Analysis
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max time kernel
150s -
max time network
161s -
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, 14:53
Static task
static1
Behavioral task
behavioral1
Sample
c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe
Resource
win11-20240221-en
General
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Target
c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe
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Size
2.2MB
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MD5
7633dca5d925b32abd366e91fbe2ac98
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SHA1
727421d01d802cc078888b5c1ee8d3f23918e9fa
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SHA256
c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f
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SHA512
d5803a807abe581f7410e188a6fd0f85f04023ee9bc9bd9888084c4dbc7783b77d53f65b7ae4edc13883ca35fa7c4e382afea657e2c8cd2a1d296ce00e0f32d6
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SSDEEP
49152:32mfQXYO8+s1Ax+ZO6jYSkoHsOuMRSgkWZ7G5jvhQYI:mXYb+UAxe1j3kOsiSgfZ7G5jvhI
Malware Config
Extracted
socks5systemz
http://dihdaoe.info/search/?q=67e28dd83f08f2204807f9497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c9ed959c39
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/4928-68-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz behavioral2/memory/4928-78-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 3460 sitefreeedition.exe 4928 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.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 141.98.234.31 -
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 1800 wrote to memory of 4020 1800 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe 79 PID 1800 wrote to memory of 4020 1800 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe 79 PID 1800 wrote to memory of 4020 1800 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe 79 PID 4020 wrote to memory of 3460 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 80 PID 4020 wrote to memory of 3460 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 80 PID 4020 wrote to memory of 3460 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 80 PID 4020 wrote to memory of 4928 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 81 PID 4020 wrote to memory of 4928 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 81 PID 4020 wrote to memory of 4928 4020 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp 81
Processes
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C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe"C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp"C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp" /SL5="$80218,1935887,54272,C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4020 -
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:3460
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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:4928
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5aab53ad82ae610c58d3f84145b5faf33
SHA11095d690a94c7a3b8efe3b4d0ae3e081b3f4d8a1
SHA256357e8d5b68ecd7c862b7128059e1691138590eacada4c925b307e30a1738c867
SHA51233df4fd877180feb0eea30b96b947a1d6c87c1de80e0ef0e101a06202d9fcc82d5bc9f9496678f268aee3bce18d6cb1acf064fb0aa9eaf641ece396166f12668
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C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63