Analysis
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max time kernel
165s -
max time network
208s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2022 12:14
Static task
static1
Behavioral task
behavioral1
Sample
e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe
Resource
win10v2004-20221111-en
General
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Target
e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe
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Size
20KB
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MD5
ac3479343cbe5dec3ac928994a79bce3
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SHA1
9feb000023870c04176018865e569bd9335d09c7
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SHA256
e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab
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SHA512
803430033c1c779c7b9c8b2073b96f65b13020d9c00e8b128e146d61821279d68f3d3092452ea96522b4f679d91dbdf5d1df3b195508da6b892e5e9cb536f57f
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SSDEEP
384:otLDJjLznoN2zN2mN2J8l6kWLQsrev6+QcbLTCibs9WdC3kUpgO:yVXS2J202iTmW6RH9L3kUpl
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsAPI = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe" e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe -
Drops autorun.inf file 1 TTPs 2 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created C:\autorun.inf e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe File opened for modification C:\autorun.inf e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 648 e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 648 wrote to memory of 3248 648 e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe 95 PID 648 wrote to memory of 3248 648 e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe 95 PID 648 wrote to memory of 3248 648 e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe"C:\Users\Admin\AppData\Local\Temp\e4481e237e5e939eb7ac0c27338affd890e1004efd8d16c90e6b63de717621ab.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops autorun.inf file
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:648 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\Documents\s4c.vbs"2⤵PID:3248
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
257B
MD5e2df14ad09c8d6812f1deabfa3793b37
SHA186fb60c1e8830836248660bf67bf2737814f43fa
SHA256e7905fc5bb651475ade5f726e90d38f34a18a490fa538f0eed5715e845cc2981
SHA512f17e3a8aef988129530fb4090700bff26ac3e45b07f4ba23a784efd7c8f39cf9c16ff5ecb9e1e786d00d2cda12887c0b1db2403a70e3c0e235276c296607eefb