Analysis
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max time kernel
151s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 13:36
Static task
static1
Behavioral task
behavioral1
Sample
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe
Resource
win10v2004-20220901-en
General
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Target
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe
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Size
246KB
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MD5
cda36a94f51833e7317ee93205fe74fb
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SHA1
eb66a32e2689cf03d3e565d32f72a3efd9788eee
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SHA256
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd
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SHA512
f25625b32d1d2d77f7559f9cab0557be0b73cec5c86f2330fecd35ddf0b8fec77936a98dabd2a9f7de0ebb1641f1fe01994eb918b822ee3167112a7209a0b462
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SSDEEP
3072:zB9DV0StxUeRviq5R8TyKkHZF+z0shPics1EdEvAVwf08LDK3hhBhZKj1QECB:b5VxUeZwiZ0z0sEQmAVk08Lqn2jSEc
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 1 IoCs
Processes:
explorer.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bcf8801.exe explorer.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
explorer.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\bcf880 = "C:\\bcf8801\\bcf8801.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*cf880 = "C:\\bcf8801\\bcf8801.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\bcf8801 = "C:\\Users\\Admin\\AppData\\Roaming\\bcf8801.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*cf8801 = "C:\\Users\\Admin\\AppData\\Roaming\\bcf8801.exe" explorer.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exedescription pid process target process PID 2020 set thread context of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 756 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exepid process 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exeexplorer.exepid process 2012 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 1692 explorer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 516 vssvc.exe Token: SeRestorePrivilege 516 vssvc.exe Token: SeAuditPrivilege 516 vssvc.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exeexplorer.exedescription pid process target process PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2020 wrote to memory of 2012 2020 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe PID 2012 wrote to memory of 1692 2012 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe explorer.exe PID 2012 wrote to memory of 1692 2012 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe explorer.exe PID 2012 wrote to memory of 1692 2012 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe explorer.exe PID 2012 wrote to memory of 1692 2012 97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe explorer.exe PID 1692 wrote to memory of 2004 1692 explorer.exe svchost.exe PID 1692 wrote to memory of 2004 1692 explorer.exe svchost.exe PID 1692 wrote to memory of 2004 1692 explorer.exe svchost.exe PID 1692 wrote to memory of 2004 1692 explorer.exe svchost.exe PID 1692 wrote to memory of 756 1692 explorer.exe vssadmin.exe PID 1692 wrote to memory of 756 1692 explorer.exe vssadmin.exe PID 1692 wrote to memory of 756 1692 explorer.exe vssadmin.exe PID 1692 wrote to memory of 756 1692 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe"C:\Users\Admin\AppData\Local\Temp\97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe"C:\Users\Admin\AppData\Local\Temp\97c7376e205f923ab3a6be4888f641cd9483a70138f6fe7b7ed969089b7dc3bd.exe"2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\syswow64\explorer.exe"C:\Windows\syswow64\explorer.exe"3⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\syswow64\svchost.exe-k netsvcs4⤵PID:2004
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C:\Windows\syswow64\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet4⤵
- Interacts with shadow copies
PID:756
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:516