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Resubmissions
02/09/2024, 04:11
240902-erx5ws1ekl 1031/08/2024, 15:44
240831-s6y8dssajf 1031/08/2024, 15:41
240831-s4ytva1gph 1031/08/2024, 15:35
240831-s1fh4a1fjk 10Analysis
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max time kernel
433s -
max time network
441s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
31/08/2024, 15:41
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win11-20240802-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win7-20240705-en
Behavioral task
behavioral3
Sample
XClient.exe
Resource
win10-20240404-en
Behavioral task
behavioral4
Sample
XClient.exe
Resource
win10v2004-20240802-en
General
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Target
XClient.exe
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Size
84KB
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MD5
13f12b20731a141144d59aef56828f78
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SHA1
2aef63a0f584914b022ea7d039bd431fa99520b3
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SHA256
28041fc75ea0dd89b4cfa6338ff7dd3ef053bf5e49eca14f6d8e4acc003c9c6b
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SHA512
19f9aeb3ceed2cd0ab93e0f449174de9f07afba41f38c620a1480b052c18ce898d52b9c90f3cfe83611064b4b6cf7444041a4b1d52de214811436975802bcbaa
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SSDEEP
1536:E4VFkamGxes+ESPmWnz5fH0hgThsipZR8beJKNlG8V6f7/7zOD5gfRJoBP:E4VNxedPmWt04/UbeSly7/vOD5c4V
Malware Config
Extracted
xworm
178.215.236.68:7000
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install_file
USB.exe
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule behavioral5/memory/1972-1-0x00000000005A0000-0x00000000005BC000-memory.dmp family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 3144 powershell.exe 4656 powershell.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Delays execution with timeout.exe 1 IoCs
pid Process 1052 timeout.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 3144 powershell.exe 3144 powershell.exe 4656 powershell.exe 4656 powershell.exe 1972 XClient.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1972 XClient.exe Token: SeDebugPrivilege 3144 powershell.exe Token: SeDebugPrivilege 4656 powershell.exe Token: SeDebugPrivilege 1972 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1972 XClient.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1972 wrote to memory of 3144 1972 XClient.exe 84 PID 1972 wrote to memory of 3144 1972 XClient.exe 84 PID 1972 wrote to memory of 4656 1972 XClient.exe 86 PID 1972 wrote to memory of 4656 1972 XClient.exe 86 PID 1972 wrote to memory of 2472 1972 XClient.exe 88 PID 1972 wrote to memory of 2472 1972 XClient.exe 88 PID 2472 wrote to memory of 1052 2472 cmd.exe 90 PID 2472 wrote to memory of 1052 2472 cmd.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972 -
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:3144
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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:4656
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp250E.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:2472 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:1052
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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
MD52e8eb51096d6f6781456fef7df731d97
SHA1ec2aaf851a618fb43c3d040a13a71997c25bda43
SHA25696bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864
SHA5120a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
159B
MD5e8a96f5a32cf6ffc0b7af511951a5c31
SHA14140d75f650564428ef7072965bee0b6acba8df6
SHA256ded13ba93f4082c63e7d4c2b90cfdd1303606076d55c4339eb635e886dba779f
SHA512691d6e0e3a034bc5ac8a945ae6b39779c25adf36104de08eb92cc51162db6dd0921d3dd3d632f77fdba38f3b7678e1bd5bc0cd317eb22b037e276fb2befb8641