Analysis
- max time kernel
143s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
28/02/2024, 01:42
General
- Target aaaee675c50ce7579c26a829a38152a2.dll
- Size 1.7MB
- Sample240228-b44lnagc8z
- SHA256 8e63b94a0c3441756f0b35ed8ce8e3e31363d082d7518e4f0dbd67471e98a94e
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\aaaee675c50ce7579c26a829a38152a2.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\MDMAppInstaller.exeC:\Windows\system32\MDMAppInstaller.exe1⤵
-
C:\Users\Admin\AppData\Local\KAvfO\MDMAppInstaller.exeC:\Users\Admin\AppData\Local\KAvfO\MDMAppInstaller.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\sessionmsg.exeC:\Windows\system32\sessionmsg.exe1⤵
-
C:\Users\Admin\AppData\Local\gtH4Si\sessionmsg.exeC:\Users\Admin\AppData\Local\gtH4Si\sessionmsg.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\c5Jo92\sethc.exeC:\Users\Admin\AppData\Local\c5Jo92\sethc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1292 --field-trial-handle=2588,i,4353937220825226770,7138584070663735671,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
MDMAppInstaller.exe
WTSAPI32.dll
UxTheme.dll
sethc.exe
DUser.dll
sessionmsg.exe
Wsryduxuroil.lnk
UxTheme.dll
memory/1124-69-0x0000000140000000-0x00000001401B3000-memory.dmp
memory/1124-68-0x000001EC296A0000-0x000001EC296A7000-memory.dmp
memory/1124-74-0x0000000140000000-0x00000001401B3000-memory.dmp
memory/2760-1-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/2760-8-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/2760-0-0x000002EF0A340000-0x000002EF0A347000-memory.dmp
memory/2912-87-0x000001B1B83A0000-0x000001B1B83A7000-memory.dmp
memory/2912-88-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/2912-93-0x0000000140000000-0x00000001401B4000-memory.dmp
memory/3068-110-0x0000000140000000-0x00000001401B3000-memory.dmp
memory/3068-105-0x0000024B35700000-0x0000024B35707000-memory.dmp
memory/3408-17-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-47-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-25-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-24-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-26-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-27-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-28-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-29-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-30-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-31-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-32-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-33-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-34-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-35-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-36-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-37-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-38-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-40-0x0000000000F50000-0x0000000000F57000-memory.dmp
memory/3408-39-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-23-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-48-0x00007FFECA7E0000-0x00007FFECA7F0000-memory.dmp
memory/3408-57-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-59-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-22-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-21-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-20-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-19-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-18-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-16-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-15-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-14-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-13-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-12-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-11-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-10-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-9-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-7-0x0000000140000000-0x00000001401B2000-memory.dmp
memory/3408-4-0x0000000002ED0000-0x0000000002ED1000-memory.dmp
memory/3408-5-0x00007FFEC9FFA000-0x00007FFEC9FFB000-memory.dmp