Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
18/03/2024, 16:29
General
- Target d3fa6fcc3a459eecd5f814bd57b697ae.dll
- Size 1004KB
- Sample240318-ty9jtsdf6z
- SHA256 39c60c6c9f0757516684c5667be66d03e241ac56e792e570398e91781a85865e
Malware Config
Signatures
- Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
- Dridex Shellcode 1 IoCs
Detects Dridex Payload shellcode injected in Explorer process.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 4 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 12 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\d3fa6fcc3a459eecd5f814bd57b697ae.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\DisplaySwitch.exeC:\Windows\system32\DisplaySwitch.exe1⤵
-
C:\Users\Admin\AppData\Local\N5ir\DisplaySwitch.exeC:\Users\Admin\AppData\Local\N5ir\DisplaySwitch.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\sethc.exeC:\Windows\system32\sethc.exe1⤵
-
C:\Users\Admin\AppData\Local\uumA5\sethc.exeC:\Users\Admin\AppData\Local\uumA5\sethc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\SystemPropertiesComputerName.exeC:\Windows\system32\SystemPropertiesComputerName.exe1⤵
-
C:\Users\Admin\AppData\Local\xlDc\SystemPropertiesComputerName.exeC:\Users\Admin\AppData\Local\xlDc\SystemPropertiesComputerName.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
DUser.dll
DisplaySwitch.exe
UxTheme.dll
UxTheme.dll
sethc.exe
SYSDM.CPL
SystemPropertiesComputerName.exe
Vuzdvithyifjda.lnk
memory/2552-74-0x0000000140000000-0x00000001400FC000-memory.dmp
memory/2552-69-0x0000000140000000-0x00000001400FC000-memory.dmp
memory/2552-68-0x000001B77C380000-0x000001B77C387000-memory.dmp
memory/3160-23-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-13-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-17-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-18-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-16-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-20-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-19-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-21-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-22-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-5-0x00007FF9BD77A000-0x00007FF9BD77B000-memory.dmp
memory/3160-24-0x0000000003500000-0x0000000003507000-memory.dmp
memory/3160-31-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-35-0x00007FF9BDA30000-0x00007FF9BDA40000-memory.dmp
memory/3160-41-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-4-0x0000000003520000-0x0000000003521000-memory.dmp
memory/3160-15-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-14-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-8-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-7-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-9-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-12-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-11-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/3160-10-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/4000-44-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/4000-0-0x0000000140000000-0x00000001400FB000-memory.dmp
memory/4000-2-0x000001771BDF0000-0x000001771BDF7000-memory.dmp
memory/4476-57-0x0000000140000000-0x00000001400FD000-memory.dmp
memory/4476-52-0x0000000140000000-0x00000001400FD000-memory.dmp
memory/4476-51-0x0000020B79CB0000-0x0000020B79CB7000-memory.dmp
memory/4868-87-0x000001E5F5D40000-0x000001E5F5D47000-memory.dmp
memory/4868-90-0x0000000140000000-0x00000001400FC000-memory.dmp