Analysis
-
max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
21-05-2021 15:35
Static task
static1
Behavioral task
behavioral1
Sample
ID99827299202.js
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
-
Target
ID99827299202.js
-
Size
29KB
-
MD5
da2054c4d6c5a5051a82ef276afb3342
-
SHA1
924772e4c5112c6463bf986377c17b1e6e529642
-
SHA256
8e5146485d183e60079662c903e943a3deaa854d2de07b764811385748381c46
-
SHA512
f72c09c604319f97217355469718e544574cb4c4958736e151b72e97a6b4b484096f314c0249476b8c3fd5aa014fbe057e52628672439495d88b7a48f45c9899
Malware Config
Signatures
-
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 7 900 powershell.exe -
Drops startup file 2 IoCs
Processes:
wscript.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsSystemUpdate.js wscript.exe File created 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 900 powershell.exe 900 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 900 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
wscript.exedescription pid process target process PID 1756 wrote to memory of 900 1756 wscript.exe powershell.exe PID 1756 wrote to memory of 900 1756 wscript.exe powershell.exe PID 1756 wrote to memory of 900 1756 wscript.exe powershell.exe
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\ID99827299202.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 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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/900-59-0x0000000000000000-mapping.dmp
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memory/900-60-0x000007FEFBD21000-0x000007FEFBD23000-memory.dmpFilesize
8KB
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memory/900-61-0x00000000023E0000-0x00000000023E1000-memory.dmpFilesize
4KB
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memory/900-62-0x000000001ACE0000-0x000000001ACE1000-memory.dmpFilesize
4KB
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memory/900-64-0x000000001AC60000-0x000000001AC62000-memory.dmpFilesize
8KB
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memory/900-63-0x0000000002520000-0x0000000002521000-memory.dmpFilesize
4KB
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memory/900-65-0x000000001AC64000-0x000000001AC66000-memory.dmpFilesize
8KB
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memory/900-66-0x0000000002550000-0x0000000002551000-memory.dmpFilesize
4KB
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memory/900-67-0x000000001AB80000-0x000000001AB81000-memory.dmpFilesize
4KB
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memory/900-68-0x000000001C570000-0x000000001C571000-memory.dmpFilesize
4KB