Analysis
-
max time kernel
162s -
max time network
173s -
platform
windows10-2004_x64 -
resource
win10v2004-20220331-en -
submitted
27-03-2022 22:29
Behavioral task
behavioral1
Sample
0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe
Resource
win7-20220331-en
windows7_x64
0 signatures
0 seconds
General
-
Target
0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe
-
Size
233KB
-
MD5
8d99884c6799624b76cdac23665d77da
-
SHA1
4c7390e92cf68dd4b23c09cf033d5f59074605c0
-
SHA256
0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816
-
SHA512
cc7fdb0ae0143ca6054bbe17d010b1c7935da00e8d152d6cba93cf1dcc676f162eef02e3a0982b40d2c252639abbbe3011627f7c9deefe43a3d3f9ac6173f4fe
Malware Config
Signatures
-
Drops file in System32 directory 4 IoCs
Processes:
devenroll.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 devenroll.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE devenroll.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies devenroll.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 devenroll.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies data under HKEY_USERS 3 IoCs
Processes:
devenroll.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix devenroll.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" devenroll.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" devenroll.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
devenroll.exepid process 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe 3756 devenroll.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exepid process 3508 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exedevenroll.exedescription pid process target process PID 2072 wrote to memory of 3508 2072 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe PID 2072 wrote to memory of 3508 2072 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe PID 2072 wrote to memory of 3508 2072 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe 0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe PID 3368 wrote to memory of 3756 3368 devenroll.exe devenroll.exe PID 3368 wrote to memory of 3756 3368 devenroll.exe devenroll.exe PID 3368 wrote to memory of 3756 3368 devenroll.exe devenroll.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe"C:\Users\Admin\AppData\Local\Temp\0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\0ad8586ab4070d910a5a00ff103137535fced805c710e4c73d566d9320ad5816.exe--f1a0fefd2⤵
- Suspicious behavior: RenamesItself
-
C:\Windows\SysWOW64\devenroll.exe"C:\Windows\SysWOW64\devenroll.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\devenroll.exe--30d08c312⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/2072-124-0x0000000002170000-0x000000000218B000-memory.dmpFilesize
108KB
-
memory/2072-125-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
-
memory/3368-130-0x0000000000400000-0x000000000041D000-memory.dmpFilesize
116KB
-
memory/3508-126-0x0000000000000000-mapping.dmp
-
memory/3508-127-0x0000000000590000-0x00000000005AB000-memory.dmpFilesize
108KB
-
memory/3508-128-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
-
memory/3756-129-0x0000000000000000-mapping.dmp
-
memory/3756-131-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB