Analysis
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max time kernel
113s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
22/02/2024, 21:03
Static task
static1
Behavioral task
behavioral1
Sample
F98B2D4646C95810DB7AF07535AD6688.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
F98B2D4646C95810DB7AF07535AD6688.exe
Resource
win10v2004-20240221-en
General
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Target
F98B2D4646C95810DB7AF07535AD6688.exe
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Size
4.2MB
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MD5
f98b2d4646c95810db7af07535ad6688
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SHA1
f61d8a911aaa3f79ada6163c133ddd03bffe8806
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SHA256
2f63ab6e1fc2c86308284d7e6becebb2b4581b6f520da008d9ea8a558718484a
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SHA512
02a3a77c4ac40c13b347c72950e186d2889b9d46becd672b19b584ec752906443ab1f63149770edc49350fb95605cc07cd7b3f00c4ae81bec4f1ae68948c3426
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SSDEEP
98304:IaKj6E21RV0hiaIyTZWxOIay7e89CS7+LWTPTscL0:AjVSVqXtW4/UCnW3sT
Malware Config
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral2/memory/1376-87-0x0000000000960000-0x0000000000A02000-memory.dmp family_socks5systemz behavioral2/memory/1376-90-0x0000000000960000-0x0000000000A02000-memory.dmp family_socks5systemz behavioral2/memory/1376-99-0x0000000000960000-0x0000000000A02000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 5016 vsoinspector.exe 1376 vsoinspector.exe -
Loads dropped DLL 3 IoCs
pid Process 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 2540 F98B2D4646C95810DB7AF07535AD6688.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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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 2540 F98B2D4646C95810DB7AF07535AD6688.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2540 F98B2D4646C95810DB7AF07535AD6688.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4868 wrote to memory of 2540 4868 F98B2D4646C95810DB7AF07535AD6688.exe 88 PID 4868 wrote to memory of 2540 4868 F98B2D4646C95810DB7AF07535AD6688.exe 88 PID 4868 wrote to memory of 2540 4868 F98B2D4646C95810DB7AF07535AD6688.exe 88 PID 2540 wrote to memory of 5016 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 90 PID 2540 wrote to memory of 5016 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 90 PID 2540 wrote to memory of 5016 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 90 PID 2540 wrote to memory of 1376 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 91 PID 2540 wrote to memory of 1376 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 91 PID 2540 wrote to memory of 1376 2540 F98B2D4646C95810DB7AF07535AD6688.tmp 91
Processes
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C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe"C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Users\Admin\AppData\Local\Temp\is-E8K1M.tmp\F98B2D4646C95810DB7AF07535AD6688.tmp"C:\Users\Admin\AppData\Local\Temp\is-E8K1M.tmp\F98B2D4646C95810DB7AF07535AD6688.tmp" /SL5="$3022C,4181011,54272,C:\Users\Admin\AppData\Local\Temp\F98B2D4646C95810DB7AF07535AD6688.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe"C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe" -i3⤵
- Executes dropped EXE
PID:5016
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C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe"C:\Users\Admin\AppData\Local\VSO Inspector\vsoinspector.exe" -s3⤵
- Executes dropped EXE
PID:1376
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
689KB
MD5d5709c2171e58c1106a886c080be01f8
SHA11f7ae64452f9ba78d65c0d4e6a4d0167f26d04d1
SHA2564f80b4906439bec266cc9f4552f7cfd82bdeac0d7bf29da0040a673cd6576561
SHA512965d1eca832cbc354717170a42833212da56117485219203758aff248ceb95139ac0a208fe5eb998467307c13e0be3dd6a1b196ef141bd462cc7642c2cdb5ccd
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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
3.3MB
MD56817d1a22f42e096ad657f591962d4be
SHA160c4bd31aef44293bc9f1b7765419f926c7da876
SHA2564a62e215b029be175b8d1c5d877a052be9498108dfd0e20fe0946f2345317eaa
SHA512343728cf09fb344bb016ecfe6a9a88fada58466cd8862c3db0217790e05654859f8149e48453e35f2c3eadcbb0f053c7128398e6eaf83c17665c33b7eead4aed
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Filesize
3.1MB
MD5c15f7495a8f6222e70d79a2bc7d8a8d4
SHA1103e1d93d477af85048d3a67ff931adf999cf3ad
SHA25660bdad8aba0131faf92b09d55a1e5faa54a23be3a7f3c6feefe64da94f9edae4
SHA512c6ee301c8be51d78f4a0e0991bf2b5ce85e662853a05fcd30503344fac4c5aee90bb82a18cde845eb44b64d3692e7bbc287f53b7f793199f57ff1b32fc3b8d64