Analysis
- max time kernel
150s - max time network
126s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
13/02/2024, 17:14
General
- Target 99b28fbb51afef4aa0aef0cd761e6a36.dll
- Size 1.7MB
- Sample240213-vr54hadf2s
- SHA256 37136def5d2f3007937d09b1ed1b5b1402da0ba140fb95c6f9fea67fc7769031
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 7 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 18 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\99b28fbb51afef4aa0aef0cd761e6a36.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\irftp.exeC:\Windows\system32\irftp.exe1⤵
-
C:\Users\Admin\AppData\Local\V8f66Mkm\irftp.exeC:\Users\Admin\AppData\Local\V8f66Mkm\irftp.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\fvenotify.exeC:\Windows\system32\fvenotify.exe1⤵
-
C:\Users\Admin\AppData\Local\L83xB3D\fvenotify.exeC:\Users\Admin\AppData\Local\L83xB3D\fvenotify.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\cttune.exeC:\Windows\system32\cttune.exe1⤵
-
C:\Users\Admin\AppData\Local\pPk3BaOU\cttune.exeC:\Users\Admin\AppData\Local\pPk3BaOU\cttune.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
slc.dll
WTSAPI32.dll
irftp.exe
OLEACC.dll
cttune.exe
cttune.exe
Gmfoo.lnk
fvenotify.exe
OLEACC.dll
cttune.exe
memory/1184-18-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-38-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-15-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-16-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-17-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-141-0x0000000076F76000-0x0000000076F77000-memory.dmp
memory/1184-19-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-20-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-22-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-21-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-23-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-25-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-26-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-24-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-27-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-28-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-29-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-31-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-30-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-32-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-33-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-34-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-35-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-36-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-37-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-14-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-41-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-40-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-39-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-43-0x0000000002780000-0x0000000002787000-memory.dmp
memory/1184-49-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-50-0x0000000077081000-0x0000000077082000-memory.dmp
memory/1184-53-0x00000000771E0000-0x00000000771E2000-memory.dmp
memory/1184-60-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-66-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-13-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-12-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-4-0x0000000076F76000-0x0000000076F77000-memory.dmp
memory/1184-5-0x0000000002AB0000-0x0000000002AB1000-memory.dmp
memory/1184-8-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-11-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-10-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1184-9-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1660-116-0x00000000001F0000-0x00000000001F7000-memory.dmp
memory/1744-84-0x0000000140000000-0x00000001401B6000-memory.dmp
memory/1744-79-0x0000000140000000-0x00000001401B6000-memory.dmp
memory/1744-78-0x0000000000110000-0x0000000000117000-memory.dmp
memory/2496-7-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/2496-0-0x00000000001A0000-0x00000000001A7000-memory.dmp
memory/2496-1-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/2944-98-0x0000000000290000-0x0000000000297000-memory.dmp