Analysis
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max time kernel
146s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
31-05-2024 03:36
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win11-20240508-en
General
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Target
XClient.exe
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Size
72KB
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MD5
886abac8e29288624c9cfc55dfc7d940
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SHA1
35cf22bb640bdb7a641ce6dbb8efec00da592b0e
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SHA256
8fcf527c18bd78b4fb4a7933eaba050826ce621f70ec6660da71607cf768f381
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SHA512
6ae6939341612bedd320d276285b9a07884aa3ae941aac90a404d50bc696336cc278e2eee32c0a8f43782c9522a86ff1a0e89cd48fdaaf2040a074a65c0036f7
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SSDEEP
1536:tsWNT4wTOYvKz3Gvdr4u+bXcpqmQOVXoGe6Yp2hnz/ORgRW96exN:tsa4sy7Gvd3+bXcpK2bOuWv
Malware Config
Extracted
xworm
loss-winners.gl.at.ply.gg:61007
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Install_directory
%AppData%
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install_file
Expensive 3.1.exe
Signatures
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/4432-1-0x0000000000910000-0x0000000000928000-memory.dmp family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 2076 powershell.exe 576 powershell.exe 4008 powershell.exe 1632 powershell.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\Expensive 3.1 = "C:\\Users\\Admin\\AppData\\Roaming\\Expensive 3.1.exe" XClient.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 2076 powershell.exe 2076 powershell.exe 576 powershell.exe 576 powershell.exe 4008 powershell.exe 4008 powershell.exe 1632 powershell.exe 1632 powershell.exe 4432 XClient.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 4432 XClient.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 4008 powershell.exe Token: SeDebugPrivilege 1632 powershell.exe Token: SeDebugPrivilege 4432 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 4432 XClient.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
XClient.exedescription pid process target process PID 4432 wrote to memory of 2076 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 2076 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 576 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 576 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 4008 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 4008 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 1632 4432 XClient.exe powershell.exe PID 4432 wrote to memory of 1632 4432 XClient.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2076
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:576
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Expensive 3.1.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4008
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Expensive 3.1.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1632
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5627073ee3ca9676911bee35548eff2b8
SHA14c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA25685b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA5123c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
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Filesize
944B
MD51a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA19910190edfaccece1dfcc1d92e357772f5dae8f7
SHA2560ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA5125d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64
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Filesize
944B
MD5e47c3fa11e796c492a8388c946bf1636
SHA14a090378f0db26c6f019c9203f5b27f12fa865c7
SHA2564bb861850395dcc3bec4691e8b9f0fa733b8a2d568d460a9201d65250b12fee1
SHA5128d4af4eba3019cd060561f42cff11374eafe59da5e5ad677e41d0b9198b87d6d13706e760d13c70574ed1384993a1597f886d21fe6ecd0186379a1e93db30695
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Filesize
944B
MD5050567a067ffea4eb40fe2eefebdc1ee
SHA16e1fb2c7a7976e0724c532449e97722787a00fec
SHA2563952d5b543e5cb0cb84014f4ad9f5f1b7166f592d28640cbc3d914d0e6f41d2e
SHA512341ad71ef7e850b10e229666312e4bca87a0ed9fe25ba4b0ab65661d5a0efa855db0592153106da07134d8fc2c6c0e44709bf38183c9a574a1fa543189971259
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82