Analysis
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max time kernel
39s -
max time network
110s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
30-12-2023 23:53
Static task
static1
Behavioral task
behavioral1
Sample
20b54556a3a3101e060d2d04621b33d5.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
20b54556a3a3101e060d2d04621b33d5.exe
Resource
win10v2004-20231222-en
General
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Target
20b54556a3a3101e060d2d04621b33d5.exe
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Size
157KB
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MD5
20b54556a3a3101e060d2d04621b33d5
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SHA1
a18f78bc460e15ce2f98fae4423d4856728a3a31
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SHA256
56c1a28f84e286c53178a2d631a1df4409bdb5fa0c0452a244ea9defc4d6d2ad
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SHA512
59ce38cd81a14d9a76e671dc6685702a458d2dd6021ae95f18e123782e79c0ba31356426f694b3ee7c31e16953f52afc4091aeef19367a3ef86d2b857ad5ff0b
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SSDEEP
3072:waFoV8RSJAm1gJ5LHRpL48eSURN5QCwJ9OcMkEeIhvryajU0of3Qw4+:waKAm1gfHR5nenTcXIH1w4
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3436 Explorer.EXE -
Registers COM server for autorun 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32 20b54556a3a3101e060d2d04621b33d5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both" 20b54556a3a3101e060d2d04621b33d5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-3803511929-1339359695-2191195476-1000\\$4732b980f267194ec6fce0414fbbade7\\n." 20b54556a3a3101e060d2d04621b33d5.exe -
Unexpected DNS network traffic destination 5 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 Destination IP 83.133.123.20 -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\clsid 20b54556a3a3101e060d2d04621b33d5.exe Key created \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} 20b54556a3a3101e060d2d04621b33d5.exe Key created \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32 20b54556a3a3101e060d2d04621b33d5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ThreadingModel = "Both" 20b54556a3a3101e060d2d04621b33d5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000_Classes\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32\ = "C:\\$Recycle.Bin\\S-1-5-21-3803511929-1339359695-2191195476-1000\\$4732b980f267194ec6fce0414fbbade7\\n." 20b54556a3a3101e060d2d04621b33d5.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe 4492 20b54556a3a3101e060d2d04621b33d5.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4492 20b54556a3a3101e060d2d04621b33d5.exe Token: SeDebugPrivilege 4492 20b54556a3a3101e060d2d04621b33d5.exe Token: SeDebugPrivilege 4492 20b54556a3a3101e060d2d04621b33d5.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4492 wrote to memory of 3436 4492 20b54556a3a3101e060d2d04621b33d5.exe 47 PID 4492 wrote to memory of 3436 4492 20b54556a3a3101e060d2d04621b33d5.exe 47
Processes
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C:\Users\Admin\AppData\Local\Temp\20b54556a3a3101e060d2d04621b33d5.exe"C:\Users\Admin\AppData\Local\Temp\20b54556a3a3101e060d2d04621b33d5.exe"1⤵
- Registers COM server for autorun
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4492
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Executes dropped EXE
PID:3436