Analysis
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max time kernel
150s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
28/04/2024, 09:05
Static task
static1
Behavioral task
behavioral1
Sample
ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe
Resource
win10v2004-20240426-en
General
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Target
ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe
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Size
4.2MB
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MD5
7ee48a244c52d18c314e6bd25354c851
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SHA1
68630ca957c62b882c10f221d627f910da4ed622
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SHA256
ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c
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SHA512
58f86b9ea5fd4298c7fc240f7f91ff8e4b0e8f30791cb70457b0409481bec803a79a17043e4a1379c806be7251284e90d00168554c12e7b20b0187f000161a0f
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SSDEEP
49152:FJckUcan+/g6qtZ7W5Wul/84VXgUJTm7JMhId3wmg2qSwTtxSn5uLWpyDruLtBI1:fRfD5f1lRJsTZrbotuJBJKZ
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1240-2-0x0000000003F80000-0x000000000486B000-memory.dmp family_glupteba behavioral2/memory/1240-3-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/1240-98-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/1240-120-0x0000000003F80000-0x000000000486B000-memory.dmp family_glupteba behavioral2/memory/4216-125-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-199-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-210-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-213-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-216-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-219-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-222-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-225-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-228-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-231-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-234-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-237-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-240-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba behavioral2/memory/2560-243-0x0000000000400000-0x0000000001DFC000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4956 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2560 csrss.exe 1684 injector.exe 2928 windefender.exe 1820 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa0e-202.dat upx behavioral2/memory/2928-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1820-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2928-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1820-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1820-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\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 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.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 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 532 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 1808 schtasks.exe 3768 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,-111 = "Eastern Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2891 = "Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.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,-201 = "US Mountain Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2162 = "Altai Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1636 powershell.exe 1636 powershell.exe 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 2788 powershell.exe 2788 powershell.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 4580 powershell.exe 4580 powershell.exe 3836 powershell.exe 3836 powershell.exe 4704 powershell.exe 4704 powershell.exe 2072 powershell.exe 2072 powershell.exe 1496 powershell.exe 1496 powershell.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 2560 csrss.exe 2560 csrss.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 2560 csrss.exe 2560 csrss.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 2560 csrss.exe 2560 csrss.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe 1684 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1636 powershell.exe Token: SeDebugPrivilege 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Token: SeImpersonatePrivilege 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe Token: SeDebugPrivilege 2788 powershell.exe Token: SeDebugPrivilege 4580 powershell.exe Token: SeDebugPrivilege 3836 powershell.exe Token: SeDebugPrivilege 4704 powershell.exe Token: SeDebugPrivilege 2072 powershell.exe Token: SeDebugPrivilege 1496 powershell.exe Token: SeSystemEnvironmentPrivilege 2560 csrss.exe Token: SeSecurityPrivilege 532 sc.exe Token: SeSecurityPrivilege 532 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1240 wrote to memory of 1636 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 83 PID 1240 wrote to memory of 1636 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 83 PID 1240 wrote to memory of 1636 1240 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 83 PID 4216 wrote to memory of 2788 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 89 PID 4216 wrote to memory of 2788 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 89 PID 4216 wrote to memory of 2788 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 89 PID 4216 wrote to memory of 2540 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 91 PID 4216 wrote to memory of 2540 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 91 PID 2540 wrote to memory of 4956 2540 cmd.exe 93 PID 2540 wrote to memory of 4956 2540 cmd.exe 93 PID 4216 wrote to memory of 4580 