Analysis
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max time kernel
48s -
max time network
146s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
09-07-2021 20:45
Static task
static1
Behavioral task
behavioral1
Sample
svchost.exe
Resource
win7v20210410
General
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Target
svchost.exe
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Size
776KB
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MD5
414ad28c17f6b49a2f825ffc49dbae02
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SHA1
43a194b57fbaab18ee206adb1d16690c887f0734
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SHA256
6b22261ef9a97fde0923ffe05c7aa8317fd3b0e27c10fbc967f9961a5f39c105
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SHA512
dde4855ebd23feb43c60e7dad21883867d97abe481dae2086933fc9f270d69a1ffe7506ba4e9b3c1a9ab93630fa6c9224a1d1918d8c6d77c47c4aad56823ffff
Malware Config
Extracted
xpertrat
3.1.9
BXK
ioxg.ix.tc:4000
R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6
Signatures
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XpertRAT Core Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/1244-131-0x0000000000400000-0x0000000000444000-memory.dmp xpertrat behavioral2/memory/1244-132-0x0000000000401364-mapping.dmp xpertrat -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/672-143-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/672-144-0x0000000000411654-mapping.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/2216-149-0x0000000000400000-0x0000000000459000-memory.dmp WebBrowserPassView behavioral2/memory/2216-150-0x0000000000442F04-mapping.dmp WebBrowserPassView -
Nirsoft 6 IoCs
Processes:
resource yara_rule behavioral2/memory/672-143-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/672-144-0x0000000000411654-mapping.dmp Nirsoft behavioral2/memory/2216-149-0x0000000000400000-0x0000000000459000-memory.dmp Nirsoft behavioral2/memory/2216-150-0x0000000000442F04-mapping.dmp Nirsoft behavioral2/memory/3928-158-0x0000000000400000-0x0000000000415000-memory.dmp Nirsoft behavioral2/memory/3928-159-0x000000000040C2A8-mapping.dmp Nirsoft -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6 = "C:\\Users\\Admin\\AppData\\Roaming\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6.exe" iexplore.exe -
Processes:
resource yara_rule behavioral2/memory/4012-139-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/1644-154-0x0000000000400000-0x0000000000416000-memory.dmp upx -
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" svchost.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6 = "C:\\Users\\Admin\\AppData\\Roaming\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6 = "C:\\Users\\Admin\\AppData\\Roaming\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6.exe" iexplore.exe -
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3452 1336 WerFault.exe iexplore.exe 2976 1888 WerFault.exe iexplore.exe -
Suspicious use of SetThreadContext 9 IoCs
Processes:
svchost.exesvchost.exeiexplore.exedescription pid process target process PID 628 set thread context of 2664 628 svchost.exe svchost.exe PID 2664 set thread context of 1336 2664 svchost.exe iexplore.exe PID 2664 set thread context of 1244 2664 svchost.exe iexplore.exe PID 1244 set thread context of 4012 1244 iexplore.exe iexplore.exe PID 1244 set thread context of 672 1244 iexplore.exe iexplore.exe PID 1244 set thread context of 1888 1244 iexplore.exe iexplore.exe PID 1244 set thread context of 2216 1244 iexplore.exe iexplore.exe PID 1244 set thread context of 1644 1244 iexplore.exe iexplore.exe PID 1244 set thread context of 3928 1244 iexplore.exe iexplore.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
svchost.exeiexplore.exeiexplore.exepid process 2664 svchost.exe 2664 svchost.exe 2664 svchost.exe 2664 svchost.exe 4012 iexplore.exe 4012 iexplore.exe 2664 svchost.exe 2664 svchost.exe 2216 iexplore.exe 2216 iexplore.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
iexplore.exeiexplore.exedescription pid process Token: SeDebugPrivilege 1244 iexplore.exe Token: SeDebugPrivilege 4012 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
svchost.exeiexplore.exepid process 2664 svchost.exe 1244 iexplore.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
svchost.exesvchost.exeiexplore.exedescription pid process target process PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 628 wrote to memory of 2664 628 svchost.exe svchost.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1336 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 2664 wrote to memory of 1244 2664 svchost.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 4012 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 672 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1888 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 2216 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe PID 1244 wrote to memory of 1644 1244 iexplore.exe iexplore.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:628 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"{path}"2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2664 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\svchost.exe3⤵PID:1336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1336 -s 964⤵
- Program crash
PID:3452 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\svchost.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1244 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai0.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4012 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai1.txt"4⤵PID:672
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai2.txt"4⤵PID:1888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 925⤵
- Program crash
PID:2976 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai2.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2216 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai3.txt"4⤵PID:1644
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai4.txt"4⤵PID:3928
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai2.txtMD5
f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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C:\Users\Admin\AppData\Roaming\R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6\excztyxai4.txtMD5
f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/628-118-0x0000000005200000-0x00000000056FE000-memory.dmpFilesize
5.0MB
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memory/628-114-0x0000000000150000-0x0000000000151000-memory.dmpFilesize
4KB
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memory/628-119-0x0000000004F70000-0x0000000004F71000-memory.dmpFilesize
4KB
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memory/628-120-0x00000000087B0000-0x00000000087B1000-memory.dmpFilesize
4KB
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memory/628-121-0x0000000005090000-0x0000000005092000-memory.dmpFilesize
8KB
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memory/628-122-0x0000000008B50000-0x0000000008BF8000-memory.dmpFilesize
672KB
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memory/628-123-0x000000000B320000-0x000000000B37A000-memory.dmpFilesize
360KB
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memory/628-117-0x0000000004F80000-0x0000000004F81000-memory.dmpFilesize
4KB
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memory/628-116-0x0000000005700000-0x0000000005701000-memory.dmpFilesize
4KB
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memory/672-144-0x0000000000411654-mapping.dmp
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memory/672-143-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1244-132-0x0000000000401364-mapping.dmp
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memory/1244-135-0x0000000003760000-0x00000000038B3000-memory.dmpFilesize
1.3MB
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memory/1244-136-0x0000000003761000-0x000000000385D000-memory.dmpFilesize
1008KB
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memory/1244-131-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/1336-130-0x0000000000401364-mapping.dmp
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memory/1644-154-0x0000000000400000-0x0000000000416000-memory.dmpFilesize
88KB
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memory/1644-155-0x0000000000413750-mapping.dmp
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memory/1888-148-0x0000000000442F04-mapping.dmp
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memory/2216-149-0x0000000000400000-0x0000000000459000-memory.dmpFilesize
356KB
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memory/2216-150-0x0000000000442F04-mapping.dmp
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memory/2664-128-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2664-125-0x00000000004010B8-mapping.dmp
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memory/2664-124-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/3928-158-0x0000000000400000-0x0000000000415000-memory.dmpFilesize
84KB
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memory/3928-159-0x000000000040C2A8-mapping.dmp
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memory/4012-140-0x0000000000423BC0-mapping.dmp
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memory/4012-139-0x0000000000400000-0x0000000000426000-memory.dmpFilesize
152KB