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Analysis
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max time kernel
259s -
max time network
262s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 20:59
Static task
static1
Behavioral task
behavioral1
Sample
e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll
Resource
win10v2004-20221111-en
windows10-2004-x64
General
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Target
e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll
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Size
30KB
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MD5
e9634edf2ca4685726cef317177a3f38
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SHA1
5502ea9bdfb7e74816ee7c4f72eba128af6112cd
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SHA256
e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d
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SHA512
db3b082e2bf62d32b40d0eef7f4cf9438f363f2731225cdbcd53c8ebd13cb89bb14c6e636b8bde19bb819fe7aa637da1cd1190d6af76431228df7aa8c0aae054
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SSDEEP
768:F1wZpIsQqtoKIy/AgVII0a13YVbJA1CY2lYz9j0KY/mVyL:FujQ89AC1t13ib20lYzaqyL
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 968 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\lua.wkl rundll32.exe File opened for modification C:\Windows\lua.wkl rundll32.exe File created C:\Windows\xulei8.dll rundll32.exe File opened for modification C:\Windows\xulei8.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll,1298283306,-2036409223,-352895392" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe 968 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 260 wrote to memory of 4452 260 rundll32.exe 81 PID 260 wrote to memory of 4452 260 rundll32.exe 81 PID 260 wrote to memory of 4452 260 rundll32.exe 81 PID 4452 wrote to memory of 968 4452 rundll32.exe 82 PID 4452 wrote to memory of 968 4452 rundll32.exe 82 PID 4452 wrote to memory of 968 4452 rundll32.exe 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:260 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4452 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\xulei8.dll",_RunAs@163⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:968
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
30KB
MD5e9634edf2ca4685726cef317177a3f38
SHA15502ea9bdfb7e74816ee7c4f72eba128af6112cd
SHA256e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d
SHA512db3b082e2bf62d32b40d0eef7f4cf9438f363f2731225cdbcd53c8ebd13cb89bb14c6e636b8bde19bb819fe7aa637da1cd1190d6af76431228df7aa8c0aae054
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Filesize
30KB
MD5e9634edf2ca4685726cef317177a3f38
SHA15502ea9bdfb7e74816ee7c4f72eba128af6112cd
SHA256e4c1243a736a0fedb9d80126e88e4821feab0a314915df479b745a34c554358d
SHA512db3b082e2bf62d32b40d0eef7f4cf9438f363f2731225cdbcd53c8ebd13cb89bb14c6e636b8bde19bb819fe7aa637da1cd1190d6af76431228df7aa8c0aae054