Analysis
-
max time kernel
145s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 14:25
Static task
static1
Behavioral task
behavioral1
Sample
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe
Resource
win10v2004-20220414-en
General
-
Target
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe
-
Size
1.7MB
-
MD5
fde7ae84cb218ddabbfbbffeac0cce14
-
SHA1
251f033a47407fac551802866b8a2c829ed7b9c1
-
SHA256
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367
-
SHA512
64fbd447595176955733a740df01deb45898123c50524146b869793bb358f17eeaba43d2182f5c16fb6cdd2e2848f30b8883ff7fda4348d047d5e8e0f3cdc730
Malware Config
Signatures
-
Looks for VirtualBox Guest Additions in registry 2 TTPs
-
Executes dropped EXE 1 IoCs
Processes:
wYWRnZ2dn.exepid process 948 wYWRnZ2dn.exe -
Looks for VMWare Tools registry key 2 TTPs
-
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
wYWRnZ2dn.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion wYWRnZ2dn.exe -
Loads dropped DLL 1 IoCs
Processes:
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exepid process 1064 cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
wYWRnZ2dn.exedescription ioc process File opened (read-only) \??\F: wYWRnZ2dn.exe File opened (read-only) \??\H: wYWRnZ2dn.exe File opened (read-only) \??\I: wYWRnZ2dn.exe File opened (read-only) \??\K: wYWRnZ2dn.exe File opened (read-only) \??\L: wYWRnZ2dn.exe File opened (read-only) \??\Q: wYWRnZ2dn.exe File opened (read-only) \??\V: wYWRnZ2dn.exe File opened (read-only) \??\E: wYWRnZ2dn.exe File opened (read-only) \??\T: wYWRnZ2dn.exe File opened (read-only) \??\W: wYWRnZ2dn.exe File opened (read-only) \??\B: wYWRnZ2dn.exe File opened (read-only) \??\N: wYWRnZ2dn.exe File opened (read-only) \??\P: wYWRnZ2dn.exe File opened (read-only) \??\S: wYWRnZ2dn.exe File opened (read-only) \??\X: wYWRnZ2dn.exe File opened (read-only) \??\Y: wYWRnZ2dn.exe File opened (read-only) \??\M: wYWRnZ2dn.exe File opened (read-only) \??\G: wYWRnZ2dn.exe File opened (read-only) \??\J: wYWRnZ2dn.exe File opened (read-only) \??\O: wYWRnZ2dn.exe File opened (read-only) \??\R: wYWRnZ2dn.exe File opened (read-only) \??\U: wYWRnZ2dn.exe File opened (read-only) \??\Z: wYWRnZ2dn.exe File opened (read-only) \??\A: wYWRnZ2dn.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
wYWRnZ2dn.exedescription ioc process File opened for modification \??\PhysicalDrive0 wYWRnZ2dn.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
wYWRnZ2dn.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 wYWRnZ2dn.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString wYWRnZ2dn.exe -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
wYWRnZ2dn.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct wYWRnZ2dn.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS\ wYWRnZ2dn.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardManufacturer wYWRnZ2dn.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
wYWRnZ2dn.exepid process 948 wYWRnZ2dn.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
wYWRnZ2dn.exepid process 948 wYWRnZ2dn.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exedescription pid process target process PID 1064 wrote to memory of 948 1064 cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe wYWRnZ2dn.exe PID 1064 wrote to memory of 948 1064 cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe wYWRnZ2dn.exe PID 1064 wrote to memory of 948 1064 cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe wYWRnZ2dn.exe PID 1064 wrote to memory of 948 1064 cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe wYWRnZ2dn.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe"C:\Users\Admin\AppData\Local\Temp\cfee2d1e4e8cac29ba1304e2c6639b7bdf8dc5a111f5a6cfc94981c89060d367.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYWRnZ2dn.exe"C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYWRnZ2dn.exe" TEw9aHR0cDovL21maWxlLnNpdGUvZC8qTk49dGhlLXNpbXMtNC1kZWx1eGUtZWRpdGlvbi50b3JyZW50KkZGPTEzMjMxKkFQST0qU0laRT0xMjMwMzQqTVU9aHR0cDovL21kaXMuZnVuL2wvKlNVPU15RGlzay5wcm8q2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\MyDiskPro\wYWRnZ2dn.exeFilesize
1.4MB
MD59a0541ea8737a6eb833b4d7f2a6ed633
SHA1d7cf0332a3a4ee116b070061f4cc76141734a422
SHA256a3176f27d1eb90ed92360db780cc33ef09040cf29b74fd974966948255ad83da
SHA512461d7b48b187e8a0be8465d1592d9d3c6bb0b08b146eefa188082bbdb511d88c07cc013df45eee9bee1e1fbfe1d1d953401fe398269367be7a5296c530eac01a
-
\Users\Admin\AppData\Local\Temp\MyDiskPro\wYWRnZ2dn.exeFilesize
1.4MB
MD59a0541ea8737a6eb833b4d7f2a6ed633
SHA1d7cf0332a3a4ee116b070061f4cc76141734a422
SHA256a3176f27d1eb90ed92360db780cc33ef09040cf29b74fd974966948255ad83da
SHA512461d7b48b187e8a0be8465d1592d9d3c6bb0b08b146eefa188082bbdb511d88c07cc013df45eee9bee1e1fbfe1d1d953401fe398269367be7a5296c530eac01a
-
memory/948-56-0x0000000000000000-mapping.dmp
-
memory/948-61-0x0000000000230000-0x0000000000233000-memory.dmpFilesize
12KB
-
memory/948-62-0x0000000000400000-0x000000000092C000-memory.dmpFilesize
5.2MB
-
memory/1064-54-0x00000000769D1000-0x00000000769D3000-memory.dmpFilesize
8KB
-
memory/1064-58-0x0000000000400000-0x0000000000684000-memory.dmpFilesize
2.5MB
-
memory/1064-60-0x00000000003D0000-0x00000000003D3000-memory.dmpFilesize
12KB