Analysis
- max time kernel
150s - max time network
121s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
30/01/2024, 09:15
General
- Target 820d38a0c687ab0b550fe547c7bb1d6a.dll
- Size 1.7MB
- Sample240130-k73cfachd3
- SHA256 9ddd12552dc5850ed10c847816d6e5f80272a66117d765587662065ede3435c5
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\820d38a0c687ab0b550fe547c7bb1d6a.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Users\Admin\AppData\Local\rmMTk\msdtc.exeC:\Users\Admin\AppData\Local\rmMTk\msdtc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\msdtc.exeC:\Windows\system32\msdtc.exe1⤵
-
C:\Windows\system32\xpsrchvw.exeC:\Windows\system32\xpsrchvw.exe1⤵
-
C:\Users\Admin\AppData\Local\bDxi\xpsrchvw.exeC:\Users\Admin\AppData\Local\bDxi\xpsrchvw.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\dvdupgrd.exeC:\Windows\system32\dvdupgrd.exe1⤵
-
C:\Users\Admin\AppData\Local\HeBC\dvdupgrd.exeC:\Users\Admin\AppData\Local\HeBC\dvdupgrd.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
VERSION.dll
WINMM.dll
xpsrchvw.exe
xpsrchvw.exe
VERSION.dll
msdtc.exe
msdtc.exe
WINMM.dll
Gmfoo.lnk
VERSION.dll
VERSION.dll
VERSION.dll
dvdupgrd.exe
WINMM.dll
xpsrchvw.exe
VERSION.dll
msdtc.exe
memory/1252-18-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-41-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-32-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-33-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-31-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-29-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-51-0x0000000077361000-0x0000000077362000-memory.dmp
memory/1252-50-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-52-0x00000000774C0000-0x00000000774C2000-memory.dmp
memory/1252-28-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-27-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-26-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-24-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-25-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-22-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-61-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-23-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-19-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-4-0x0000000077256000-0x0000000077257000-memory.dmp
memory/1252-65-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-16-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-15-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-13-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-20-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-44-0x0000000002600000-0x0000000002607000-memory.dmp
memory/1252-5-0x00000000029E0000-0x00000000029E1000-memory.dmp
memory/1252-146-0x0000000077256000-0x0000000077257000-memory.dmp
memory/1252-9-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-42-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-40-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-39-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-70-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-14-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-12-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-11-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-7-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-10-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-37-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-35-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-38-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-17-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-36-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-34-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-30-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1252-21-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/1632-97-0x0000000000320000-0x0000000000327000-memory.dmp
memory/1632-98-0x0000000140000000-0x00000001401B7000-memory.dmp
memory/1732-121-0x0000000000220000-0x0000000000227000-memory.dmp
memory/2076-85-0x0000000140000000-0x00000001401B6000-memory.dmp
memory/2076-80-0x0000000140000000-0x00000001401B6000-memory.dmp
memory/2076-79-0x00000000000F0000-0x00000000000F7000-memory.dmp
memory/2088-8-0x0000000140000000-0x00000001401B5000-memory.dmp
memory/2088-0-0x0000000000110000-0x0000000000117000-memory.dmp
memory/2088-1-0x0000000140000000-0x00000001401B5000-memory.dmp