Analysis
-
max time kernel
272s -
max time network
300s -
platform
windows10-1703_x64 -
resource
win10-20231215-en -
resource tags
arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system -
submitted
01-02-2024 04:47
Static task
static1
Behavioral task
behavioral1
Sample
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe
Resource
win10-20231215-en
General
-
Target
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe
-
Size
3.9MB
-
MD5
6981e1fe652aea8534bc86365b2c1eea
-
SHA1
4df342b95bff205f57bcf1b1740f26eaee1eac75
-
SHA256
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c
-
SHA512
b72a326df5848b4b95bc8bb9ca3970fb06de4bc1217f25e3c6d70e05c9d81cbba23298599b665f7c927498fba17cc57ecca99d71e354279f006c69fbd297be13
-
SSDEEP
98304:mkvX9nnZHBwv59qYyHGqG1A6yPLD2LpvmB2jHNlRN+yFPEJbq:mkvX9nZHBwv59qOKD2dOcjHNlRau
Malware Config
Signatures
-
Detects Arechclient2 RAT 1 IoCs
Arechclient2.
Processes:
resource yara_rule behavioral2/memory/4280-19-0x0000000000400000-0x00000000004D4000-memory.dmp MALWARE_Win_Arechclient -
SectopRAT payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4280-19-0x0000000000400000-0x00000000004D4000-memory.dmp family_sectoprat behavioral2/memory/3508-20-0x0000000006120000-0x0000000006220000-memory.dmp family_sectoprat behavioral2/memory/3508-18-0x0000000006120000-0x0000000006220000-memory.dmp family_sectoprat -
Loads dropped DLL 1 IoCs
Processes:
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exepid process 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
powershell.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1968775928-2924269989-3510977013-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dynamics_in_sales_figures_in_the_report = "C:\\Users\\Admin\\AppData\\Local\\Dynamics_in_sales_figures_in_the_report\\Dynamics_in_sales_figures_in_the_report.exe" powershell.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exedescription pid process target process PID 3508 set thread context of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepid process 1344 powershell.exe 1344 powershell.exe 1344 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
InstallUtil.exepowershell.exedescription pid process Token: SeDebugPrivilege 4280 InstallUtil.exe Token: SeDebugPrivilege 1344 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exedescription pid process target process PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 4280 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe InstallUtil.exe PID 3508 wrote to memory of 1344 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe powershell.exe PID 3508 wrote to memory of 1344 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe powershell.exe PID 3508 wrote to memory of 1344 3508 1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe powershell.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe"C:\Users\Admin\AppData\Local\Temp\1f8dec69b76f70a555ed82874354b58e662a6fc382b45784e2cae8ae2978398c.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3508 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4280
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" Remove -ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Dynamics_in_sales_figures_in_the_report';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'Dynamics_in_sales_figures_in_the_report' -Value '"C:\Users\Admin\AppData\Local\Dynamics_in_sales_figures_in_the_report\Dynamics_in_sales_figures_in_the_report.exe"' -PropertyType 'String'2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1344
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
-
Filesize
583KB
MD56e67e80ef1b5807920c3f08d853f8dec
SHA100519629523d3b92db113799c7fcba1a39e8ea56
SHA256d391675ac92420fbaf9f2ec39118d1d0fc112041cb04d78e95adc7b1a0dad150
SHA512e6e8534a09cc070156dda4b4ed32a52ffbb43c9b231cd9e766558bab986b9d2dd96741260c61a4b1c6bffb3813e92dbeec19b1935612e4be22195ff56977292a