Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220331-en -
submitted
12-04-2022 20:02
Static task
static1
Behavioral task
behavioral1
Sample
gunzipped.exe
Resource
win7-20220331-en
Behavioral task
behavioral2
Sample
gunzipped.exe
Resource
win10v2004-20220331-en
General
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Target
gunzipped.exe
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Size
672KB
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MD5
f6791118160f20fdabe7551a92d2273c
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SHA1
ca101b92d768d4884c9de4563921b0f4d9543b62
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SHA256
79d55a99ff2f41da092fba879ab1858a9f68619c50eb9b65eebb1b45a500e3bb
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SHA512
ef350f7289c086647860bf5ef226691b9d1500d3bd962dfa8aa5c391a10fd98e636f7a4fa15352471fcd5878f813efd50b479a58c584da4464cfb57f54a97773
Malware Config
Signatures
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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\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.exe" iexplore.exe -
Processes:
gunzipped.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" gunzipped.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
iexplore.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts iexplore.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-1082102374-1487407228-1886994731-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.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\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6.exe" iexplore.exe -
Processes:
gunzipped.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" gunzipped.exe -
Program crash 4 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 2900 4976 WerFault.exe iexplore.exe 4768 2216 WerFault.exe iexplore.exe 2248 1264 WerFault.exe iexplore.exe 4404 5068 WerFault.exe iexplore.exe -
Suspicious use of SetThreadContext 11 IoCs
Processes:
gunzipped.exegunzipped.exeiexplore.exedescription pid process target process PID 3628 set thread context of 2080 3628 gunzipped.exe gunzipped.exe PID 2080 set thread context of 4092 2080 gunzipped.exe iexplore.exe PID 4092 set thread context of 4232 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 4976 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 2216 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 4820 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 744 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 1264 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 4572 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 5068 4092 iexplore.exe iexplore.exe PID 4092 set thread context of 1600 4092 iexplore.exe iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
gunzipped.exeiexplore.exeiexplore.exepid process 2080 gunzipped.exe 2080 gunzipped.exe 2080 gunzipped.exe 2080 gunzipped.exe 4232 iexplore.exe 4232 iexplore.exe 744 iexplore.exe 744 iexplore.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
iexplore.exeiexplore.exedescription pid process Token: SeDebugPrivilege 4092 iexplore.exe Token: SeDebugPrivilege 4232 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
gunzipped.exeiexplore.exepid process 2080 gunzipped.exe 4092 iexplore.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
gunzipped.exegunzipped.exeiexplore.exedescription pid process target process PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 3628 wrote to memory of 2080 3628 gunzipped.exe gunzipped.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 2080 wrote to memory of 4092 2080 gunzipped.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4232 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4976 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 2216 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 4820 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 744 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 1264 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 1264 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 1264 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 1264 4092 iexplore.exe iexplore.exe PID 4092 wrote to memory of 1264 4092 iexplore.exe iexplore.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
gunzipped.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" gunzipped.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"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:2080 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\gunzipped.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:4092 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn0.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4232 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn1.txt"4⤵PID:4976
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 845⤵
- Program crash
PID:2900 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn1.txt"4⤵PID:2216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 845⤵
- Program crash
PID:4768 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn1.txt"4⤵
- Accesses Microsoft Outlook accounts
PID:4820 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn2.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:744 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn3.txt"4⤵PID:1264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 845⤵
- Program crash
PID:2248 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn3.txt"4⤵PID:4572
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn4.txt"4⤵PID:5068
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5068 -s 845⤵
- Program crash
PID:4404 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn4.txt"4⤵PID:1600
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4976 -ip 49761⤵PID:1716
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2216 -ip 22161⤵PID:3112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1264 -ip 12641⤵PID:3220
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 5068 -ip 50681⤵PID:4616
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn2.txtFilesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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C:\Users\Admin\AppData\Roaming\Q4V8N5Y3-O0F7-P7T5-U113-K7R6L4T0H6H6\oigbpewbn4.txtFilesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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memory/2080-130-0x0000000000000000-mapping.dmp
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memory/2080-131-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2080-133-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/3628-124-0x0000000000C40000-0x0000000000CEE000-memory.dmpFilesize
696KB
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memory/3628-125-0x0000000005D00000-0x00000000062A4000-memory.dmpFilesize
5.6MB
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memory/3628-126-0x0000000005750000-0x00000000057E2000-memory.dmpFilesize
584KB
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memory/3628-127-0x0000000005840000-0x000000000584A000-memory.dmpFilesize
40KB
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memory/3628-128-0x0000000007850000-0x00000000078EC000-memory.dmpFilesize
624KB
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memory/3628-129-0x0000000007E90000-0x0000000007EF6000-memory.dmpFilesize
408KB