Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/03/2024, 06:19
General
- Target b16ce8cf2c90bead582b3352934352cd.dll
- Size 2.0MB
- Sample240304-g3jsrach67
- SHA256 9d6284ee17f38a641e367f665e40b83c2004fb40ddd63c4d901c3e6be555440d
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 4 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 14 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\b16ce8cf2c90bead582b3352934352cd.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\Narrator.exeC:\Windows\system32\Narrator.exe1⤵
-
C:\Users\Admin\AppData\Local\9EhW5w\Narrator.exeC:\Users\Admin\AppData\Local\9EhW5w\Narrator.exe1⤵
- Executes dropped EXE
-
C:\Windows\system32\SystemPropertiesHardware.exeC:\Windows\system32\SystemPropertiesHardware.exe1⤵
-
C:\Users\Admin\AppData\Local\ZY3Cv\SystemPropertiesHardware.exeC:\Users\Admin\AppData\Local\ZY3Cv\SystemPropertiesHardware.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\rdpshell.exeC:\Windows\system32\rdpshell.exe1⤵
-
C:\Users\Admin\AppData\Local\QF2mgTEu\rdpshell.exeC:\Users\Admin\AppData\Local\QF2mgTEu\rdpshell.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\AtBroker.exeC:\Windows\system32\AtBroker.exe1⤵
-
C:\Users\Admin\AppData\Local\P35Z\AtBroker.exeC:\Users\Admin\AppData\Local\P35Z\AtBroker.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
Narrator.exe
AtBroker.exe
UxTheme.dll
UxTheme.dll
dwmapi.dll
rdpshell.exe
SYSDM.CPL
SystemPropertiesHardware.exe
Xhrttmahy.lnk
memory/528-78-0x0000000140000000-0x00000001401FD000-memory.dmp
memory/528-84-0x0000000140000000-0x00000001401FD000-memory.dmp
memory/528-79-0x000001D78A8A0000-0x000001D78A8A7000-memory.dmp
memory/1112-7-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/1112-1-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/1112-0-0x00000291D4D80000-0x00000291D4D87000-memory.dmp
memory/1992-115-0x000002016F040000-0x000002016F047000-memory.dmp
memory/1992-120-0x0000000140000000-0x00000001401FD000-memory.dmp
memory/3464-20-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-41-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-23-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-18-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-24-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-25-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-26-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-27-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-28-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-30-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-29-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-32-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-33-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-31-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-35-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-34-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-36-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-37-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-38-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-39-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-40-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-22-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-42-0x0000000000930000-0x0000000000937000-memory.dmp
memory/3464-49-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-50-0x00007FFCBD860000-0x00007FFCBD870000-memory.dmp
memory/3464-59-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-61-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-21-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-19-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-17-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-16-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-14-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-15-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-13-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-12-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-5-0x00007FFCBC8EA000-0x00007FFCBC8EB000-memory.dmp
memory/3464-4-0x00000000026A0000-0x00000000026A1000-memory.dmp
memory/3464-11-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-10-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-9-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3464-8-0x0000000140000000-0x00000001401FC000-memory.dmp
memory/3640-103-0x0000000140000000-0x00000001401FD000-memory.dmp
memory/3640-98-0x0000017ACA960000-0x0000017ACA967000-memory.dmp