Analysis
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max time kernel
150s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
10/08/2024, 22:38
Static task
static1
Behavioral task
behavioral1
Sample
920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe
Resource
win10v2004-20240802-en
General
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Target
920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe
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Size
4.5MB
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MD5
4701bf711ec2020789ade4b25ee8f2bb
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SHA1
e79a678815aef7d6b86b9ea30c69aa9fac637f8b
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SHA256
920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394
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SHA512
8adb129a6cd01c1e3f8925cfea323bbe9bcaaa1d52763d1243cf3c16886f8ff6d5b31c00f9c554e0f7a2ca388e8288c38fa6fb3f182eb8ee9121078945a665d0
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SSDEEP
98304:NNR38dfEtnSkdKChI/8jVUQ7Q3KEP4iY09ap47/MWRiKC0Ux2X0hndJ:DR38JEtVKD/8ZUQ72KEP4iY0U47tRi9v
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral1/memory/2936-89-0x0000000002310000-0x00000000023B2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 2192 avicodec32_64.exe 2936 avicodec32_64.exe -
Loads dropped DLL 6 IoCs
pid Process 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.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 45.155.250.90 -
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 avicodec32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language avicodec32_64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 3068 wrote to memory of 1276 3068 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe 30 PID 1276 wrote to memory of 2192 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 31 PID 1276 wrote to memory of 2192 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 31 PID 1276 wrote to memory of 2192 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 31 PID 1276 wrote to memory of 2192 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 31 PID 1276 wrote to memory of 2936 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 32 PID 1276 wrote to memory of 2936 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 32 PID 1276 wrote to memory of 2936 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 32 PID 1276 wrote to memory of 2936 1276 920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp 32
Processes
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C:\Users\Admin\AppData\Local\Temp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe"C:\Users\Admin\AppData\Local\Temp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Users\Admin\AppData\Local\Temp\is-2PHV3.tmp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp"C:\Users\Admin\AppData\Local\Temp\is-2PHV3.tmp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp" /SL5="$400F4,4411396,54272,C:\Users\Admin\AppData\Local\Temp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.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:1276 -
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:2192
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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:2936
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4.1MB
MD5e73a22508a925e41662b76ba4e494a19
SHA1b6ef636f469153f6cd2689e0bd43eaf412bca283
SHA256b4a034644b3237264e39d049ba6b531bbab88ab4086879a7bd5b4e5b16200808
SHA5126575c54df45cf50835cba73cb5de8741e17150ed0c1564947f898dc226cce8b939bedd21d1f2eb1e1ea3462ebd94b67323fd734384db9fe564dec0dd0ebd1b80
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\Users\Admin\AppData\Local\Temp\is-2PHV3.tmp\920477db829ff70d2a2d48c58854d7429267bd0a114c48fdc4cf13f9c815b394.tmp
Filesize692KB
MD585fc5b8836d8625fbfa40a092386e645
SHA1a90bb83f5d8d024bb357a44682267a50406071d6
SHA2566dda4c9c34d1898b592ebeccee9f4b2a2bffefd68296da6310435e13fb63d950
SHA512c50e53c2c695c7ba24b4cc2c2f958e1e9ce4eea9b541684ea41c7cae513919bb80171dcaaf1c18a8f37221737e6a1f8ba0881a224abd3dd09407d0c4edb96aae
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3