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Analysis
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max time kernel
152s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 00:09
Static task
static1
Behavioral task
behavioral1
Sample
c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe
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Size
228KB
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MD5
4bf07f18960aae907ece1d67797e0b8d
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SHA1
61398588408ee0c47b250c1f8b2bd76e64ba7aad
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SHA256
c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4
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SHA512
ab4c6f7e05559976abfc6c405ab3f323d2046d9e2bbd81d8240cfb0dd8194017ff35363aae8cfb0a56c4af0d479b2578a7b7c139284730fae7d3a06482a87c3a
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SSDEEP
6144:2mA3PFKs7aFwKWwalhrEqxF6snji81RUinKZHg/HF:2m6PhAmZIH+l
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kuubiu.exe -
Executes dropped EXE 1 IoCs
pid Process 1916 kuubiu.exe -
Loads dropped DLL 2 IoCs
pid Process 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /y" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /e" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /g" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /x" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /n" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /u" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /w" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /r" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /c" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /f" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /p" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /v" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /s" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /l" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /a" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /m" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /j" kuubiu.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /z" kuubiu.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /i" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /k" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /t" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /b" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /q" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /d" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /l" c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /h" kuubiu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuubiu = "C:\\Users\\Admin\\kuubiu.exe /o" kuubiu.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe 1916 kuubiu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 1916 kuubiu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1784 wrote to memory of 1916 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 28 PID 1784 wrote to memory of 1916 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 28 PID 1784 wrote to memory of 1916 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 28 PID 1784 wrote to memory of 1916 1784 c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe"C:\Users\Admin\AppData\Local\Temp\c256f78f654cf6e62e0c75d4551caf606d9ea08be6393f77d31c5b304b24f1d4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Users\Admin\kuubiu.exe"C:\Users\Admin\kuubiu.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD530bea2fad27df6cad16e1280933dd64e
SHA1f8c3351870fa172a2b619939f2c25c93b12e1b18
SHA2567b73f50172dda24db5534292e5e5dcce522982cf0d5b96eba78f50771eea1e1a
SHA51213936918df1c394fe22b8435318cd10aa512839b496ee0f9c955572c30defe2d3efe01d2cf5c660ea7b8b602f63f3bbe3a9a92d5d98b314ef8a54eed53a0e1d5
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Filesize
228KB
MD530bea2fad27df6cad16e1280933dd64e
SHA1f8c3351870fa172a2b619939f2c25c93b12e1b18
SHA2567b73f50172dda24db5534292e5e5dcce522982cf0d5b96eba78f50771eea1e1a
SHA51213936918df1c394fe22b8435318cd10aa512839b496ee0f9c955572c30defe2d3efe01d2cf5c660ea7b8b602f63f3bbe3a9a92d5d98b314ef8a54eed53a0e1d5
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Filesize
228KB
MD530bea2fad27df6cad16e1280933dd64e
SHA1f8c3351870fa172a2b619939f2c25c93b12e1b18
SHA2567b73f50172dda24db5534292e5e5dcce522982cf0d5b96eba78f50771eea1e1a
SHA51213936918df1c394fe22b8435318cd10aa512839b496ee0f9c955572c30defe2d3efe01d2cf5c660ea7b8b602f63f3bbe3a9a92d5d98b314ef8a54eed53a0e1d5
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Filesize
228KB
MD530bea2fad27df6cad16e1280933dd64e
SHA1f8c3351870fa172a2b619939f2c25c93b12e1b18
SHA2567b73f50172dda24db5534292e5e5dcce522982cf0d5b96eba78f50771eea1e1a
SHA51213936918df1c394fe22b8435318cd10aa512839b496ee0f9c955572c30defe2d3efe01d2cf5c660ea7b8b602f63f3bbe3a9a92d5d98b314ef8a54eed53a0e1d5