Analysis
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max time kernel
142s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04/08/2024, 13:24
Static task
static1
Behavioral task
behavioral1
Sample
IkpQaE4MtUvIW5WFsHjc3NdL.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
IkpQaE4MtUvIW5WFsHjc3NdL.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
IkpQaE4MtUvIW5WFsHjc3NdL.exe
Resource
win11-20240802-en
General
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Target
IkpQaE4MtUvIW5WFsHjc3NdL.exe
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Size
4.1MB
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MD5
4cd68c556df71032f3dd455d95ef4453
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SHA1
2b8ed48f8ec965f611746cc65ebba1964065f6e8
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SHA256
a045aae04ded2c18b1ab1e206c18bf954844afd6b9c6e9efcecc4cc05dae71da
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SHA512
a1c6da21dc5bbab999d29f32cb4b44a1eea9ddb8c20481439018f0fe006ee3aa3a8e7c7ab47f72abff88c01b6875582f38db13afb817c81420fcd4255143fd53
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SSDEEP
98304:NJWDz1j13W/mqqD8+X+k8fpYK36gPI/Qa3FMpouiedU:GDquo+X+k8hYG6t/Qa3FMpouiey
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/4188-83-0x0000000000830000-0x00000000008D2000-memory.dmp family_socks5systemz behavioral2/memory/4188-106-0x0000000000830000-0x00000000008D2000-memory.dmp family_socks5systemz behavioral2/memory/4188-107-0x0000000000830000-0x00000000008D2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 2924 combinerfree32.exe 4188 combinerfree32.exe -
Loads dropped DLL 3 IoCs
pid Process 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 2088 IkpQaE4MtUvIW5WFsHjc3NdL.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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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 combinerfree32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language combinerfree32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IkpQaE4MtUvIW5WFsHjc3NdL.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IkpQaE4MtUvIW5WFsHjc3NdL.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4816 wrote to memory of 2088 4816 IkpQaE4MtUvIW5WFsHjc3NdL.exe 85 PID 4816 wrote to memory of 2088 4816 IkpQaE4MtUvIW5WFsHjc3NdL.exe 85 PID 4816 wrote to memory of 2088 4816 IkpQaE4MtUvIW5WFsHjc3NdL.exe 85 PID 2088 wrote to memory of 2924 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 88 PID 2088 wrote to memory of 2924 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 88 PID 2088 wrote to memory of 2924 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 88 PID 2088 wrote to memory of 4188 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 89 PID 2088 wrote to memory of 4188 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 89 PID 2088 wrote to memory of 4188 2088 IkpQaE4MtUvIW5WFsHjc3NdL.tmp 89
Processes
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C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.exe"C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Users\Admin\AppData\Local\Temp\is-BKOAV.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp"C:\Users\Admin\AppData\Local\Temp\is-BKOAV.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp" /SL5="$5028A,4067069,54272,C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.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:2088 -
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2924
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C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4188
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.8MB
MD59b042eff3b0588152789eaf936240a98
SHA1b7dc00b65a62e942e395c472a1f9dc20fd521e7b
SHA256ea7652fd71370f4f6c76816719b6902bb63e39c03a3ddce57b447f2503b815e2
SHA5122dfc8ba920d69f93400ba40268d03b9c9669cc08364fe62b63a322177edac5dc824e2de66bed0695e8317c4a99bd61f80ebaa5ee8282eb6863ac121fb46d969a
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Filesize
692KB
MD5aaba635266ad32cae153be9b39c3e16e
SHA19d4338d105ccb852e8cd7ec055840c62e65e3555
SHA256e7c0bb4fbfd84a21e1560589d150f204689f5514964c328fe876c03bbf3399f9
SHA51270f09e276cefa6a57dbf97050be69f5f9fa4a8f39e1649b7d2c712447f6e3f27ac86d060d99dcf06484d9d25867d5a3b14aa9f5da8406a8915e34098d3606f67
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4