Analysis
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max time kernel
141s -
max time network
126s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
24/03/2024, 17:35
Static task
static1
Behavioral task
behavioral1
Sample
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
Resource
win11-20240221-en
General
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Target
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
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Size
2.0MB
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MD5
c4e8146864f98ad993f1483174635ad1
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SHA1
1ab7de41fffe40a1611e5deec20ea313188b1539
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SHA256
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4
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SHA512
d1784df7c8c626f1f15c938405823b9fb926584becfc2f34e8afec995f5bca50b542831f7cc36598a80d2cb4a0d5b4fde1008499f5d8ef3b7cc25bd8d4a5d38e
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SSDEEP
49152:32Yv6dMl3Y0IIwXgSduJFHoX6RmrJ/ajQDFg0qwbplXY0WFI:mYi2l5I7mHw6REJ/WWNbYPFI
Malware Config
Extracted
socks5systemz
http://ddblngp.info/search/?q=67e28dd83e5cf579400faa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c0ee9d9b3e
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/2076-67-0x0000000000980000-0x0000000000A22000-memory.dmp family_socks5systemz behavioral2/memory/2076-70-0x0000000000980000-0x0000000000A22000-memory.dmp family_socks5systemz behavioral2/memory/2076-79-0x0000000000980000-0x0000000000A22000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 1492 sitefreeedition.exe 2076 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.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.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 236 wrote to memory of 1632 236 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 78 PID 236 wrote to memory of 1632 236 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 78 PID 236 wrote to memory of 1632 236 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 78 PID 1632 wrote to memory of 1492 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 79 PID 1632 wrote to memory of 1492 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 79 PID 1632 wrote to memory of 1492 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 79 PID 1632 wrote to memory of 2076 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 80 PID 1632 wrote to memory of 2076 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 80 PID 1632 wrote to memory of 2076 1632 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 80
Processes
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C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:236 -
C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp"C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp" /SL5="$701F8,1776977,54272,C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1632 -
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i3⤵
- Executes dropped EXE
PID:1492
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C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s3⤵
- Executes dropped EXE
PID:2076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.0MB
MD59002b549ae8e8c7dcc447065c93056c7
SHA167e0428017a232d12202e5c56301e9f9503681b4
SHA2562abb09df861a03e1b88d9074d319dd6a676c62e80a65c058e60f605af2d015ac
SHA51248487168d49c2108a8db699cc64404afe60374b0d55214d157276430f75d6ea944ed2657d6f808999421bfe7c104e27111746605aca0f6a4439049bc403364ca
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C:\Users\Admin\AppData\Local\Temp\is-12SN7.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63