Analysis
- max time kernel
143s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
25/06/2024, 14:07
General
- Target crt.exe
- Size 5.1MB
- Sample240625-rfa77sthpe
- SHA256 6185fdacf0b903ea8bb2eee380a0c60e314ad7da93c7833b188c796f3f97b5be
Malware Config
Extracted
-
socks5systemz
-
eberzge.ua
-
http://eberzge.ua/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff612c2eb909939
-
http://eberzge.ua/search/?q=67e28dd86e09a721465dff1c7c27d78406abdd88be4b12eab517aa5c96bd86e590834596148ab2865b77f80ebad9cc0f7cb63037ed2ab423a4324383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1e696983fc86c94
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\crt.exe"C:\Users\Admin\AppData\Local\Temp\crt.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IQTDS.tmp\crt.tmp"C:\Users\Admin\AppData\Local\Temp\is-IQTDS.tmp\crt.tmp" /SL5="$8020A,5052624,54272,C:\Users\Admin\AppData\Local\Temp\crt.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mp3ripfreeedition32.exe
crt.tmp
_iscrypt.dll
memory/1124-96-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-80-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-117-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-114-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-110-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1124-109-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1124-108-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-68-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-105-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-102-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-71-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-74-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-77-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-99-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-83-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-86-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1124-90-0x0000000000400000-0x0000000000738000-memory.dmp
memory/1124-93-0x0000000000400000-0x0000000000738000-memory.dmp
memory/3192-64-0x0000000000400000-0x0000000000738000-memory.dmp
memory/3192-65-0x0000000000400000-0x0000000000738000-memory.dmp
memory/3192-60-0x0000000000400000-0x0000000000738000-memory.dmp
memory/3192-59-0x0000000000400000-0x0000000000738000-memory.dmp
memory/3776-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3776-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3776-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3812-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3812-70-0x0000000000400000-0x00000000004BA000-memory.dmp