1
Behavioral task
behavioral1
Sample
4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe
Resource
win10-20230220-en
General
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Target
4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe
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Size
1.9MB
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MD5
aa3321fbcbc033da9e097aacf740fdc5
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SHA1
e9ecea40f56118e22d2d2bd53588d53804b2e91f
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SHA256
4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f
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SHA512
f8459386d1ec1151b1217587111a14584e2cf3086f2895e9c6ec67a3d50df93d20213e482999895ff9d0f58b3b9311254457a21fd15e14995cba5726758a7caa
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SSDEEP
49152:6mylYU6zFfVEiRKX5+7zYNdaHMufOS40NxTmClzh/:6mygzF9tgXU/YvFGOS40NBm8h
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 3124 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3346939869-2835594282-3775165920-1000\Software\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 1 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1804 wrote to memory of 3124 1804 4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe 66 PID 1804 wrote to memory of 3124 1804 4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe 66 PID 1804 wrote to memory of 3124 1804 4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe 66
Processes
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C:\Users\Admin\AppData\Local\Temp\4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe"C:\Users\Admin\AppData\Local\Temp\4ca3dbb5395f00dd3e6a76add2069626e3db6222be3b8bba9a29444c5960f47f.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1804 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
PID:3124
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
785.9MB
MD53310c72f0464c3f0b554849b40f02991
SHA1fd9f2cd644cf59cbbc32fec367f3346146c09e7d
SHA256ef315910696d806d19d87141268168e6913a5230fb1e0685da4802387c500213
SHA512ac045b4f61564de1dc98a379d34818cf6f8b543587f20d968ebce04d27e2f1bb6eb4fccab38421d1d2e4b1057fd35b3204237bf00f591105f2116ad43ecedc93
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Filesize
727.4MB
MD50c19ec9f952f5ceac403b662c06ef825
SHA19eb5b8ce8abc800e14d8c2eee7b93d95f9c9c4bd
SHA256e2e15d53afe73ed80a2e0cf38a0ab457b23a0a5dc408b4bdbfc623a5365b6d4f
SHA51205ff2de698ce3a37b022c7b0d5e4d73fd2c33df8ab803cf7c566fcbfa7f19cc99555a1efeac90bc07cb64be33d45e2d3f86f90aa2b6a725a9af2ea39f3a6a0fa