Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
23/01/2024, 22:19
General
- Target 70b4e740a07d198ec5ac903eaed6ff43.dll
- Size 2.0MB
- Sample240123-18k3jsbdh9
- SHA256 718a533c6fd5cccfb5c4afd72ad1d850327a0b4e6a37aed68679e7bb4afce5ce
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 4 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\70b4e740a07d198ec5ac903eaed6ff43.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\EhStorAuthn.exeC:\Windows\system32\EhStorAuthn.exe1⤵
-
C:\Users\Admin\AppData\Local\VkS\EhStorAuthn.exeC:\Users\Admin\AppData\Local\VkS\EhStorAuthn.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\DisplaySwitch.exeC:\Windows\system32\DisplaySwitch.exe1⤵
-
C:\Users\Admin\AppData\Local\N3cxLFj\DisplaySwitch.exeC:\Users\Admin\AppData\Local\N3cxLFj\DisplaySwitch.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\recdisc.exeC:\Windows\system32\recdisc.exe1⤵
-
C:\Users\Admin\AppData\Local\Yi1lYyLD\recdisc.exeC:\Users\Admin\AppData\Local\Yi1lYyLD\recdisc.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
DUser.dll
DUser.dll
DisplaySwitch.exe
DisplaySwitch.exe
EhStorAuthn.exe
UxTheme.dll
UxTheme.dll
ReAgent.dll
ReAgent.dll
recdisc.exe
UxTheme.dll
Dvizybqqo.lnk
ReAgent.dll
DUser.dll
memory/1208-0-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/1208-1-0x000001F7E9FA0000-0x000001F7E9FA7000-memory.dmp
memory/1208-7-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/2196-86-0x0000000140000000-0x00000001401FA000-memory.dmp
memory/2196-85-0x0000024D87860000-0x0000024D87867000-memory.dmp
memory/2196-91-0x0000000140000000-0x00000001401FA000-memory.dmp
memory/3016-74-0x0000000140000000-0x00000001401F9000-memory.dmp
memory/3016-68-0x0000000140000000-0x00000001401F9000-memory.dmp
memory/3016-69-0x0000021B0E9E0000-0x0000021B0E9E7000-memory.dmp
memory/3484-19-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-25-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-26-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-24-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-30-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-34-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-35-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-38-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-40-0x00000000011D0000-0x00000000011D7000-memory.dmp
memory/3484-39-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-37-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-36-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-33-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-32-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-31-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-47-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-50-0x00007FFF61440000-0x00007FFF61450000-memory.dmp
memory/3484-57-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-59-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-28-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-29-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-27-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-23-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-22-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-21-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-20-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-18-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-17-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-16-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-11-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-15-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-14-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-13-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-5-0x00007FFF5FE1A000-0x00007FFF5FE1B000-memory.dmp
memory/3484-12-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-10-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-4-0x00000000011C0000-0x00000000011C1000-memory.dmp
memory/3484-9-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/3484-8-0x0000000140000000-0x00000001401F8000-memory.dmp
memory/4492-108-0x0000000140000000-0x00000001401F9000-memory.dmp
memory/4492-102-0x000002C3E3410000-0x000002C3E3417000-memory.dmp