Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
17/04/2024, 15:50
Static task
static1
Behavioral task
behavioral1
Sample
f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe
Resource
win10v2004-20240412-en
General
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Target
f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe
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Size
4.2MB
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MD5
7f19abaf61cd0b4e1ab722b24500a526
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SHA1
1b25b8834a89bf3d40e6a24d8f5a224930393c09
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SHA256
f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c
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SHA512
845ef67f21dfdcb83a58e0dfc2d16403db059eb7d3266a09eb39a3792025ac1eb4c6856b3ec72d9163a9473f693dfb8fe7e2aa6fbfe579047d57ae22af623874
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SSDEEP
98304:ez7Cg0ld9bGpeFIidtQ9zICqBAsCsR7hN5aqRYTU7J:U7NcfZtQ9LJEd3aOYT+J
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/2364-2-0x0000000005360000-0x0000000005C4B000-memory.dmp family_glupteba behavioral2/memory/2364-3-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5988-53-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/5988-54-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/2364-78-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5988-138-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5988-175-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-240-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-251-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-255-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-259-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-263-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-267-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-271-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-275-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-279-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-283-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-287-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-291-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba behavioral2/memory/5584-295-0x0000000000400000-0x0000000003118000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1760 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 5584 csrss.exe 5596 injector.exe 1088 windefender.exe 3728 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa43-244.dat upx behavioral2/memory/1088-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3728-254-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3728-262-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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 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 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 -
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 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3320 sc.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 784 schtasks.exe 4804 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\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\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates 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\26\52C64B7E\@tzres.dll,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1956 powershell.exe 1956 powershell.exe 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5164 powershell.exe 5164 powershell.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 456 powershell.exe 456 powershell.exe 1448 powershell.exe 1448 powershell.exe 5984 powershell.exe 5984 powershell.exe 984 powershell.exe 984 powershell.exe 2712 powershell.exe 2712 powershell.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5584 csrss.exe 5584 csrss.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5584 csrss.exe 5584 csrss.exe 5596 injector.exe 5596 injector.exe 5584 csrss.exe 5584 csrss.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe 5596 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1956 powershell.exe Token: SeDebugPrivilege 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Token: SeImpersonatePrivilege 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe Token: SeDebugPrivilege 5164 powershell.exe Token: SeDebugPrivilege 456 powershell.exe Token: SeDebugPrivilege 1448 powershell.exe Token: SeDebugPrivilege 5984 powershell.exe Token: SeDebugPrivilege 984 powershell.exe Token: SeDebugPrivilege 2712 powershell.exe Token: SeSystemEnvironmentPrivilege 5584 csrss.exe Token: SeSecurityPrivilege 3320 sc.exe Token: SeSecurityPrivilege 3320 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2364 wrote to memory of 1956 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 81 PID 2364 wrote to memory of 1956 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 81 PID 2364 wrote to memory of 1956 2364 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 81 PID 5988 wrote to memory of 5164 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 86 PID 5988 wrote to memory of 5164 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 86 PID 5988 wrote to memory of 5164 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 86 PID 5988 wrote to memory of 3496 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 88 PID 5988 wrote to memory of 3496 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 88 PID 3496 wrote to memory of 1760 3496 cmd.exe 90 PID 3496 wrote to memory of 1760 3496 cmd.exe 90 PID 5988 