Analysis
-
max time kernel
62s -
max time network
9s -
platform
windows7_x64 -
resource
win7v200722 -
submitted
09-10-2020 19:34
Static task
static1
Behavioral task
behavioral1
Sample
clop.bin.exe
Resource
win7v200722
Behavioral task
behavioral2
Sample
clop.bin.exe
Resource
win10v200722
General
-
Target
clop.bin.exe
-
Size
100KB
-
MD5
8752a7a052ba75239b86b0da1d483dd7
-
SHA1
6eeef883d209d02a05ae9e6a2f37c6cbf69f4d89
-
SHA256
3320f11728458d01eef62e10e48897ec1c2277c1fe1aa2d471a16b4dccfc1207
-
SHA512
57d19e9254ecaeaf301e11598c88b1440f3f85baf0cb8d7a0ac952cd6d63f565df9809b13f50a059302bfb0f81a5c498e49837e2e9480ec9b51c14a409fbdb65
Malware Config
Extracted
C:\ClopReadMe.txt
clop
Signatures
-
Clop
Ransomware discovered in early 2019 which has been actively developed since release.
-
Modifies extensions of user files 7 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
clop.bin.exedescription ioc process File created C:\Users\Admin\Pictures\UseRedo.tif.Clop clop.bin.exe File created C:\Users\Admin\Pictures\CompleteRedo.png.Clop clop.bin.exe File created C:\Users\Admin\Pictures\CompressNew.raw.Clop clop.bin.exe File created C:\Users\Admin\Pictures\DenyApprove.png.Clop clop.bin.exe File created C:\Users\Admin\Pictures\InstallUnblock.crw.Clop clop.bin.exe File created C:\Users\Admin\Pictures\SetResize.raw.Clop clop.bin.exe File created C:\Users\Admin\Pictures\UninstallConnect.tif.Clop clop.bin.exe -
Drops desktop.ini file(s) 25 IoCs
Processes:
clop.bin.exedescription ioc process File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Links\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Pictures\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Libraries\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Downloads\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Music\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini clop.bin.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-2090973689-680783404-4292415065-1000\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Documents\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Documents\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Videos\desktop.ini clop.bin.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Music\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Searches\desktop.ini clop.bin.exe File opened for modification C:\Users\Admin\Videos\desktop.ini clop.bin.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
clop.bin.exedescription ioc process File opened (read-only) \??\E: clop.bin.exe File opened (read-only) \??\H: clop.bin.exe File opened (read-only) \??\L: clop.bin.exe File opened (read-only) \??\T: clop.bin.exe File opened (read-only) \??\U: clop.bin.exe File opened (read-only) \??\X: clop.bin.exe File opened (read-only) \??\Z: clop.bin.exe File opened (read-only) \??\A: clop.bin.exe File opened (read-only) \??\K: clop.bin.exe File opened (read-only) \??\M: clop.bin.exe File opened (read-only) \??\O: clop.bin.exe File opened (read-only) \??\P: clop.bin.exe File opened (read-only) \??\Y: clop.bin.exe File opened (read-only) \??\B: clop.bin.exe File opened (read-only) \??\G: clop.bin.exe File opened (read-only) \??\I: clop.bin.exe File opened (read-only) \??\Q: clop.bin.exe File opened (read-only) \??\S: clop.bin.exe File opened (read-only) \??\V: clop.bin.exe File opened (read-only) \??\F: clop.bin.exe File opened (read-only) \??\J: clop.bin.exe File opened (read-only) \??\N: clop.bin.exe File opened (read-only) \??\R: clop.bin.exe File opened (read-only) \??\W: clop.bin.exe -
Drops file in Program Files directory 2 IoCs
Processes:
clop.bin.exedescription ioc process File opened for modification C:\Program Files\ClopReadMe.txt clop.bin.exe File opened for modification C:\Program Files (x86)\ClopReadMe.txt clop.bin.exe -
Drops file in Windows directory 1 IoCs
Processes:
clop.bin.exedescription ioc process File opened for modification C:\Windows\ClopReadMe.txt clop.bin.exe -
Suspicious behavior: EnumeratesProcesses 44 IoCs
Processes:
clop.bin.exepid process 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe 1108 clop.bin.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\clop.bin.exe"C:\Users\Admin\AppData\Local\Temp\clop.bin.exe"1⤵
- Modifies extensions of user files
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1108