Analysis
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max time kernel
144s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
11-10-2022 21:02
Static task
static1
Behavioral task
behavioral1
Sample
d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe
Resource
win10v2004-20220812-en
General
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Target
d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe
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Size
164KB
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MD5
5467af014900c650fb12c3f93d00350b
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SHA1
bfd77d10945ed1f76b1943f2bf1408045a869438
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SHA256
d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14
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SHA512
bb1c356aed001fcc3decc72f8a32928aa3812dd6f6e616874d9a9e9ac49bce7f134affd4cbcf3d11cad9d54cb83cfccc83a90f759e7f0a5482771bce8578cc32
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SSDEEP
3072:Nq60E/DS+/Y9wVMNtydw5D+GgE6BEfupLj9ks:hn/YWVMNtC0D+Q6qfoj9Z
Malware Config
Signatures
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Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\M: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\J: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\H: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\G: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\W: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\N: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\Q: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\L: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\F: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\T: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\R: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\U: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\O: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\K: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\Z: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\Y: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\S: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\P: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\I: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\E: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\X: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened (read-only) \??\V: d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe -
Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe File opened for modification C:\autorun.inf d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.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 2000 1508 WerFault.exe 11 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1508 d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1508 wrote to memory of 2000 1508 d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe 26 PID 1508 wrote to memory of 2000 1508 d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe 26 PID 1508 wrote to memory of 2000 1508 d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe 26 PID 1508 wrote to memory of 2000 1508 d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe"C:\Users\Admin\AppData\Local\Temp\d61f283d8c3097f4eeed3eac0b94b84d551c7539a75f5f53cd18dd7847974f14.exe"1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1508 -s 5402⤵
- Program crash
PID:2000
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