Analysis
- max time kernel
150s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
15/03/2024, 03:25
General
- Target c6ef1430fb821203d29bcc7d72970795.dll
- Size 1.7MB
- Sample240315-dym3tsfb81
- SHA256 fe95d4abe6df658b20599b46381097dacfa3eba773f607c4d7f73770676deda1
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
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 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\c6ef1430fb821203d29bcc7d72970795.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\system32\RecoveryDrive.exeC:\Windows\system32\RecoveryDrive.exe1⤵
-
C:\Users\Admin\AppData\Local\pev\RecoveryDrive.exeC:\Users\Admin\AppData\Local\pev\RecoveryDrive.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\SndVol.exeC:\Windows\system32\SndVol.exe1⤵
-
C:\Users\Admin\AppData\Local\pD2YpEQ\SndVol.exeC:\Users\Admin\AppData\Local\pD2YpEQ\SndVol.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
-
C:\Windows\system32\EhStorAuthn.exeC:\Windows\system32\EhStorAuthn.exe1⤵
-
C:\Users\Admin\AppData\Local\GoJM\EhStorAuthn.exeC:\Users\Admin\AppData\Local\GoJM\EhStorAuthn.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
EhStorAuthn.exe
UxTheme.dll
SndVol.exe
UxTheme.dll
ReAgent.dll
RecoveryDrive.exe
Jnsvybh.lnk
memory/3452-26-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-28-0x0000000000D50000-0x0000000000D57000-memory.dmp
memory/3452-13-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-10-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-15-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-14-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-16-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-17-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-18-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-19-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-20-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-22-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-23-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-21-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-24-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-4-0x0000000003200000-0x0000000003201000-memory.dmp
memory/3452-25-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-27-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-29-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-12-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-36-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-46-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-40-0x00007FFB279E0000-0x00007FFB279F0000-memory.dmp
memory/3452-48-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-11-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-9-0x00007FFB260DA000-0x00007FFB260DB000-memory.dmp
memory/3452-6-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3452-8-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/3460-92-0x00000223D03B0000-0x00000223D03B7000-memory.dmp
memory/3460-97-0x0000000140000000-0x00000001401AD000-memory.dmp
memory/4004-75-0x0000017914990000-0x0000017914997000-memory.dmp
memory/4004-80-0x0000000140000000-0x00000001401AD000-memory.dmp
memory/4400-7-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/4400-0-0x0000019F123B0000-0x0000019F123B7000-memory.dmp
memory/4400-1-0x0000000140000000-0x00000001401AC000-memory.dmp
memory/4436-63-0x0000000140000000-0x00000001401AD000-memory.dmp
memory/4436-58-0x000001DAC3E90000-0x000001DAC3E97000-memory.dmp
memory/4436-57-0x0000000140000000-0x00000001401AD000-memory.dmp