Analysis
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max time kernel
148s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
30/11/2022, 23:28
Behavioral task
behavioral1
Sample
ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe
Resource
win10v2004-20221111-en
General
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Target
ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe
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Size
21KB
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MD5
9c7b8090200d8e29026fb93b90054cb9
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SHA1
c8a2acacd5055989b7b384bcfa634ce6b1f8ba48
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SHA256
ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a
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SHA512
c51e76d1c9ee46ff058dd12c18719b58c8f747de50321b2643198d766c2a60b09ac1e407b21b8a150eaa00a161f5baaa2b9b2a838f8d10f4c53792d573a4e8c1
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SSDEEP
384:jIdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmi7gdWbjYIT8eC1nP7:jIsF8HdbKjV8BX7Vy6K7eIVTUdik68eQ
Malware Config
Signatures
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Detect XtremeRAT payload 5 IoCs
resource yara_rule behavioral1/memory/1348-55-0x0000000000C80000-0x0000000000C96000-memory.dmp family_xtremerat behavioral1/memory/2028-58-0x0000000000000000-mapping.dmp family_xtremerat behavioral1/memory/2028-61-0x0000000000C80000-0x0000000000C96000-memory.dmp family_xtremerat behavioral1/memory/1348-62-0x0000000000C80000-0x0000000000C96000-memory.dmp family_xtremerat behavioral1/memory/2028-63-0x0000000000C80000-0x0000000000C96000-memory.dmp family_xtremerat -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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Modifies Installed Components in the registry 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe -
resource yara_rule behavioral1/memory/1348-55-0x0000000000C80000-0x0000000000C96000-memory.dmp upx behavioral1/memory/2028-61-0x0000000000C80000-0x0000000000C96000-memory.dmp upx behavioral1/memory/1348-62-0x0000000000C80000-0x0000000000C96000-memory.dmp upx behavioral1/memory/2028-63-0x0000000000C80000-0x0000000000C96000-memory.dmp upx -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\InstallDir\Server.exe ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe File created C:\Windows\InstallDir\Server.exe ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2028 explorer.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1348 wrote to memory of 2044 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 27 PID 1348 wrote to memory of 2044 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 27 PID 1348 wrote to memory of 2044 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 27 PID 1348 wrote to memory of 2044 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 27 PID 1348 wrote to memory of 2028 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 28 PID 1348 wrote to memory of 2028 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 28 PID 1348 wrote to memory of 2028 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 28 PID 1348 wrote to memory of 2028 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 28 PID 1348 wrote to memory of 2028 1348 ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe"C:\Users\Admin\AppData\Local\Temp\ea42e7e7dd921ffa74ddd9bbbc3427bd2b461133c27f04a67ad54a976f53b77a.exe"1⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1348 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"2⤵PID:2044
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C:\Windows\SysWOW64\explorer.exeexplorer.exe2⤵
- Suspicious use of SetWindowsHookEx
PID:2028
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