Analysis
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max time kernel
169s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01-12-2022 23:23
Static task
static1
Behavioral task
behavioral1
Sample
5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe
Resource
win10v2004-20220812-en
General
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Target
5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe
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Size
260KB
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MD5
55047507539c76cb78077af962c071b0
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SHA1
d20f11aaf898201c8d8d617a9ef45edfd613d077
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SHA256
5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d
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SHA512
800a5f41539bf705084d41282e24fcc4f4e2af282b9ad4d6865637378dd7ac0372d2be558be9bca233cd6f46eaf45c4b5edd7d4d448e051f4eb2f11a69b5d619
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SSDEEP
6144:ntfG12nqw7EB1XbtFZjkeQYsJlW+U9kzMv7hornBshW63:ntgPw7EvXbt/WTzK7Iny
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" 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" dljac.exe -
Executes dropped EXE 1 IoCs
pid Process 2044 dljac.exe -
Loads dropped DLL 2 IoCs
pid Process 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\dljac = "C:\\Users\\Admin\\dljac.exe /p" 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ dljac.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\dljac = "C:\\Users\\Admin\\dljac.exe /b" dljac.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum dljac.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 dljac.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 1388 1668 WerFault.exe 14 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 2044 dljac.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 2044 dljac.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1668 wrote to memory of 2044 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 28 PID 1668 wrote to memory of 2044 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 28 PID 1668 wrote to memory of 2044 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 28 PID 1668 wrote to memory of 2044 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 28 PID 1668 wrote to memory of 1388 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 29 PID 1668 wrote to memory of 1388 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 29 PID 1668 wrote to memory of 1388 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 29 PID 1668 wrote to memory of 1388 1668 5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe"C:\Users\Admin\AppData\Local\Temp\5d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Users\Admin\dljac.exe"C:\Users\Admin\dljac.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2044
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 3962⤵
- Program crash
PID:1388
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
260KB
MD555047507539c76cb78077af962c071b0
SHA1d20f11aaf898201c8d8d617a9ef45edfd613d077
SHA2565d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d
SHA512800a5f41539bf705084d41282e24fcc4f4e2af282b9ad4d6865637378dd7ac0372d2be558be9bca233cd6f46eaf45c4b5edd7d4d448e051f4eb2f11a69b5d619
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Filesize
260KB
MD555047507539c76cb78077af962c071b0
SHA1d20f11aaf898201c8d8d617a9ef45edfd613d077
SHA2565d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d
SHA512800a5f41539bf705084d41282e24fcc4f4e2af282b9ad4d6865637378dd7ac0372d2be558be9bca233cd6f46eaf45c4b5edd7d4d448e051f4eb2f11a69b5d619
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Filesize
260KB
MD555047507539c76cb78077af962c071b0
SHA1d20f11aaf898201c8d8d617a9ef45edfd613d077
SHA2565d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d
SHA512800a5f41539bf705084d41282e24fcc4f4e2af282b9ad4d6865637378dd7ac0372d2be558be9bca233cd6f46eaf45c4b5edd7d4d448e051f4eb2f11a69b5d619
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Filesize
260KB
MD555047507539c76cb78077af962c071b0
SHA1d20f11aaf898201c8d8d617a9ef45edfd613d077
SHA2565d39470a7b8e1aa6c0691dbc929078a0810da34ee955f1869a309ca9840b948d
SHA512800a5f41539bf705084d41282e24fcc4f4e2af282b9ad4d6865637378dd7ac0372d2be558be9bca233cd6f46eaf45c4b5edd7d4d448e051f4eb2f11a69b5d619