Analysis
- max time kernel
151s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
15/02/2024, 07:55
General
- Target 9d5e52db2af3389c4b202aa75029419f.dll
- Size 1.4MB
- Sample240215-jsfdpach59
- SHA256 4779071ecbe6013b65913c1c95b2bcf0e90cd9fc3d3f3cec16f7785d8424173d
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 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\9d5e52db2af3389c4b202aa75029419f.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\sessionmsg.exeC:\Windows\system32\sessionmsg.exe1⤵
-
C:\Users\Admin\AppData\Local\xlew\sessionmsg.exeC:\Users\Admin\AppData\Local\xlew\sessionmsg.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\InfDefaultInstall.exeC:\Windows\system32\InfDefaultInstall.exe1⤵
-
C:\Users\Admin\AppData\Local\ittI\InfDefaultInstall.exeC:\Users\Admin\AppData\Local\ittI\InfDefaultInstall.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\WindowsActionDialog.exeC:\Windows\system32\WindowsActionDialog.exe1⤵
-
C:\Users\Admin\AppData\Local\6vw7RKAF\WindowsActionDialog.exeC:\Users\Admin\AppData\Local\6vw7RKAF\WindowsActionDialog.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
DUI70.dll
WindowsActionDialog.exe
InfDefaultInstall.exe
newdev.dll
DUser.dll
DUser.dll
sessionmsg.exe
Btpzaqnqvnv.lnk
DUser.dll
memory/64-1-0x0000000140000000-0x000000014015E000-memory.dmp
memory/64-0-0x0000026AD4AF0000-0x0000026AD4AF7000-memory.dmp
memory/64-7-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-17-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-47-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-21-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-22-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-23-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-20-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-18-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-16-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-13-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-24-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-26-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-25-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-27-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-28-0x0000000001300000-0x0000000001307000-memory.dmp
memory/3524-35-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-36-0x00007FFC64D00000-0x00007FFC64D10000-memory.dmp
memory/3524-45-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-19-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-15-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-14-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-12-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-4-0x0000000003060000-0x0000000003061000-memory.dmp
memory/3524-8-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-6-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-11-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-10-0x0000000140000000-0x000000014015E000-memory.dmp
memory/3524-9-0x00007FFC634FA000-0x00007FFC634FB000-memory.dmp
memory/3908-91-0x0000028DCF680000-0x0000028DCF687000-memory.dmp
memory/3908-90-0x0000000140000000-0x00000001401A4000-memory.dmp
memory/3908-96-0x0000000140000000-0x00000001401A4000-memory.dmp
memory/4836-62-0x0000000140000000-0x0000000140160000-memory.dmp
memory/4836-57-0x0000000140000000-0x0000000140160000-memory.dmp
memory/4836-56-0x000001756CD20000-0x000001756CD27000-memory.dmp
memory/5116-74-0x0000000140000000-0x000000014015F000-memory.dmp
memory/5116-79-0x0000000140000000-0x000000014015F000-memory.dmp
memory/5116-73-0x000001E8ABD00000-0x000001E8ABD07000-memory.dmp