Analysis
-
max time kernel
142s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 18:25
Static task
static1
Behavioral task
behavioral1
Sample
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
General
-
Target
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe
-
Size
112KB
-
MD5
f22f7b06c0e9503578806e844b148138
-
SHA1
2ea8f5b40154cb24a8d48cf68ac4ca4f35d46a6f
-
SHA256
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6
-
SHA512
b0e9f6ab97ba768af834af017cb28ff614a23169726093e8c7df40faae217b3d27ce8dcf5cf9b791efa61d12e5f453bff402fe3d48e336ae6b3f2ad71fe528b7
-
SSDEEP
3072:pvDCGjODCKxSLKox1Xen3M0S58RXd8fAKE:ptjO+KxSzTu3lVeE
Malware Config
Signatures
-
Drops file in System32 directory 4 IoCs
Processes:
acldump.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 acldump.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE acldump.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies acldump.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 acldump.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:
acldump.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix acldump.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" acldump.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" acldump.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
acldump.exepid process 5096 acldump.exe 5096 acldump.exe 5096 acldump.exe 5096 acldump.exe 5096 acldump.exe 5096 acldump.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exepid process 4108 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exeacldump.exedescription pid process target process PID 4804 wrote to memory of 4108 4804 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 4804 wrote to memory of 4108 4804 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 4804 wrote to memory of 4108 4804 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe 5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe PID 3412 wrote to memory of 5096 3412 acldump.exe acldump.exe PID 3412 wrote to memory of 5096 3412 acldump.exe acldump.exe PID 3412 wrote to memory of 5096 3412 acldump.exe acldump.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe"C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Users\Admin\AppData\Local\Temp\5720b1a89c3f5066da0326e5a6b1cb2305dbaf96460fe827394670e7fa3ee8f6.exe--debacaf22⤵
- Suspicious behavior: RenamesItself
PID:4108
-
-
C:\Windows\SysWOW64\acldump.exe"C:\Windows\SysWOW64\acldump.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Windows\SysWOW64\acldump.exe--5be55b342⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:5096
-