Analysis
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max time kernel
142s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
28-01-2022 17:21
Static task
static1
Behavioral task
behavioral1
Sample
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe
Resource
win10v2004-en-20220112
General
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Target
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe
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Size
700KB
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MD5
c60046cf4d9051f407395204164b7cb9
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SHA1
c2e18646c686d2c735c6dc91eb2b2379428cfebe
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SHA256
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455
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SHA512
bbd5d0d9b5d15a513f4e9de7583d3cf02bbdcb6a75e50d0e07bd273783f5630204e95925016fa25fe98154cd42ea9fa2eab2e1c16b6cb692beb96831beb08dd2
Malware Config
Signatures
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Vidar Stealer 3 IoCs
Processes:
resource yara_rule behavioral1/memory/3256-131-0x0000000002220000-0x00000000022C6000-memory.dmp family_vidar behavioral1/memory/3416-132-0x0000000000400000-0x00000000004A9000-memory.dmp family_vidar behavioral1/memory/3416-133-0x0000000000400000-0x00000000004A9000-memory.dmp family_vidar -
Downloads MZ/PE file
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Sets service image path in registry 2 TTPs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe -
Loads dropped DLL 2 IoCs
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exepid process 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exedescription pid process target process PID 3256 set thread context of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2292 timeout.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 2184 taskkill.exe -
Modifies data under HKEY_USERS 41 IoCs
Processes:
WaaSMedicAgent.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople WaaSMedicAgent.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs WaaSMedicAgent.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exepid process 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 2184 taskkill.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.execmd.exedescription pid process target process PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3256 wrote to memory of 3416 3256 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe PID 3416 wrote to memory of 2852 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe cmd.exe PID 3416 wrote to memory of 2852 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe cmd.exe PID 3416 wrote to memory of 2852 3416 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe cmd.exe PID 2852 wrote to memory of 2184 2852 cmd.exe taskkill.exe PID 2852 wrote to memory of 2184 2852 cmd.exe taskkill.exe PID 2852 wrote to memory of 2184 2852 cmd.exe taskkill.exe PID 2852 wrote to memory of 2292 2852 cmd.exe timeout.exe PID 2852 wrote to memory of 2292 2852 cmd.exe timeout.exe PID 2852 wrote to memory of 2292 2852 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe"C:\Users\Admin\AppData\Local\Temp\26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe"C:\Users\Admin\AppData\Local\Temp\26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe"2⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe" & del C:\ProgramData\*.dll & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im 26af7b38dbdfd437efb650a77c2ebdc1e3e8c31495c873f5dbba14d78275e455.exe /f4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\timeout.exetimeout /t 64⤵
- Delays execution with timeout.exe
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C:\Windows\System32\WaaSMedicAgent.exeC:\Windows\System32\WaaSMedicAgent.exe 5920a3def31862bbcf5214acd0e5db11 m1LUVBdGck63P0D30X+vRQ.0.1.0.0.01⤵
- Modifies data under HKEY_USERS
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\freebl3.dllMD5
ef2834ac4ee7d6724f255beaf527e635
SHA15be8c1e73a21b49f353c2ecfa4108e43a883cb7b
SHA256a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba
SHA512c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2
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C:\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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C:\ProgramData\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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C:\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\ProgramData\softokn3.dllMD5
a2ee53de9167bf0d6c019303b7ca84e5
SHA12a3c737fa1157e8483815e98b666408a18c0db42
SHA25643536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083
SHA51245b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8
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C:\ProgramData\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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memory/3256-130-0x0000000000780000-0x0000000000802000-memory.dmpFilesize
520KB
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memory/3256-131-0x0000000002220000-0x00000000022C6000-memory.dmpFilesize
664KB
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memory/3416-132-0x0000000000400000-0x00000000004A9000-memory.dmpFilesize
676KB
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memory/3416-133-0x0000000000400000-0x00000000004A9000-memory.dmpFilesize
676KB