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Analysis
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max time kernel
152s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/12/2022, 02:48
Static task
static1
Behavioral task
behavioral1
Sample
20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe
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Size
320KB
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MD5
45143b5cbfac2ae07a8141c131d174cb
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SHA1
cc9737f24163d9113b6941513d14fc49a2bad178
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SHA256
20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5
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SHA512
a1b828abc6b60757052fd847e27bd753acc38b9e0f51990612675c3a1f93d4ec2bd7bc7e2fe4bae9cc8699d56ee05b65e03530a5d343383cab87bdc4d721bff1
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SSDEEP
6144:0tpYwn/ze9c0MCQ8rOHnB2gXr2i+y6VPuGrtzcSX6tzLDTH5YfJpf2ru9c9TKHUW:EZLdCQ8rKTH5YfJpf2ru9c9TK0sVCWpT
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" 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" laimuj.exe -
Executes dropped EXE 1 IoCs
pid Process 1740 laimuj.exe -
Loads dropped DLL 2 IoCs
pid Process 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.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\laimuj = "C:\\Users\\Admin\\laimuj.exe /o" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /a" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /n" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /d" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /f" laimuj.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /h" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /v" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /j" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /g" 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /c" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /w" laimuj.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /r" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /u" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /k" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /i" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /z" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /q" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /s" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /l" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /g" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /b" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /p" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /e" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /y" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /x" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /m" laimuj.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\laimuj = "C:\\Users\\Admin\\laimuj.exe /t" laimuj.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 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe 1740 laimuj.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 1740 laimuj.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1032 wrote to memory of 1740 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 28 PID 1032 wrote to memory of 1740 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 28 PID 1032 wrote to memory of 1740 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 28 PID 1032 wrote to memory of 1740 1032 20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.exe"C:\Users\Admin\AppData\Local\Temp\20431e7833a5d6ce1212dc588249ef58223fe3b01b5b0160c528bcb2967e7cb5.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:1032 -
C:\Users\Admin\laimuj.exe"C:\Users\Admin\laimuj.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:1740
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
320KB
MD53effc45b00b3fa220c8aa02f35c1dfbf
SHA1458989fedeb609904bf1ad12f0cc16358c4d670c
SHA25634e507f14b0627d049567f2c63aa633e8f3501a954cf82422916df912e126b6a
SHA51218624a45fa7b45a3775c4bd2bb750f85c1ff9863c1708ab6bac20dc67d13bca0ed77a043908be8996e1c736cd3b5324525a77cd8cc29e124011bc4cdb90bdb52
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Filesize
320KB
MD53effc45b00b3fa220c8aa02f35c1dfbf
SHA1458989fedeb609904bf1ad12f0cc16358c4d670c
SHA25634e507f14b0627d049567f2c63aa633e8f3501a954cf82422916df912e126b6a
SHA51218624a45fa7b45a3775c4bd2bb750f85c1ff9863c1708ab6bac20dc67d13bca0ed77a043908be8996e1c736cd3b5324525a77cd8cc29e124011bc4cdb90bdb52
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Filesize
320KB
MD53effc45b00b3fa220c8aa02f35c1dfbf
SHA1458989fedeb609904bf1ad12f0cc16358c4d670c
SHA25634e507f14b0627d049567f2c63aa633e8f3501a954cf82422916df912e126b6a
SHA51218624a45fa7b45a3775c4bd2bb750f85c1ff9863c1708ab6bac20dc67d13bca0ed77a043908be8996e1c736cd3b5324525a77cd8cc29e124011bc4cdb90bdb52
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Filesize
320KB
MD53effc45b00b3fa220c8aa02f35c1dfbf
SHA1458989fedeb609904bf1ad12f0cc16358c4d670c
SHA25634e507f14b0627d049567f2c63aa633e8f3501a954cf82422916df912e126b6a
SHA51218624a45fa7b45a3775c4bd2bb750f85c1ff9863c1708ab6bac20dc67d13bca0ed77a043908be8996e1c736cd3b5324525a77cd8cc29e124011bc4cdb90bdb52