Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-10-2022 11:53
Static task
static1
Behavioral task
behavioral1
Sample
dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll
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Size
26KB
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MD5
a3256bd51897a2ba610055d9f128e0eb
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SHA1
d5507e44aef190976d10b470fe73122eb25ad049
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SHA256
dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b
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SHA512
38ae22333583442a24f197c4ba15e9b6ffec193f27ba57d1f4ac8571b40cd31670c0f5b1ab18471d426827ceddd79633fa654c2bffde216e67808282d3655b76
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SSDEEP
768:7hnuPC4n9awJSMcazGFCcxPgSV+XelAYUgwMZsL:7cP5n9awNuRp+X2UgGL
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 3112 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process 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\{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} = "dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll,1297950600,-1633019408,-1814625877" 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe 3112 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2548 wrote to memory of 3132 2548 rundll32.exe 83 PID 2548 wrote to memory of 3132 2548 rundll32.exe 83 PID 2548 wrote to memory of 3132 2548 rundll32.exe 83 PID 3132 wrote to memory of 3112 3132 rundll32.exe 84 PID 3132 wrote to memory of 3112 3132 rundll32.exe 84 PID 3132 wrote to memory of 3112 3132 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3132 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\xulei8.dll",_RunAs@163⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3112
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
26KB
MD5a3256bd51897a2ba610055d9f128e0eb
SHA1d5507e44aef190976d10b470fe73122eb25ad049
SHA256dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b
SHA51238ae22333583442a24f197c4ba15e9b6ffec193f27ba57d1f4ac8571b40cd31670c0f5b1ab18471d426827ceddd79633fa654c2bffde216e67808282d3655b76
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Filesize
26KB
MD5a3256bd51897a2ba610055d9f128e0eb
SHA1d5507e44aef190976d10b470fe73122eb25ad049
SHA256dd266f19fb4a9cd6c6425aa0082b8ceb31aee4fb4b2356a6343e7631ec83287b
SHA51238ae22333583442a24f197c4ba15e9b6ffec193f27ba57d1f4ac8571b40cd31670c0f5b1ab18471d426827ceddd79633fa654c2bffde216e67808282d3655b76