Analysis
-
max time kernel
142s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
10/08/2024, 23:32
Static task
static1
Behavioral task
behavioral1
Sample
aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe
Resource
win11-20240802-en
General
-
Target
aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe
-
Size
4.6MB
-
MD5
bbe1278b5b721383225df3370267ba23
-
SHA1
d57f190870967778a0214bb185b256d90800123a
-
SHA256
aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5
-
SHA512
3ab7c95a0393ef9e809f95c4625de6f1294199beee03ee2a2352eaf75fd1e8d1d2cebc6e954b9299ae7eeb7cbef7385c0b82f7f69a30014fae2f0890d050bd8d
-
SSDEEP
98304:NAUJSl+JAHkJCl5ypPHKMjX+0bUJmWIfsrXb5QTJAOqsXBWT5odJ:WTlweYpyJ0QoNQX6Az75oD
Malware Config
Signatures
-
Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral1/memory/5040-83-0x0000000000950000-0x00000000009F2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
pid Process 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 216 avicodec32_64.exe 5040 avicodec32_64.exe -
Loads dropped DLL 3 IoCs
pid Process 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 152.89.198.214 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language avicodec32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language avicodec32_64.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2128 wrote to memory of 4768 2128 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe 84 PID 2128 wrote to memory of 4768 2128 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe 84 PID 2128 wrote to memory of 4768 2128 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe 84 PID 4768 wrote to memory of 216 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 88 PID 4768 wrote to memory of 216 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 88 PID 4768 wrote to memory of 216 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 88 PID 4768 wrote to memory of 5040 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 89 PID 4768 wrote to memory of 5040 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 89 PID 4768 wrote to memory of 5040 4768 aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128 -
C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp"C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp" /SL5="$B0060,4598069,54272,C:\Users\Admin\AppData\Local\Temp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4768 -
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:216
-
-
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5040
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
4.3MB
MD50376899342a3ef9ed26e272ead37a7a8
SHA1550ab1348064e0cb0cab20f248fe906ae34f6f1b
SHA2563463b04592fed7490b962457eb70c633f6f868ad87ff6ad6f97a5e8ec3600c63
SHA512006011a20c9d1013dce320f67c007cb86668c3973c710b905c7466cf79198f67060a5340c891d0e0f731c004ec93aa0fd7f5293d707ff5541f0cf8b6a40daebf
-
C:\Users\Admin\AppData\Local\Temp\is-2SHK7.tmp\aaa2cbc31474b55c06be287fedd2e9d0921ae1fb56a5555b9319c9fc7835b6f5.tmp
Filesize692KB
MD585fc5b8836d8625fbfa40a092386e645
SHA1a90bb83f5d8d024bb357a44682267a50406071d6
SHA2566dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950
SHA512c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4