Analysis
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max time kernel
193s -
max time network
203s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 15:00
Static task
static1
Behavioral task
behavioral1
Sample
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe
Resource
win10v2004-20220812-en
General
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Target
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe
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Size
232KB
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MD5
80a735b520d4f75a4cb7ac829de99ab4
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SHA1
e7a0e483d97424c6cf75d402325cd31eef730bfa
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SHA256
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0
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SHA512
b670bff8a2905d5914282af76b3cefb8216085420cd8141f923487eda54376640adde2c9137c8daffaec88c4ee43e7d90fa2842c0b404c0ae2ed0d457cc8eed8
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SSDEEP
6144:yAsBZ1Z69879Fm9PmqZIccYyhbPaHVzc+A:aZ6O79aJuPOa+A
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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Loads dropped DLL 4 IoCs
Processes:
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exepid process 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\asogadax = "\"C:\\Windows\\jcuwugoc.exe\"" explorer.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exedescription pid process target process PID 1628 set thread context of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 2292 set thread context of 1480 2292 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe explorer.exe -
Drops file in Windows directory 2 IoCs
Processes:
explorer.exedescription ioc process File created C:\Windows\jcuwugoc.exe explorer.exe File opened for modification C:\Windows\jcuwugoc.exe explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 2648 vssadmin.exe -
Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\PhishingFilter explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" explorer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 2032 vssvc.exe Token: SeRestorePrivilege 2032 vssvc.exe Token: SeAuditPrivilege 2032 vssvc.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exeexplorer.exedescription pid process target process PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 1628 wrote to memory of 2292 1628 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe PID 2292 wrote to memory of 1480 2292 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe explorer.exe PID 2292 wrote to memory of 1480 2292 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe explorer.exe PID 2292 wrote to memory of 1480 2292 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe explorer.exe PID 2292 wrote to memory of 1480 2292 3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe explorer.exe PID 1480 wrote to memory of 2648 1480 explorer.exe vssadmin.exe PID 1480 wrote to memory of 2648 1480 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe"C:\Users\Admin\AppData\Local\Temp\3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1628 -
C:\Users\Admin\AppData\Local\Temp\3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe"C:\Users\Admin\AppData\Local\Temp\3a738402946b1c5810e2d3e6bd02eb440a17930a3123740fb48a1e21b4064cb0.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Windows\SYSTEM32\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet4⤵
- Interacts with shadow copies
PID:2648
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2032
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\ProgramData\utoligapetoqemaz\01000000Filesize
232KB
MD581a835a7894a0d99ffc1d63e04c23ba0
SHA10468104e782e31a1ed926f79d462961f5f11037f
SHA2561b17716660f7f6456716404356f98caf183aa4f7915a501d19febb67a93f261c
SHA51200e2ea758b860eb41c5e650b605e5bf201a1e9d3f2c11480676652479798e97c6f0b664610c50abecd4825f7cfc76807cc3a550ea3bfa2fac18a69895a73b40e
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C:\Users\Admin\AppData\Local\Temp\nse4548.tmp\UserInfo.dllFilesize
4KB
MD5d9a3fc12d56726dde60c1ead1df366f7
SHA1f531768159c14f07ac896437445652b33750a237
SHA256401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a
SHA5126b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51
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C:\Users\Admin\AppData\Local\Temp\nse4548.tmp\UserInfo.dllFilesize
4KB
MD5d9a3fc12d56726dde60c1ead1df366f7
SHA1f531768159c14f07ac896437445652b33750a237
SHA256401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a
SHA5126b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51
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C:\Users\Admin\AppData\Local\Temp\nse4548.tmp\UserInfo.dllFilesize
4KB
MD5d9a3fc12d56726dde60c1ead1df366f7
SHA1f531768159c14f07ac896437445652b33750a237
SHA256401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a
SHA5126b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51
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C:\Users\Admin\AppData\Local\Temp\nse4548.tmp\dustbin.dllFilesize
68KB
MD5f1fdb2132eddba792e7035c5f60580fd
SHA1cd1e9cc9dcd12a79b8441d22b527cc39b28c0d4e
SHA256878ea307e4e003a6b8966917890a75a6ede9140146e328fc9b9256c0b2ec5712
SHA5120eef828e171f479fe7b20eda5b49d720c57992878916fc421809bc820e623486fe86dfc51e65bcb6104c4c3144527fb40fbc36fc662fee72cd1b58b814e84b54
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memory/1480-142-0x0000000000000000-mapping.dmp
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memory/1480-149-0x0000000000CD0000-0x0000000000D0C000-memory.dmpFilesize
240KB
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memory/1480-147-0x0000000000CD0000-0x0000000000D0C000-memory.dmpFilesize
240KB
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memory/1480-143-0x0000000000CD0000-0x0000000000D0C000-memory.dmpFilesize
240KB
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memory/2292-141-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2292-140-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2292-139-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2292-146-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2292-137-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/2292-136-0x0000000000000000-mapping.dmp
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memory/2648-148-0x0000000000000000-mapping.dmp