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Analysis
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max time kernel
149s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/05/2024, 09:00
Static task
static1
Behavioral task
behavioral1
Sample
bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe
Resource
win10v2004-20240426-en
General
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Target
bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe
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Size
4.1MB
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MD5
c9a90d99d8c26f334749d4372d009614
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SHA1
29aaa6bedd4a2f13ea5f420f1f3cec944366bf97
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SHA256
bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480
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SHA512
b9733af50135448626ed9209e8770c8f6ea4db3b74870700524c932e717e8d325c0bac2fa06e727ee8395388b8df32300e6bbe5f644a44bad9be02d320b62321
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SSDEEP
98304:ovCQaDBnSWO/B+XxjapSyZlG1PnsYHdaWgIg92gsnC3bzMZh6P1Q:ovC3DFSWO/BjYGk1PnXHoWWZ1za6NQ
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1440-2-0x0000000004630000-0x0000000004F1B000-memory.dmp family_glupteba behavioral2/memory/1440-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1440-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1440-54-0x0000000004630000-0x0000000004F1B000-memory.dmp family_glupteba behavioral2/memory/1440-51-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/3908-125-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-203-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-213-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-215-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-217-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-219-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-221-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-223-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-225-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-227-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-229-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-231-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-233-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4244-235-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4064 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4244 csrss.exe 4588 injector.exe 4456 windefender.exe 1956 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9e5-206.dat upx behavioral2/memory/4456-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1956-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4456-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1956-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1956-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\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\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 File created 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 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe File created C:\Windows\rss\csrss.exe bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5068 sc.exe -
pid Process 3828 powershell.exe 1748 powershell.exe 1520 powershell.exe 1832 powershell.exe 688 powershell.exe 4608 powershell.exe 3876 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 2096 schtasks.exe 1508 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,-221 = "Alaskan Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2631 = "Norfolk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3828 powershell.exe 3828 powershell.exe 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 1748 powershell.exe 1748 powershell.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 1520 powershell.exe 1520 powershell.exe 1832 powershell.exe 1832 powershell.exe 688 powershell.exe 688 powershell.exe 4608 powershell.exe 4608 powershell.exe 3876 powershell.exe 3876 powershell.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4244 csrss.exe 4244 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4244 csrss.exe 4244 csrss.exe 4588 injector.exe 4588 injector.exe 4244 csrss.exe 4244 csrss.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe 4588 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3828 powershell.exe Token: SeDebugPrivilege 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Token: SeImpersonatePrivilege 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe Token: SeDebugPrivilege 1748 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 1832 powershell.exe Token: SeDebugPrivilege 688 powershell.exe Token: SeDebugPrivilege 4608 powershell.exe Token: SeDebugPrivilege 3876 powershell.exe Token: SeSystemEnvironmentPrivilege 4244 csrss.exe Token: SeSecurityPrivilege 5068 sc.exe Token: SeSecurityPrivilege 5068 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1440 wrote to memory of 3828 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 79 PID 1440 wrote to memory of 3828 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 79 PID 1440 wrote to memory of 3828 1440 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 79 PID 3908 wrote to memory of 1748 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 84 PID 3908 wrote to memory of 1748 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 84 PID 3908 wrote to memory of 1748 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 84 PID 3908 wrote to memory of 3264 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 86 PID 3908 wrote to memory of 3264 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 86 PID 3264 wrote to memory of 4064 3264 cmd.exe 88 PID 3264 wrote to memory of 4064 3264 cmd.exe 88 PID 3908 wrote to memory of 1520 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 89 PID 3908 wrote to memory of 1520 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 89 PID 3908 wrote to memory of 1520 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 89 PID 3908 wrote to memory of 1832 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 91 PID 3908 wrote to memory of 1832 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 91 PID 3908 wrote to memory of 1832 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 91 PID 3908 wrote to memory of 4244 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 93 PID 3908 wrote to memory of 4244 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 93 PID 3908 wrote to memory of 4244 3908 bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe 93 PID 4244 wrote to memory of 688 4244 csrss.exe 94 PID 4244 wrote to memory of 688 4244 csrss.exe 94 PID 4244 wrote to memory of 688 4244 csrss.exe 94 PID 4244 wrote to memory of 4608 4244 csrss.exe 99 PID 4244 wrote to memory of 4608 4244 csrss.exe 99 PID 4244 wrote to memory of 4608 4244 csrss.exe 99 PID 4244 wrote to memory of 3876 4244 csrss.exe 102 PID 4244 wrote to memory of 3876 4244 csrss.exe 102 PID 4244 wrote to memory of 3876 4244 csrss.exe 102 PID 4244 wrote to memory of 4588 4244 csrss.exe 104 PID 4244 wrote to memory of 4588 4244 csrss.exe 104 PID 4456 wrote to memory of 3068 4456 windefender.exe 110 PID 4456 wrote to memory of 3068 4456 windefender.exe 110 PID 4456 wrote to memory of 3068 4456 windefender.exe 110 PID 3068 wrote to memory of 5068 3068 cmd.exe 111 PID 3068 wrote to memory of 5068 3068 cmd.exe 111 PID 3068 wrote to memory of 5068 3068 cmd.exe 111 -
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\bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe"C:\Users\Admin\AppData\Local\Temp\bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3828
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C:\Users\Admin\AppData\Local\Temp\bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.exe"C:\Users\Admin\AppData\Local\Temp\bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480.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:3908 -
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:1748
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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:3264 -
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:4064
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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:1520
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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:1832
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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.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244 -
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:688
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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:2096
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1056
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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:4608
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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:3876
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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:4588
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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:1508
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4456 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:5068
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1956
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD578d4f0706189f13bc695c80262314273
SHA1208c8fd20e61bc601ac60927eb41c71edda9b1ed
SHA256b7f5b16153d5d5ea88d7a1bc6e75b65f45f268cbc4293db82461524e45f7c544
SHA512dfc00a2be31965c6ad15739cb359e999e150a982ccb4decc6666638c82ad3f4730d53c2ac2775dd1e0934add7c50ca1b718c5217e0d32613eace55c676bd52a8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51891d3ce6f3f3f9e3ded9040caee3f6a
SHA15e273c267693cd883580cf253fa94953a2bc0ea2
SHA256d3c1e5f83bda0342cca21071f889629f77ef9adaa3c9511bc94b58ee1275bdc9
SHA51249b89d8e323908162e3bb2679c72e19741a98dd2afbb70a838cfe97589b8411b2946e8ea9636b735a6b2ba4bf74f224bf1993ddd28d130ca0bd19a4aa27bb2ad
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59211289489375a6f4255648e319d161c
SHA1201a67cb51628b281e56fa6958eb02862d4f6084
SHA256ee1ac21bff22906b09f66433db9f787aadd48e443ad35e7e3cd6a6cfa38548b2
SHA512ccb53237006f130e1b1a4736dd70316c544dc2d406c8e11d23c4210fe1268a4c6ded1132c6772ea57252785c446f89604fe1931030067aaa12276cecb99a5640
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53da5c15e4e6c50d055426dceb4206195
SHA11ed19fe6af21fa6cad23f57fa0b62f0945272316
SHA256c2be435fe208acebdad05e2804d4c8d6814c27413163acb6a1332fa7bfb1469e
SHA512167af41d1128033e42784dc208b7b5d5ba733e12b623b154c92dbe96cf2c59f11af5a6a315fe011b4c4dd9278f11d735d4223b4473d81d040494bc4d2dd37ce8
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d9672aecb2b781a2e66631bdeabb5a3a
SHA161162a62c7093544160a4ed7bef9ad7fd28efcf6
SHA256aed34d31b2c83b954f57ac5e16c5265d5986d606761c4eb185911ee5a12f2a17
SHA512d5ccfc323ac95da41b2c7a950dbbd3f2cb9235ce4c63cb494766e8ee26551f3dcf229c939327e61c7e6638f6ec06c0db6e5eb00c712e5b3af3ab6c58848bec15
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Filesize
4.1MB
MD5c9a90d99d8c26f334749d4372d009614
SHA129aaa6bedd4a2f13ea5f420f1f3cec944366bf97
SHA256bac00b38bc2fef94b6ef9660b08fb698917ac100d7a010fda7c57d8d14068480
SHA512b9733af50135448626ed9209e8770c8f6ea4db3b74870700524c932e717e8d325c0bac2fa06e727ee8395388b8df32300e6bbe5f644a44bad9be02d320b62321
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec