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Analysis
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max time kernel
154s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
11/04/2024, 13:12
Static task
static1
Behavioral task
behavioral1
Sample
81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe
Resource
win10v2004-20231215-en
General
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Target
81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe
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Size
4.2MB
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MD5
6d230dfb1266354e7caabd0999093b7c
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SHA1
e7c591512109d84ed924f06f2a6b3d03b3e17d8f
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SHA256
81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154
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SHA512
a001c0adbd6b55623ce4685868ef585dbe6f38870f22fadde5bdc657ad2581cc8733517a24701bba2276ea0e9161f7814d3c7f78e07f3b02bb60c3035ebec002
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SSDEEP
98304:Q05gtdSazgp0Q+u+gT9rzqVP5fzlLW4FZGrcXeb73s:CdSaur+ihKP5fR71eU
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/944-2-0x0000000005350000-0x0000000005C3B000-memory.dmp family_glupteba behavioral2/memory/944-3-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/944-44-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/944-52-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/944-54-0x0000000005350000-0x0000000005C3B000-memory.dmp family_glupteba behavioral2/memory/252-56-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/252-85-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/252-103-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/252-117-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/252-165-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-213-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-246-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-256-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-259-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-262-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-265-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-268-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-271-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-274-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba behavioral2/memory/2396-277-0x0000000000400000-0x0000000003108000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2532 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2396 csrss.exe 1492 injector.exe 3236 windefender.exe 1452 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a810-250.dat upx behavioral2/memory/3236-255-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1452-258-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1452-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\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 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 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 -
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 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe File created C:\Windows\rss\csrss.exe 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.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 4744 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 4856 schtasks.exe 2408 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs 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\22\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.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\22\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.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\22\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\22\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\22\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.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\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2088 powershell.exe 2088 powershell.exe 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 1924 powershell.exe 1924 powershell.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 4896 powershell.exe 4896 powershell.exe 3364 powershell.exe 3364 powershell.exe 5052 powershell.exe 5052 powershell.exe 4188 powershell.exe 4188 powershell.exe 3356 powershell.exe 3356 powershell.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 2396 csrss.exe 2396 csrss.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 2396 csrss.exe 2396 csrss.exe 1492 injector.exe 1492 injector.exe 2396 csrss.exe 2396 csrss.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe 1492 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2088 powershell.exe Token: SeDebugPrivilege 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Token: SeImpersonatePrivilege 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe Token: SeDebugPrivilege 1924 powershell.exe Token: SeDebugPrivilege 4896 powershell.exe Token: SeDebugPrivilege 3364 powershell.exe Token: SeDebugPrivilege 5052 powershell.exe Token: SeDebugPrivilege 4188 powershell.exe Token: SeDebugPrivilege 3356 powershell.exe Token: SeSystemEnvironmentPrivilege 2396 csrss.exe Token: SeSecurityPrivilege 4744 sc.exe Token: SeSecurityPrivilege 4744 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 944 wrote to memory of 2088 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 80 PID 944 wrote to memory of 2088 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 80 PID 944 wrote to memory of 2088 944 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 80 PID 252 wrote to memory of 1924 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 85 PID 252 wrote to memory of 1924 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 85 PID 252 wrote to memory of 1924 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 85 PID 252 wrote to memory of 1544 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 