wrote to memory of 456 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 91 PID 5988 wrote to memory of 456 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 91 PID 5988 wrote to memory of 456 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 91 PID 5988 wrote to memory of 1448 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 93 PID 5988 wrote to memory of 1448 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 93 PID 5988 wrote to memory of 1448 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 93 PID 5988 wrote to memory of 5584 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 95 PID 5988 wrote to memory of 5584 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 95 PID 5988 wrote to memory of 5584 5988 f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe 95 PID 5584 wrote to memory of 5984 5584 csrss.exe 96 PID 5584 wrote to memory of 5984 5584 csrss.exe 96 PID 5584 wrote to memory of 5984 5584 csrss.exe 96 PID 5584 wrote to memory of 984 5584 csrss.exe 101 PID 5584 wrote to memory of 984 5584 csrss.exe 101 PID 5584 wrote to memory of 984 5584 csrss.exe 101 PID 5584 wrote to memory of 2712 5584 csrss.exe 104 PID 5584 wrote to memory of 2712 5584 csrss.exe 104 PID 5584 wrote to memory of 2712 5584 csrss.exe 104 PID 5584 wrote to memory of 5596 5584 csrss.exe 106 PID 5584 wrote to memory of 5596 5584 csrss.exe 106 PID 1088 wrote to memory of 3440 1088 windefender.exe 112 PID 1088 wrote to memory of 3440 1088 windefender.exe 112 PID 1088 wrote to memory of 3440 1088 windefender.exe 112 PID 3440 wrote to memory of 3320 3440 cmd.exe 113 PID 3440 wrote to memory of 3320 3440 cmd.exe 113 PID 3440 wrote to memory of 3320 3440 cmd.exe 113 -
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\f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe"C:\Users\Admin\AppData\Local\Temp\f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1956
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C:\Users\Admin\AppData\Local\Temp\f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.exe"C:\Users\Admin\AppData\Local\Temp\f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c.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:5988 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5164
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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:3496 -
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:1760
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:456
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1448
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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:5584 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5984
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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:784
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:5880
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:984
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2712
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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:5596
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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:4804
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1088 -
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:3440 -
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:3320
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3728
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
MD5723c62a84b014552d6af7132d1d5af4c
SHA14194076e36a73b087dcc4ba830a98cd18c0acc1e
SHA2564c5fc6ad2b14e3398aad2a962a3f52829657df4b48c9c596eda30c534b1fc9f8
SHA51214acfe86f538d3d0eeefedb6e8a7a926a87ee1644397c8c02541dc0c3bfb7e3168714142ac6fc58bc678131aa27981d0c1aeaa4450383a2bc51af57fc50d9829
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD531b7d9ac169a42558e621907561d6e1a
SHA1c7dd543976d4e525df2baa862a3783eade74d5e3
SHA256261536148d6a0791aaebf68adfe4c83a9e6734450a588734fcc0c2858369bd97
SHA512dbf96ff392867865e6bbf0f5285ba6322b53bed47245c7ced5fe0eec35e9dbb7d7347c3e3aeed3619f45ee717261c37cb53659bf1c2c997d87d51c4d2cacf5a9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5939771e3f481e09420e4c454dd203a8f
SHA1a9c49622b3a934b4bf889366e2b6a16e388158ab
SHA256f318e1c7961043106193b3632023ff901bbcb1160b19d112b978e9680b1eab92
SHA5124202d7010c25a2ba8226f9f7bea7bbcbf2d775a70fd87b7e134f6afbad70f7323dd1a8d01a2113ecde47b89675e9da9cb926e04515844a8e80e81a175c056391
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d137116df4282ade26b666f4158b2e29
SHA1cff9fa1ff8687361010ea124524759d8a6c85e3c
SHA2560715ba1ba9ccbd574fa4ca3c533af96f84594e3af2a154b202103e8507d56e40
SHA512d13252af13918443b808669a5f0ba265335bedab082135670cd120046d124ca1155173541c87f1bc89b4e2d03feb7c2c60818fa94741be7d94c3bf0196732f90
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f8a8eb099831eebf706647f344b1929c
SHA1798839367d6829a8b52124586e3de46c6d410774
SHA25608e1e11114d6307b1a737264eadd67363e63de945b0849ac5a35b669d0e62e80
SHA51262b328c5bc40eb3e67e306ad4cab802ccb675fcc4c3ad8ed9717957bd2cfac4ccb95815754b6df20d0fa7f57d6b4ff0f10a44dfcab52745b475bb887a77d53fa
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Filesize
4.2MB
MD57f19abaf61cd0b4e1ab722b24500a526
SHA11b25b8834a89bf3d40e6a24d8f5a224930393c09
SHA256f9fdb86daba926b4ffb1099583cf2996a54f04a4f3bd2de6e2eb10eef12f3c9c
SHA512845ef67f21dfdcb83a58e0dfc2d16403db059eb7d3266a09eb39a3792025ac1eb4c6856b3ec72d9163a9473f693dfb8fe7e2aa6fbfe579047d57ae22af623874
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec