Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
16-06-2024 11:05
Static task
static1
Behavioral task
behavioral1
Sample
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe
Resource
win7-20231129-en
General
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Target
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe
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Size
15.8MB
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MD5
f192b4e9cf07850041e19ea07cd984e3
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SHA1
061a917e9691648e00a7f91ff82ae1c0e8da248b
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SHA256
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7
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SHA512
19b9c0c214534d23e134fb29b6b1091ecb8c83f64df1e28219748a61d96bbef31141bb0e8237a5a96ac8bed6c233da6194c719f2c1470155d0a8ad3c194a2f5a
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SSDEEP
393216:bZ81TpBxAxlcciQ2RRkaZECMV8ElgSgq4nZ:bpB2jk3Vvlh6
Malware Config
Extracted
xworm
192.168.1.8:7000
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Install_directory
%AppData%
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install_file
XClienamrt.exe
Extracted
njrat
im523
HacKed
192.168.1.8:7788
66d1b8410b347e24d21ce9ad910a4de7
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reg_key
66d1b8410b347e24d21ce9ad910a4de7
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splitter
|'|'|
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\XClientamor.exe family_xworm behavioral1/memory/2152-14-0x0000000000280000-0x00000000002C6000-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 876 powershell.exe 1936 powershell.exe 488 powershell.exe 2040 powershell.exe -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 1664 netsh.exe -
Drops startup file 6 IoCs
Processes:
WScript.exewscript.exeXClientamor.exeServer.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\myronworm.vbs WScript.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\myronworm.vbs wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClienamrt.lnk XClientamor.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClienamrt.lnk XClientamor.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\66d1b8410b347e24d21ce9ad910a4de7.exe Server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\66d1b8410b347e24d21ce9ad910a4de7.exe Server.exe -
Executes dropped EXE 4 IoCs
Processes:
Outputbinded.exeXClientamor.exeXworm V5.6.exeServer.exepid process 1580 Outputbinded.exe 2152 XClientamor.exe 2552 Xworm V5.6.exe 2872 Server.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
WScript.exewscript.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\myronworm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\myronworm.vbs\"" WScript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\myronworm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\myronworm.vbs\"" WScript.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\myronworm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\myronworm.vbs\"" wscript.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\myronworm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\myronworm.vbs\"" wscript.exe -
Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
Processes:
Server.exedescription ioc process File opened for modification F:\autorun.inf Server.exe File created C:\autorun.inf Server.exe File opened for modification C:\autorun.inf Server.exe File created D:\autorun.inf Server.exe File created F:\autorun.inf Server.exe -
Command and Scripting Interpreter: JavaScript 1 TTPs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeServer.exepid process 876 powershell.exe 1936 powershell.exe 488 powershell.exe 2040 powershell.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe 2872 Server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Server.exepid process 2872 Server.exe -
Suspicious use of AdjustPrivilegeToken 41 IoCs
Processes:
XClientamor.exepowershell.exepowershell.exepowershell.exepowershell.exeServer.exedescription pid process Token: SeDebugPrivilege 2152 XClientamor.exe Token: SeDebugPrivilege 876 powershell.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 488 powershell.exe Token: SeDebugPrivilege 2040 powershell.exe Token: SeDebugPrivilege 2152 XClientamor.exe Token: SeDebugPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe Token: 33 2872 Server.exe Token: SeIncBasePriorityPrivilege 2872 Server.exe -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exeOutputbinded.exeWScript.exeXClientamor.exeXworm V5.6.exeServer.exedescription pid process target process PID 2344 wrote to memory of 1580 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Outputbinded.exe PID 2344 wrote to memory of 1580 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Outputbinded.exe PID 2344 wrote to memory of 1580 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Outputbinded.exe PID 1580 wrote to memory of 2152 1580 Outputbinded.exe XClientamor.exe PID 1580 wrote to memory of 2152 1580 Outputbinded.exe XClientamor.exe PID 1580 wrote to memory of 2152 1580 Outputbinded.exe XClientamor.exe PID 2344 wrote to memory of 2552 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Xworm V5.6.exe PID 2344 wrote to memory of 2552 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Xworm V5.6.exe PID 2344 wrote to memory of 2552 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Xworm V5.6.exe PID 2344 wrote to memory of 2452 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2344 wrote to memory of 2452 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2344 wrote to memory of 2452 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2344 wrote to memory of 2872 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Server.exe PID 2344 wrote to memory of 2872 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Server.exe PID 2344 wrote to memory of 2872 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Server.exe PID 2344 wrote to memory of 2872 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe Server.exe PID 2344 wrote to memory of 2612 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2344 wrote to memory of 2612 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2344 wrote to memory of 2612 2344 515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe WScript.exe PID 2612 wrote to memory of 2808 2612 WScript.exe wscript.exe PID 2612 wrote to memory of 2808 2612 WScript.exe wscript.exe PID 2612 wrote to memory of 2808 2612 WScript.exe wscript.exe PID 2152 wrote to memory of 876 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 876 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 876 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 1936 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 1936 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 1936 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 488 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 488 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 488 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 2040 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 2040 2152 XClientamor.exe powershell.exe PID 2152 wrote to memory of 2040 2152 XClientamor.exe powershell.exe PID 2552 wrote to memory of 2108 2552 Xworm V5.6.exe WerFault.exe PID 2552 wrote to memory of 2108 2552 Xworm V5.6.exe WerFault.exe PID 2552 wrote to memory of 2108 2552 Xworm V5.6.exe WerFault.exe PID 2872 wrote to memory of 1664 2872 Server.exe netsh.exe PID 2872 wrote to memory of 1664 2872 Server.exe netsh.exe PID 2872 wrote to memory of 1664 2872 Server.exe netsh.exe PID 2872 wrote to memory of 1664 2872 Server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe"C:\Users\Admin\AppData\Local\Temp\515b7bd886b37d24fa02bb3d9b1ecf31f887bb46834787771722236d40c565c7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Users\Admin\AppData\Roaming\Outputbinded.exe"C:\Users\Admin\AppData\Roaming\Outputbinded.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1580 -
C:\Users\Admin\AppData\Roaming\XClientamor.exe"C:\Users\Admin\AppData\Roaming\XClientamor.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152 -
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\XClientamor.exe'4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:876
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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 'XClientamor.exe'4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1936
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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\XClienamrt.exe'4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:488
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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 'XClienamrt.exe'4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2040
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C:\Users\Admin\AppData\Roaming\Xworm V5.6.exe"C:\Users\Admin\AppData\Roaming\Xworm V5.6.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2552 -s 7283⤵PID:2108
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\amr.js"2⤵PID:2452
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C:\Users\Admin\AppData\Roaming\Server.exe"C:\Users\Admin\AppData\Roaming\Server.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Server.exe" "Server.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:1664
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\myronworm.vbs"2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Local\Temp\myronworm.vbs"3⤵
- Drops startup file
- Adds Run key to start application
PID:2808
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\X9EUZ07LJM15L18HIIIP.temp
Filesize7KB
MD5c20811784d7a8026a468afaadaff731c
SHA10b962583e93e8efd3f25595b16ab520f33c97606
SHA256a3b1bcd789ab0b3bcb57cf4cb0de2e95f12948e613ee91139caf71697d75445a
SHA512b960ca29f58f791f562d053ba844291efe599de2cef063a021463b9c156fa1929cb2f7d648437354ae2a9eb2201dbe0147c5baf2d6321c484926f7d134c2a9e3
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Filesize
686KB
MD55d692aa620cbca52d380150edcf51377
SHA1bfaaf5ea9910324e3d9f3d95c5a8ca4d94924d86
SHA25665302dc08b26b59a91943d82c7c5b79a017164bd7623576cbefcb9851098bf3c
SHA5120c3e90f6e169a9876f4095774d6fec1b76bc0e23c00b254610ed58f4238bcd0547c7f8974d171587783659752c415267cb4d2499f1a6ac18ed7760f78103bc67
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Filesize
242KB
MD52355cb5fc18f1e7a0cffa302d1bfebff
SHA13703ec0c5299c2861d05f92b3cf16191b982d38a
SHA256d4550f31de4c62eb2012f9bb984a00ab0e8d865098322dcd4d5db94b7107b986
SHA512256700d2605dc4bbdac8b72470b2e24992da10572b564a478553bd7d5bea5e91f488ae46fe5d42320a558d6d9c3b43134c54998c40a4c690e29e5dd73bae3cab
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Filesize
260KB
MD59b839a50e55b18129f81629c61f912f7
SHA171e1feea8c12bd8b2501bf065d56fef8eae0517c
SHA25692a21332ad995d61804e80d50abd6571a6faf3932ad574ff23939e84362485ae
SHA512abcb038106c8c771c39a66f1f79885619a0a031a567d2a84acfb848545c8cd12dc1e64baa14f1151229de2abaf68fc023f6455cb47d6b29ec90832d0f2de9971
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Filesize
14.9MB
MD556ccb739926a725e78a7acf9af52c4bb
SHA15b01b90137871c3c8f0d04f510c4d56b23932cbc
SHA25690f58865f265722ab007abb25074b3fc4916e927402552c6be17ef9afac96405
SHA5122fee662bc4a1a36ce7328b23f991fa4a383b628839e403d6eb6a9533084b17699a6c939509867a86e803aafef2f9def98fa9305b576dad754aa7f599920c19a1
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Filesize
3KB
MD5e58364ddc8daeac92739f0b2c7547f9c
SHA1ae2aa6f9cb8f4627d83c6158571689d596294cfe
SHA256d03047394e431fbc6d68c74d2ac5348801ff1c4d7d3e12b1e3d873474c3cdf30
SHA512d3e710f1c70883d5576ecdfec705c8edc671c533ebd353048c02d3bc8d9499a18d62c1cee8532d9c9ce325ca4966e53b40322e428cc0b20070971b974f8a673b
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Filesize
9KB
MD5120aaed75e85209923d8fd9f5718d3d5
SHA1ea7d8bdceeb399c221743089cb0484863775e31d
SHA25630c959f6c7c85698d06513048ca92f5615260fb877bb17be0baa24b164575409
SHA512deed7f6cc041e2df572ee921f6ee31f332ccfc248e365a9f586ac1fb5a9864e68b7917632544f5fb33b48289d1607017d95cac281d0908671f5469fe84b235a8
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e