Analysis
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max time kernel
152s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/10/2022, 16:02
Static task
static1
Behavioral task
behavioral1
Sample
5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll
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Size
26KB
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MD5
91ec4b48a9b45aa4fb7eae3fbb9c3fd7
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SHA1
858a3d8dbbda396096cfc59e504251fab635b50f
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SHA256
5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1
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SHA512
2924087ac9293079685e8c25cade3004e49dffc3417dc8a9db90956610f6af24daf871e969be508de99e7270be631ebbcc47734c5f3982cba47bf2285c6ae6ee
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SSDEEP
768:vdhooxnDetbFX6klaMkATD/+O/0FUFjC/L:lxDetpqs3kPvkjC/L
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 1588 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\oficx.dll rundll32.exe File opened for modification C:\Windows\oficx.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} = "5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll,1293806123,-1540186243,-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 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe 1588 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3128 wrote to memory of 2840 3128 rundll32.exe 78 PID 3128 wrote to memory of 2840 3128 rundll32.exe 78 PID 3128 wrote to memory of 2840 3128 rundll32.exe 78 PID 2840 wrote to memory of 1588 2840 rundll32.exe 79 PID 2840 wrote to memory of 1588 2840 rundll32.exe 79 PID 2840 wrote to memory of 1588 2840 rundll32.exe 79
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3128 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\oficx.dll",_RunAs@163⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1588
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
26KB
MD591ec4b48a9b45aa4fb7eae3fbb9c3fd7
SHA1858a3d8dbbda396096cfc59e504251fab635b50f
SHA2565dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1
SHA5122924087ac9293079685e8c25cade3004e49dffc3417dc8a9db90956610f6af24daf871e969be508de99e7270be631ebbcc47734c5f3982cba47bf2285c6ae6ee
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Filesize
26KB
MD591ec4b48a9b45aa4fb7eae3fbb9c3fd7
SHA1858a3d8dbbda396096cfc59e504251fab635b50f
SHA2565dbbdeb1d791d3e6596c4c5c2bf4e59593baad46201a4c1663b8b97037ef08a1
SHA5122924087ac9293079685e8c25cade3004e49dffc3417dc8a9db90956610f6af24daf871e969be508de99e7270be631ebbcc47734c5f3982cba47bf2285c6ae6ee