Analysis
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max time kernel
112s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-12-2024 07:45
Static task
static1
Behavioral task
behavioral1
Sample
76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe
Resource
win10v2004-20241007-en
General
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Target
76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe
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Size
7.8MB
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MD5
e554655c247a390fe0bd391bf54776da
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SHA1
f182267452dbccdb28d2a0f74eb59d3e652038ae
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SHA256
76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8
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SHA512
c159a844ef1564e1308aaba5dd60b90356a3a9a482280a2947b6507468468c5d6d85f380d7696e1a76259000263b425a0bf8456b4e2b5206652fdcfdb91990df
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SSDEEP
196608:+TgbRGSHLDj2kjBRbd3+TnH5D4vltlCIBeiQf6e4mhV9:HbRG8LP2WlsZD4vloLf6e4En
Malware Config
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/1660-178-0x0000000000A60000-0x0000000000B02000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Socks5systemz family
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Executes dropped EXE 3 IoCs
pid Process 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 4276 bassmix.exe 1660 bassmix.exe -
Loads dropped DLL 3 IoCs
pid Process 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.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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Drops file in Program Files directory 63 IoCs
description ioc Process File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-QL50L.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-9A376.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-AJTLE.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-91ETO.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-GJSRE.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-74UPL.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-MDFOM.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-6M53K.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-F1B02.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-0F0G8.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-JT22T.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\plugins\internal\is-C4DVI.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-G98FT.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-4L2BP.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\install\unins000.dat 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\install\is-NU3UI.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-L20P8.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-E87D3.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-TJTB3.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-PS1QG.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-U23VO.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-8I6BV.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File opened for modification C:\Program Files (x86)\BassMixerLib\install\unins000.dat 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-U3P7U.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-ADV8H.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-5I2L0.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-T7IFC.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File opened for modification C:\Program Files (x86)\BassMixerLib\bassmix.exe 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-03SG4.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\is-V5OT8.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-07GM7.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-JEL25.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-27HO0.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\lessmsi\is-S963O.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\stuff\is-AOOV6.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-VJ1BR.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-JNJ6O.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-A53D4.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-8I9SI.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-D3BKC.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-171FS.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-JEQUS.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-A17J3.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-ASKRV.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\plugins\internal\is-93QU7.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\stuff\is-STCQE.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-MG3UI.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-31N5J.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-5O6RQ.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\stuff\is-PNCU5.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-IR6JB.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-7DL4I.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-E4UGI.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-3H49U.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-1HVRF.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-SH71M.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-BA9V1.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-DO16Q.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\stuff\is-JOD4U.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-EJBGO.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-GEP68.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-PSD0V.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp File created C:\Program Files (x86)\BassMixerLib\bin\x86\is-SL87U.tmp 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp -
System Location Discovery: System Language Discovery 1 TTPs 7 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 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bassmix.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bassmix.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language net1.exe -
Runs net.exe
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Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2320 wrote to memory of 3892 2320 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe 82 PID 2320 wrote to memory of 3892 2320 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe 82 PID 2320 wrote to memory of 3892 2320 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe 82 PID 3892 wrote to memory of 4652 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 83 PID 3892 wrote to memory of 4652 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 83 PID 3892 wrote to memory of 4652 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 83 PID 3892 wrote to memory of 4276 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 85 PID 3892 wrote to memory of 4276 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 85 PID 3892 wrote to memory of 4276 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 85 PID 3892 wrote to memory of 3776 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 86 PID 3892 wrote to memory of 3776 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 86 PID 3892 wrote to memory of 3776 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 86 PID 3892 wrote to memory of 1660 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 87 PID 3892 wrote to memory of 1660 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 87 PID 3892 wrote to memory of 1660 3892 76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp 87 PID 3776 wrote to memory of 1320 3776 net.exe 89 PID 3776 wrote to memory of 1320 3776 net.exe 89 PID 3776 wrote to memory of 1320 3776 net.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe"C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp"C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp" /SL5="$602C4,7945557,54272,C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3892 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵
- System Location Discovery: System Language Discovery
PID:4652
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C:\Program Files (x86)\BassMixerLib\bassmix.exe"C:\Program Files (x86)\BassMixerLib\bassmix.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4276
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 73⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3776 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 74⤵
- System Location Discovery: System Language Discovery
PID:1320
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C:\Program Files (x86)\BassMixerLib\bassmix.exe"C:\Program Files (x86)\BassMixerLib\bassmix.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1660
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.6MB
MD5d19f25c705d64721ac18a53f8a5d5d12
SHA19992344a9cd183e2d7a02f3464a05d994877866d
SHA2561d63bc61bf361dae8e34902845aee92de7124aa6980b4ebe36dc5cbf643f61c4
SHA512493c43cab428006195d40c072b79d7b3df640b2c3ddf675464755c7c9d74a5bd94d27c290abd0479bcfe4cf98100464b61e640e3faf4bf4661003fcf8edd00fd
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp
Filesize694KB
MD55525670a9e72d77b368a9aa4b8c814c1
SHA13fdad952ea00175f3a6e549b5dca4f568e394612
SHA2561180706added2a7899f08f25a9f88ecff5d003ba8964f918d00779565e4a6978
SHA512757249f7e67f82522a8e3079a22c5cf92111626446a32ad3ef876f23885f62d1bb5bf3238d564e23531d062fe18742568dfc00e33b049bb8eef05eb953ef981a