87 PID 252 wrote to memory of 1544 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 87 PID 1544 wrote to memory of 2532 1544 cmd.exe 89 PID 1544 wrote to memory of 2532 1544 cmd.exe 89 PID 252 wrote to memory of 4896 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 90 PID 252 wrote to memory of 4896 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 90 PID 252 wrote to memory of 4896 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 90 PID 252 wrote to memory of 3364 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 92 PID 252 wrote to memory of 3364 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 92 PID 252 wrote to memory of 3364 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 92 PID 252 wrote to memory of 2396 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 94 PID 252 wrote to memory of 2396 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 94 PID 252 wrote to memory of 2396 252 81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe 94 PID 2396 wrote to memory of 5052 2396 csrss.exe 95 PID 2396 wrote to memory of 5052 2396 csrss.exe 95 PID 2396 wrote to memory of 5052 2396 csrss.exe 95 PID 2396 wrote to memory of 4188 2396 csrss.exe 100 PID 2396 wrote to memory of 4188 2396 csrss.exe 100 PID 2396 wrote to memory of 4188 2396 csrss.exe 100 PID 2396 wrote to memory of 3356 2396 csrss.exe 103 PID 2396 wrote to memory of 3356 2396 csrss.exe 103 PID 2396 wrote to memory of 3356 2396 csrss.exe 103 PID 2396 wrote to memory of 1492 2396 csrss.exe 105 PID 2396 wrote to memory of 1492 2396 csrss.exe 105 PID 3236 wrote to memory of 4948 3236 windefender.exe 111 PID 3236 wrote to memory of 4948 3236 windefender.exe 111 PID 3236 wrote to memory of 4948 3236 windefender.exe 111 PID 4948 wrote to memory of 4744 4948 cmd.exe 112 PID 4948 wrote to memory of 4744 4948 cmd.exe 112 PID 4948 wrote to memory of 4744 4948 cmd.exe 112 -
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\81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe"C:\Users\Admin\AppData\Local\Temp\81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2088
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C:\Users\Admin\AppData\Local\Temp\81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.exe"C:\Users\Admin\AppData\Local\Temp\81cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154.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:252 -
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:1924
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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:1544 -
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:2532
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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:4896
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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:3364
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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:2396 -
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:5052
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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:4856
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3508
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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:4188
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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:3356
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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:1492
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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:2408
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3236 -
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:4948 -
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:4744
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1452
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
MD59c82714ff2a6996418a13b4f9d06882d
SHA168151bcdaeab33be306723116d15d3565b69a08c
SHA256e702c4c7af0a485655d5874737393832c35d3f23603c1b35bf785df95056a04a
SHA512fe6dda13c86e271dedc6600c4fee5ef084610bcc588d90169ab1fe009a1c1063a5ae95f1a6fb842d4e27f3fb68f3c5ef00804cd7c6dd23f32e99a17a534a7a4b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fddfe2ca1f7c72fc9b9efcf971decbfd
SHA161cd71778678b97a9eb26ec1d177eb0641e1bd54
SHA25645a2f837d2aa140bfa983c94dad1c0eef59b5d545fbbeaadf0fb415d0a672e7b
SHA512bd187d7c296704ea95b917a77405eb1196c20142c2bdd8c316250a51d8005fa637f13cbaf6d32ae8b0a2f80cc1084e62f2d0c33ccc40778275d0bd7681f07ee5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ebc6a1d9d3d8198b4a60e2f672f71547
SHA1e334db37668837b8f8e9cf5efde914b63b496944
SHA25677e3133de79662e99a4ca469a83a95435d104b6499371faee3063ba03c8f3bf5
SHA51286eabe72a81bdf11f923e7eeb8fbe6f4b6453b03de9074c10bba0071cc488735d1c1f32cd63f9024f782f59461924e537bf611ea0542d1bf647f72e41a154469
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5469ead072e98a214dda99d704d254e60
SHA1e62840145d46b0162d16780a16e2d35d06baeeb1
SHA256f50dc5d17385e53a5748037fc8a913422923588aff597131c607a76864e8721f
SHA51247467369df47c28c2cb76e7b611a217bcc76d737976a46ea91b452db5366228325e8fc54a74c4b77111e88c6a99ca603bb3949addf3d18d7f361c4890f4c060b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e84dcb76cf8793b3f9c8d215eb53ea1d
SHA13d9ad192fb3a29ea9b16449e5b77fe2a8d363ea8
SHA2568ad41bc1edba1fbd3ac4f35a871a9ea5bfc6cc2fc17a611a2c96b79c0862e44e
SHA512fc19788dbd9eda79fba6040b4b85983ff7178b4d9c45def5aad18aa6ab05f7513195b2a961c734d362564920432d42e159a951020b58be2e308aa8530dc53535
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Filesize
4.2MB
MD56d230dfb1266354e7caabd0999093b7c
SHA1e7c591512109d84ed924f06f2a6b3d03b3e17d8f
SHA25681cc94ba2712cc895792789e4e78657fa114a52170674b395351e1aaaa054154
SHA512a001c0adbd6b55623ce4685868ef585dbe6f38870f22fadde5bdc657ad2581cc8733517a24701bba2276ea0e9161f7814d3c7f78e07f3b02bb60c3035ebec002
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec