Analysis
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max time kernel
150s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
18-05-2024 08:22
Static task
static1
Behavioral task
behavioral1
Sample
558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe
Resource
win10v2004-20240508-en
General
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Target
558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe
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Size
4.1MB
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MD5
4859a99b80e9ad16171b6847d5c4b5b1
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SHA1
d5c41a9f040d85489e34a6904d7147fdb753a41c
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SHA256
558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf
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SHA512
afd1d9c804174f173798eff312653b5303166b891db98ca2d182e075f75ea3ecb3c4ecfd17ff8a354f2d4aebe25838c78502191a6685f2cfbf9c7cd62aa456e8
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SSDEEP
98304:YcO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxW:YcO3d2wQ4Q8FyLwnXJ+AxvtU75c1jsE
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/2540-2-0x0000000004BD0000-0x00000000054BB000-memory.dmp family_glupteba behavioral1/memory/2540-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2540-128-0x0000000004BD0000-0x00000000054BB000-memory.dmp family_glupteba behavioral1/memory/2540-127-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1280-157-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/2540-182-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/1644-215-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-218-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-221-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-224-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-228-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-230-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-233-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-236-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-240-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-242-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-245-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-248-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1644-252-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2168 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1644 csrss.exe 4820 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
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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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe File created C:\Windows\rss\csrss.exe 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe -
pid Process 3428 powershell.exe 4708 powershell.exe 2580 powershell.exe 848 powershell.exe 4216 powershell.exe 3972 powershell.exe 1164 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4444 schtasks.exe 3156 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2580 powershell.exe 2580 powershell.exe 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 848 powershell.exe 848 powershell.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 4216 powershell.exe 4216 powershell.exe 3972 powershell.exe 3972 powershell.exe 1164 powershell.exe 1164 powershell.exe 3428 powershell.exe 3428 powershell.exe 4708 powershell.exe 4708 powershell.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 1644 csrss.exe 1644 csrss.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 1644 csrss.exe 1644 csrss.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe 4820 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2580 powershell.exe Token: SeDebugPrivilege 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Token: SeImpersonatePrivilege 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe Token: SeDebugPrivilege 848 powershell.exe Token: SeDebugPrivilege 4216 powershell.exe Token: SeDebugPrivilege 3972 powershell.exe Token: SeDebugPrivilege 1164 powershell.exe Token: SeDebugPrivilege 3428 powershell.exe Token: SeDebugPrivilege 4708 powershell.exe Token: SeSystemEnvironmentPrivilege 1644 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2540 wrote to memory of 2580 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 87 PID 2540 wrote to memory of 2580 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 87 PID 2540 wrote to memory of 2580 2540 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 87 PID 1280 wrote to memory of 848 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 94 PID 1280 wrote to memory of 848 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 94 PID 1280 wrote to memory of 848 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 94 PID 1280 wrote to memory of 3300 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 97 PID 1280 wrote to memory of 3300 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 97 PID 3300 wrote to memory of 2168 3300 cmd.exe 99 PID 3300 wrote to memory of 2168 3300 cmd.exe 99 PID 1280 wrote to memory of 4216 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 100 PID 1280 wrote to memory of 4216 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 100 PID 1280 wrote to memory of 4216 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 100 PID 1280 wrote to memory of 3972 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 103 PID 1280 wrote to memory of 3972 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 103 PID 1280 wrote to memory of 3972 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 103 PID 1280 wrote to memory of 1644 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 106 PID 1280 wrote to memory of 1644 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 106 PID 1280 wrote to memory of 1644 1280 558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe 106 PID 1644 wrote to memory of 1164 1644 csrss.exe 107 PID 1644 wrote to memory of 1164 1644 csrss.exe 107 PID 1644 wrote to memory of 1164 1644 csrss.exe 107 PID 1644 wrote to memory of 3428 1644 csrss.exe 113 PID 1644 wrote to memory of 3428 1644 csrss.exe 113 PID 1644 wrote to memory of 3428 1644 csrss.exe 113 PID 1644 wrote to memory of 4708 1644 csrss.exe 115 PID 1644 wrote to memory of 4708 1644 csrss.exe 115 PID 1644 wrote to memory of 4708 1644 csrss.exe 115 PID 1644 wrote to memory of 4820 1644 csrss.exe 117 PID 1644 wrote to memory of 4820 1644 csrss.exe 117 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe"C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2580
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C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe"C:\Users\Admin\AppData\Local\Temp\558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:848
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:3300 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
PID:2168
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4216
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3972
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1164
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3156
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2884
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3428
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4708
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4820
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:4444
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50f0cbbbf6b23ff2d785fba864a13cd87
SHA1983698550f2e4dd72010cec56546fd13ff4a8d2a
SHA256754696c1af189785a00e340dfbedc9e804ca5251e3b6b76f1812589311294b99
SHA5125cf51a72bf375d3d46fcff542ac65c516a5b4989eb6b8df8112ff6e0b7ab3ed58438a472ac1ac3c0008384b6bc0cbbf7c8d50cd9912476268cfdad73de25e213
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59d73f02c927186e9d4969b866e55f149
SHA16c71ead997fd32f9e96aa03c8f293ac200a69edb
SHA256b68e8612e965f1b30130c19548f08affcd1ff7198672c6fdb8131eb51f8d8e05
SHA512710a14875b7d3c3e9bc97af7678192349ccac7097c9f4853bfb1c3118628c672241af0639ed65e2ab775f0e9607f81653f45ed5791d2bdf98d9f5a76999b567e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5beff5e3e6c88bc79174b44046b61d601
SHA1bc3c154ee04d6b856acc360306b315949d4553f3
SHA256240099d356522630016796c6958c122b9106c6790140c39497aee6e711dca2a4
SHA512aca2ca123c1fa287c7697768a5af2a71bbbbf39fb1f68157148fe54596cfb38e33b27f399ae5be99d426652a353b66d03cf21f7eeef8cc2c47181de8ad1079a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51694284a8c47cbf5378adf65adb125c5
SHA1d49977d0e8a839d616ab2979af54d186df46728f
SHA256263e3c02b7ec0a1530b5d54fe5157ddd048ccebe7de8f553d14509f29875af2d
SHA5126319d7215a6205900e1a1cf7463a0943ebc451f7f18bf4d5489ee80f0dd21abcdfe79399b6f6d7a0ff52f44f32d7a8eeca73e29e924856128530b00c67884c32
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5807ac61bc806057f421830e9fca47365
SHA1456526e23884b8957b6adf77a33259405ccfe636
SHA256a5ef08e668238c2c62c11f26bef1fb90b5b46ebc7e92fb2540e51be345efcb0b
SHA5124a86831c77a7dfbda676674178d09fa2c720ac00819a4b0aa33d2db0b676ef5d5e41c13f6762a71fc4edd120e95393886cab3efcebeec2a047d6e6f52ccb5fd2
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Filesize
4.1MB
MD54859a99b80e9ad16171b6847d5c4b5b1
SHA1d5c41a9f040d85489e34a6904d7147fdb753a41c
SHA256558aed649fa013e3508b626886c906f2e83d964a943b235a1bd78359e06aa3cf
SHA512afd1d9c804174f173798eff312653b5303166b891db98ca2d182e075f75ea3ecb3c4ecfd17ff8a354f2d4aebe25838c78502191a6685f2cfbf9c7cd62aa456e8