Analysis
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max time kernel
140s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-09-2022 06:51
Static task
static1
Behavioral task
behavioral1
Sample
bjZB.exe
Resource
win7-20220812-en
windows7-x64
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
bjZB.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
15 signatures
150 seconds
General
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Target
bjZB.exe
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Size
1.4MB
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MD5
ee79da4d89dff4f76a822bb60e3a4d05
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SHA1
830160df0323cbb49bb2fc17ada3a244fcf632d4
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SHA256
baa66f0786ba08ec0dc82d145bce5bc43e31a8beddd34b6cad96b24c9adb1c5f
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SHA512
3a6069d6754a04d4514d22a2563af04b5acdcef0a08f3a2e58e412aaa651155d4b0efe0a36edf520e9c6dcb05e80650d50e6e55192d4a87610f5e1f91d16442f
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SSDEEP
24576:10LOa5+siQP+CfZ5Az6aFwgR64Bs/TrIyAPm:19TQPlh5AXR64m7cy
Score
10/10
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" bjZB.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" bjZB.exe -
Adds policy Run key to start application 2 TTPs 2 IoCs
description 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\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3 = "C:\\Users\\Admin\\AppData\\Roaming\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3.exe" iexplore.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" bjZB.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts iexplore.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3 = "C:\\Users\\Admin\\AppData\\Roaming\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3.exe" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3 = "C:\\Users\\Admin\\AppData\\Roaming\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" bjZB.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 2568 3760 WerFault.exe 94 3128 1936 WerFault.exe 99 -
Suspicious use of SetThreadContext 9 IoCs
description pid Process procid_target PID 3744 set thread context of 4844 3744 bjZB.exe 92 PID 4844 set thread context of 1388 4844 bjZB.exe 93 PID 1388 set thread context of 3760 1388 iexplore.exe 94 PID 1388 set thread context of 1564 1388 iexplore.exe 98 PID 1388 set thread context of 1936 1388 iexplore.exe 99 PID 1388 set thread context of 1464 1388 iexplore.exe 102 PID 1388 set thread context of 2092 1388 iexplore.exe 103 PID 1388 set thread context of 4776 1388 iexplore.exe 104 PID 1388 set thread context of 2832 1388 iexplore.exe 105 -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4844 bjZB.exe 4844 bjZB.exe 4844 bjZB.exe 4844 bjZB.exe 1564 iexplore.exe 1564 iexplore.exe 2092 iexplore.exe 2092 iexplore.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1388 iexplore.exe Token: SeDebugPrivilege 1564 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3744 bjZB.exe 3744 bjZB.exe 4844 bjZB.exe 1388 iexplore.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 3744 wrote to memory of 4844 3744 bjZB.exe 92 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 4844 wrote to memory of 1388 4844 bjZB.exe 93 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 3760 1388 iexplore.exe 94 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1564 1388 iexplore.exe 98 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1936 1388 iexplore.exe 99 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 1464 1388 iexplore.exe 102 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 2092 1388 iexplore.exe 103 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 PID 1388 wrote to memory of 4776 1388 iexplore.exe 104 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" bjZB.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bjZB.exe"C:\Users\Admin\AppData\Local\Temp\bjZB.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3744 -
C:\Users\Admin\AppData\Local\Temp\bjZB.exe"C:\Users\Admin\AppData\Local\Temp\bjZB.exe"2⤵
- UAC bypass
- Windows security bypass
- 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:4844 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\bjZB.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:1388 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac0.txt"4⤵PID:3760
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 845⤵
- Program crash
PID:2568
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac0.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1564
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac1.txt"4⤵PID:1936
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 845⤵
- Program crash
PID:3128
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac1.txt"4⤵
- Accesses Microsoft Outlook accounts
PID:1464
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac2.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2092
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac3.txt"4⤵PID:4776
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C:\Program Files (x86)\Internet Explorer\iexplore.exe/stext "C:\Users\Admin\AppData\Roaming\V1B5T2F0-T6S4-E5P1-P7G0-X443Q1A6T3M3\qbfttzuac4.txt"4⤵PID:2832
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3760 -ip 37601⤵PID:1020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1936 -ip 19361⤵PID:3868
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84