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Analysis
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max time kernel
261s -
max time network
177s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
02/01/2023, 22:17
Static task
static1
Behavioral task
behavioral1
Sample
3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe
Resource
win10-20220812-en
General
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Target
3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe
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Size
6.0MB
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MD5
42979249e85a0ef1f6c0e4e7a2ab8b13
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SHA1
65159abf134bc0578e6bee9efa67cef63fee6199
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SHA256
3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b
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SHA512
50ed8037ef3904833a323ed169cb269ef622e4209b2ccd2c34ea8f848c9ab53bbf01e26cba7839288225e0204df58b4e073aa13cfab74feb8206f64d18772bcf
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SSDEEP
98304:9+G5NKbORL0dqUFFKtm3AhVOyTUATEPhsCf0z1ZMdxE5ofgK/tSaZkLCGYVXVfp:AGiqRhpQAaC+xE5IH/LZuCnf
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1160 quickassist.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 1160 quickassist.exe 1160 quickassist.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1944 2960 WerFault.exe 65 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 352 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 1160 quickassist.exe 1160 quickassist.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2960 wrote to memory of 352 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 66 PID 2960 wrote to memory of 352 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 66 PID 2960 wrote to memory of 352 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 66 PID 2960 wrote to memory of 4988 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 68 PID 2960 wrote to memory of 4988 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 68 PID 2960 wrote to memory of 4988 2960 3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe 68
Processes
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C:\Users\Admin\AppData\Local\Temp\3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe"C:\Users\Admin\AppData\Local\Temp\3557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 5 /tn "Quick Assist{D4F4H6S2V5-J7A2D3F4-N5C3D5G4J7K7}" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\QuickAssist\quickassist.exe"2⤵
- Creates scheduled task(s)
PID:352
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C:\Windows\SysWOW64\schtasks.exe/C /Query /XML /TN "Quick Assist{D4F4H6S2V5-J7A2D3F4-N5C3D5G4J7K7}"2⤵PID:4988
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 5682⤵
- Program crash
PID:1944
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\QuickAssist\quickassist.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\QuickAssist\quickassist.exe1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1160
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
6.0MB
MD542979249e85a0ef1f6c0e4e7a2ab8b13
SHA165159abf134bc0578e6bee9efa67cef63fee6199
SHA2563557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b
SHA51250ed8037ef3904833a323ed169cb269ef622e4209b2ccd2c34ea8f848c9ab53bbf01e26cba7839288225e0204df58b4e073aa13cfab74feb8206f64d18772bcf
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Filesize
6.0MB
MD542979249e85a0ef1f6c0e4e7a2ab8b13
SHA165159abf134bc0578e6bee9efa67cef63fee6199
SHA2563557b40fe27beb221cbd1f1376a1fcf359775891ac3bf5d4d03ba45b7d16878b
SHA51250ed8037ef3904833a323ed169cb269ef622e4209b2ccd2c34ea8f848c9ab53bbf01e26cba7839288225e0204df58b4e073aa13cfab74feb8206f64d18772bcf