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Analysis
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max time kernel
186s -
max time network
231s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2022, 22:42
Static task
static1
Behavioral task
behavioral1
Sample
d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe
Resource
win10v2004-20221111-en
General
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Target
d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe
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Size
283KB
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MD5
8cb8710b7da5abf186990b0d20f9204a
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SHA1
361b362e201021c61c145f3ceee972b99217d135
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SHA256
d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b
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SHA512
76878d3447124456605a505de02d97710ac1c236b76bab7e1ab4ab70ffeceac6a3d466a562558f12762fe777147134c27589466e20f922cb2818dbd1bfb1a2f3
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SSDEEP
6144:3VuZKWcJp2gPf6CHcy2xU2/F6iadu6qSN44h+bXge5UX+JbAgS:wZup2gPyCbCy3rjN9+se5U
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce WScript.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Software Utilizer = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Utilizer.exe" WScript.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe File opened for modification C:\Windows\assembly\Desktop.ini d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 316 set thread context of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe File opened for modification C:\Windows\assembly\Desktop.ini d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe File opened for modification C:\Windows\assembly d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3524 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe Token: SeDebugPrivilege 3524 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3524 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 316 wrote to memory of 3624 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 84 PID 316 wrote to memory of 3624 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 84 PID 316 wrote to memory of 3624 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 84 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 316 wrote to memory of 3524 316 d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe 85 PID 4740 wrote to memory of 4640 4740 explorer.exe 87 PID 4740 wrote to memory of 4640 4740 explorer.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe"C:\Users\Admin\AppData\Local\Temp\d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" C:\Users\Admin\AppData\Roaming\MPXMV.vbs2⤵PID:3624
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C:\Users\Admin\AppData\Local\Temp\d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe"C:\Users\Admin\AppData\Local\Temp\d66f3d576d216843aa4a2aef507b16806ea325282ae0757c95d3d0ca51ad599b.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3524
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\MPXMV.vbs"2⤵
- Adds Run key to start application
PID:4640
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
601B
MD56026c5831b249215091f76faa06b01c2
SHA172ea0a0e03b1272691595cad9b005884c0b2e67d
SHA256acebaefb5eac358e537b6d19d7f2baf138a598bd6a6fcb5827c9e41c47fd01f6
SHA512e8f676d1e26072fa9d50a42549248e4e52ad418ecf2fac9e19f1fee2e7f622c0d6a97997c86194404cf4cf5730894dc1bdb38f78328b5b1ccdda24f2174dc8c9