Analysis
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max time kernel
94s -
max time network
290s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
07/03/2025, 01:23
Static task
static1
Behavioral task
behavioral1
Sample
2663738939987542452672728827262.exe
Resource
win7-20240903-en
General
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Target
2663738939987542452672728827262.exe
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Size
108KB
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MD5
38dadd03bc276632796f2d3a637c8a07
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SHA1
d057d734977b77ac1879d0a4ae9c82eb86c706ff
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SHA256
f5f2f8272a0c271071fcbcb6a8c50503ff8fc6d1f26ac717ddf8563ad3ffb57f
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SHA512
a71805792b49b363d8e3e5bfe930c2cdf502ad8f2dbf25e8054ba4b21b21324db41d39fb4fb3585a0aa4337693bd679881d6181046c29ab7de4652cc33b0283b
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SSDEEP
3072:4Zq6LHp8plAKG/el4ZneM+3M+pRW6Ql8/e:yPHgyKGhZeM+3M+y8
Malware Config
Signatures
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Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/1620-1348-0x0000000000520000-0x0000000000548000-memory.dmp family_xworm -
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 3952 created 3364 3952 2663738939987542452672728827262.exe 56 -
Xworm family
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Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: RegAsm.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3952 set thread context of 1620 3952 2663738939987542452672728827262.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 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 2663738939987542452672728827262.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000_Classes\Local Settings RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3952 2663738939987542452672728827262.exe 3952 2663738939987542452672728827262.exe 3952 2663738939987542452672728827262.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 3952 2663738939987542452672728827262.exe Token: SeDebugPrivilege 3952 2663738939987542452672728827262.exe Token: SeDebugPrivilege 1620 RegAsm.exe Token: SeManageVolumePrivilege 1620 RegAsm.exe Token: SeManageVolumePrivilege 1620 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96 PID 3952 wrote to memory of 1620 3952 2663738939987542452672728827262.exe 96
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3364
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C:\Users\Admin\AppData\Local\Temp\2663738939987542452672728827262.exe"C:\Users\Admin\AppData\Local\Temp\2663738939987542452672728827262.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3952
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1620
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
158KB
MD5f2d2c28de02ecc862144b443e067f201
SHA1ee6ece89afa001e28f5631c287e5943dc9fedbac
SHA25652044ddee542da9320cacfcfea095ed643fc6f305d02e5a97473a9e3746336a6
SHA512b8efe74a1b056f01a257fdec9c284c3e09ae494175dc8ffb4c724a106b76c39541e394d73768eca4e20d90f4657e298a549cc64595c90e7cab4e7bbd85c03aea