Analysis
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max time kernel
112s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03/08/2024, 07:10
Static task
static1
Behavioral task
behavioral1
Sample
684470300c4b90bbb227c45a182ac650N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
684470300c4b90bbb227c45a182ac650N.exe
Resource
win10v2004-20240802-en
General
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Target
684470300c4b90bbb227c45a182ac650N.exe
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Size
4.3MB
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MD5
684470300c4b90bbb227c45a182ac650
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SHA1
ce7105100a3c680dc818710b75374ff742720278
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SHA256
6cf660335530817ddbf899f3b37d846937262a7212e24ce6313c0790fd8fe132
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SHA512
ecef3b272d2d6eee95b7d4cb8d5b5c4798ccc542a185f35b2007cea18cb8acef05952f93b739d6bf7a8a30ab2cce3a3334d4275f3cfc5056c0175fd00e837999
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SSDEEP
98304:NInbEpV4AZefRatOfCbifJF+DLfusnnKsGqJRmYdI:V44eJatOkg+fFnKsGuS
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/3128-83-0x0000000000A40000-0x0000000000AE2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4740 684470300c4b90bbb227c45a182ac650N.tmp 116 freecudavideoconverter.exe 3128 freecudavideoconverter.exe -
Loads dropped DLL 3 IoCs
pid Process 4740 684470300c4b90bbb227c45a182ac650N.tmp 4740 684470300c4b90bbb227c45a182ac650N.tmp 4740 684470300c4b90bbb227c45a182ac650N.tmp -
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 684470300c4b90bbb227c45a182ac650N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 684470300c4b90bbb227c45a182ac650N.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language freecudavideoconverter.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language freecudavideoconverter.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4740 684470300c4b90bbb227c45a182ac650N.tmp 4740 684470300c4b90bbb227c45a182ac650N.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4740 684470300c4b90bbb227c45a182ac650N.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3216 wrote to memory of 4740 3216 684470300c4b90bbb227c45a182ac650N.exe 85 PID 3216 wrote to memory of 4740 3216 684470300c4b90bbb227c45a182ac650N.exe 85 PID 3216 wrote to memory of 4740 3216 684470300c4b90bbb227c45a182ac650N.exe 85 PID 4740 wrote to memory of 116 4740 684470300c4b90bbb227c45a182ac650N.tmp 88 PID 4740 wrote to memory of 116 4740 684470300c4b90bbb227c45a182ac650N.tmp 88 PID 4740 wrote to memory of 116 4740 684470300c4b90bbb227c45a182ac650N.tmp 88 PID 4740 wrote to memory of 3128 4740 684470300c4b90bbb227c45a182ac650N.tmp 89 PID 4740 wrote to memory of 3128 4740 684470300c4b90bbb227c45a182ac650N.tmp 89 PID 4740 wrote to memory of 3128 4740 684470300c4b90bbb227c45a182ac650N.tmp 89
Processes
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C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.exe"C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3216 -
C:\Users\Admin\AppData\Local\Temp\is-1235U.tmp\684470300c4b90bbb227c45a182ac650N.tmp"C:\Users\Admin\AppData\Local\Temp\is-1235U.tmp\684470300c4b90bbb227c45a182ac650N.tmp" /SL5="$70042,4221967,54272,C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.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:4740 -
C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe"C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:116
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C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe"C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.3MB
MD53e1d4537b5c6d96e4e0214d33da284c7
SHA18cfb7856e835dc465bf2888c6830dee5a8810736
SHA256e505b7a0b2665c5541ee0e44765edcf7348771623ab1c6122f1f3f1f65c2b46c
SHA512629e3ace172066d00d3b23769dc7047fccae689370ed09c19c62dd514697aa55e5662f5d7fb39416c2ff0135a0894ab83d02973e186a5ffcafe13fc3c288c759
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Filesize
692KB
MD59b4f9ec7acaa0201282f5bb6fc15978b
SHA150aae7d705db9c1ae5bb2b1f4c9317354cc04556
SHA256bc85afd449745aed63029469eec4cc92683dc7645c8ef79cd2dd6ea2fc426916
SHA512ca4ef38cd8f79dc87b5492a9336c716587921e7123728046c802ec90386d9da9c1d1b8df45248aa191286c5fdb99e70dbd7205844c93715a26657ec7bf92918d
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4