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 94 PID 4216 wrote to memory of 4580 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 94 PID 4216 wrote to memory of 4580 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 94 PID 4216 wrote to memory of 3836 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 96 PID 4216 wrote to memory of 3836 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 96 PID 4216 wrote to memory of 3836 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 96 PID 4216 wrote to memory of 2560 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 98 PID 4216 wrote to memory of 2560 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 98 PID 4216 wrote to memory of 2560 4216 ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe 98 PID 2560 wrote to memory of 4704 2560 csrss.exe 99 PID 2560 wrote to memory of 4704 2560 csrss.exe 99 PID 2560 wrote to memory of 4704 2560 csrss.exe 99 PID 2560 wrote to memory of 2072 2560 csrss.exe 105 PID 2560 wrote to memory of 2072 2560 csrss.exe 105 PID 2560 wrote to memory of 2072 2560 csrss.exe 105 PID 2560 wrote to memory of 1496 2560 csrss.exe 107 PID 2560 wrote to memory of 1496 2560 csrss.exe 107 PID 2560 wrote to memory of 1496 2560 csrss.exe 107 PID 2560 wrote to memory of 1684 2560 csrss.exe 109 PID 2560 wrote to memory of 1684 2560 csrss.exe 109 PID 2928 wrote to memory of 5088 2928 windefender.exe 115 PID 2928 wrote to memory of 5088 2928 windefender.exe 115 PID 2928 wrote to memory of 5088 2928 windefender.exe 115 PID 5088 wrote to memory of 532 5088 cmd.exe 116 PID 5088 wrote to memory of 532 5088 cmd.exe 116 PID 5088 wrote to memory of 532 5088 cmd.exe 116 -
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\ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe"C:\Users\Admin\AppData\Local\Temp\ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1636
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C:\Users\Admin\AppData\Local\Temp\ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.exe"C:\Users\Admin\AppData\Local\Temp\ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c.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:4216 -
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:2788
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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:2540 -
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:4956
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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:4580
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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:3836
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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:2560 -
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:4704
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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:1808
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1476
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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:2072
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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:1496
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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:1684
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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:3768
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2928 -
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:5088 -
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:532
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1820
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
MD53e1d9ea7bff9adec9e3c245568bdcbf6
SHA1c5d8a68ed1b777738bca54acd750aafc0351fbde
SHA2565659aed39d47dbb400bb6edb531f88a03ac3726be316cb85ec761c68f1caf095
SHA512b9cb55ca084cdd99192b53afd8e290bd971c7d8bea38c1a53ec4a86d26013aeffc8bdde5373bd110a626b74d9ee23dc6efa4cb6f2cd09c6dd64603e5ffea406e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d7c48e8b9f93420b0cb1c116826610c4
SHA1ec5bf58e7099b07ba77e10b2eb6a3f4b093147a4
SHA25642f753c529a03cd5fc9fedfc8562b6fc8d34b6c33f83bba593469524fe3326df
SHA512125649bd7c01cf04ed4c7b7658fb868add03dc54b1e34ead5a6ba92f5c64ce436b51010c636679a058630f6e708ccd37d33691cc428a00ddb1dfd8093e06dc1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d07fff36274b763fee830b1daf65626c
SHA16fb09818bebd8c30d20a94e4bf247e40839f1d49
SHA256742a4a38ce4a2e7952525c941c54171cf4d4202a8ab8d791c84ee3cca7ef23d0
SHA5121faf0ef709a709c9fe8a10d0493c64c515512435136ed8387ab4b1b4265b85216412295cc825ae422b4faa1fb0f38219b43b1604cc35a632a9dbf0dba84c35af
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD597128955771ab5618f551752884bd52b
SHA17583878d2d68f0cf2f5d1ed64d8a762222178f8b
SHA256d944feed29081189f72be2d5e6c2ff0eea0b390de828d93d08ff1a44e3d3ee32
SHA5123d203a58c7929d93293315bab389b3eb9822383928bbbd51b8fab49d7f6bd77eac7f7d0ecf3f48fa9f6ab08e45baacd1865f708dbd87c9b9b992b537318028b5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51c16d052ecf2d64d7172fdabad50102d
SHA1ff8a8c470b942b7731fa3e9473f059f758443515
SHA2566ab15d3a99b44eba3ececf6dfc3de038a6d850386e718bad107aa34d706548a0
SHA51269d40585c3dedba0a9dd72c2f0737fffca866479d0feba9db78d1addedfd7998e858aebc282b2457fa5fc3455087a0ef08edf963d93511155bf593a3d5e8e3b2
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Filesize
4.2MB
MD57ee48a244c52d18c314e6bd25354c851
SHA168630ca957c62b882c10f221d627f910da4ed622
SHA256ab09041c77751d16e2cf747e5da02ae63fa9560f6054b7abff2645e45adfa00c
SHA51258f86b9ea5fd4298c7fc240f7f91ff8e4b0e8f30791cb70457b0409481bec803a79a17043e4a1379c806be7251284e90d00168554c12e7b20b0187f000161a0f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec