Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
15/02/2024, 01:14
General
- Target 9c90e50da32310737cca609f6a65e2fe.dll
- Size 2.0MB
- Sample240215-bl4tpsea85
- SHA256 0d80980d1ba853d25969663dc7dadce3620a2654ab61e2f6c9a04909fd4807b7
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\9c90e50da32310737cca609f6a65e2fe.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\BdeUISrv.exeC:\Windows\system32\BdeUISrv.exe1⤵
-
C:\Users\Admin\AppData\Local\94m1Hw5\BdeUISrv.exeC:\Users\Admin\AppData\Local\94m1Hw5\BdeUISrv.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\raserver.exeC:\Windows\system32\raserver.exe1⤵
-
C:\Users\Admin\AppData\Local\SHUHwbKsv\raserver.exeC:\Users\Admin\AppData\Local\SHUHwbKsv\raserver.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\CustomShellHost.exeC:\Windows\system32\CustomShellHost.exe1⤵
-
C:\Users\Admin\AppData\Local\Z2pEpVbb\CustomShellHost.exeC:\Users\Admin\AppData\Local\Z2pEpVbb\CustomShellHost.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
BdeUISrv.exe
WTSAPI32.dll
WTSAPI32.dll
WTSAPI32.dll
raserver.exe
CustomShellHost.exe
WTSAPI32.dll
Enpllr.lnk
memory/656-6-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/656-1-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/656-0-0x0000018D63020000-0x0000018D63027000-memory.dmp
memory/2504-90-0x0000000140000000-0x00000001401F6000-memory.dmp
memory/2504-85-0x000001C4B5A70000-0x000001C4B5A77000-memory.dmp
memory/3056-71-0x0000000140000000-0x00000001401F6000-memory.dmp
memory/3056-65-0x0000000140000000-0x00000001401F6000-memory.dmp
memory/3056-66-0x0000022050250000-0x0000022050257000-memory.dmp
memory/3364-16-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-44-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-22-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-23-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-24-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-19-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-25-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-26-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-27-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-28-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-29-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-30-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-31-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-32-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-33-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-35-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-34-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-37-0x0000000000610000-0x0000000000617000-memory.dmp
memory/3364-36-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-21-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-45-0x00007FFE544C0000-0x00007FFE544D0000-memory.dmp
memory/3364-54-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-56-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-20-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-18-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-17-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-15-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-14-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-12-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-13-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-7-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-11-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-10-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-9-0x0000000140000000-0x00000001401F5000-memory.dmp
memory/3364-8-0x00007FFE53C7A000-0x00007FFE53C7B000-memory.dmp
memory/3364-4-0x0000000002300000-0x0000000002301000-memory.dmp
memory/5064-107-0x0000000140000000-0x00000001401F6000-memory.dmp
memory/5064-101-0x0000021A6E750000-0x0000021A6E757000-memory.dmp