Analysis
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max time kernel
149s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 15:48
Static task
static1
Behavioral task
behavioral1
Sample
39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe
Resource
win10v2004-20240508-en
General
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Target
39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe
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Size
4.1MB
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MD5
eebd746a771e4a486df57e532c4ddbf3
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SHA1
d2584aad8fb704611b07e909039f683ae9880de8
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SHA256
39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77
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SHA512
75f21ff3ebcf17313c1053161b7325235ed00157d52076e020693e992bccf4e7966464d79a42d1eff3e9781ea442ba56835bbdcfa056852633e1e51563a3eb6d
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SSDEEP
98304:k3tbwrB0kIuN3D8bfUXVQCwP9Kpl7QJG8rgohSw8D2z60ht59X1:kdQIuMQA9oQJ/gXDC
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1684-2-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/1684-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1684-120-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1684-121-0x0000000002E70000-0x000000000375B000-memory.dmp family_glupteba behavioral2/memory/2424-172-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-202-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-243-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-247-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-251-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-255-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2800-259-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3996 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2800 csrss.exe 2472 injector.exe 3524 windefender.exe 3448 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa3e-206.dat upx behavioral2/memory/3524-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3524-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3448-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3448-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3448-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\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 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 -
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 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.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 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1936 sc.exe -
pid Process 996 powershell.exe 4880 powershell.exe 2340 powershell.exe 2532 powershell.exe 404 powershell.exe 1520 powershell.exe 1140 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4616 schtasks.exe 4796 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\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates 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,-1871 = "Russia TZ 7 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-632 = "Tokyo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.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\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.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,-448 = "Azerbaijan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-431 = "Iran Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-732 = "Fiji Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2181 = "Astrakhan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 996 powershell.exe 996 powershell.exe 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 4880 powershell.exe 4880 powershell.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 2340 powershell.exe 2340 powershell.exe 2532 powershell.exe 2532 powershell.exe 404 powershell.exe 404 powershell.exe 1520 powershell.exe 1520 powershell.exe 1140 powershell.exe 1140 powershell.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2800 csrss.exe 2800 csrss.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2800 csrss.exe 2800 csrss.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2800 csrss.exe 2800 csrss.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe 2472 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 996 powershell.exe Token: SeDebugPrivilege 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Token: SeImpersonatePrivilege 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe Token: SeDebugPrivilege 4880 powershell.exe Token: SeDebugPrivilege 2340 powershell.exe Token: SeDebugPrivilege 2532 powershell.exe Token: SeDebugPrivilege 404 powershell.exe Token: SeDebugPrivilege 1520 powershell.exe Token: SeDebugPrivilege 1140 powershell.exe Token: SeSystemEnvironmentPrivilege 2800 csrss.exe Token: SeSecurityPrivilege 1936 sc.exe Token: SeSecurityPrivilege 1936 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1684 wrote to memory of 996 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 83 PID 1684 wrote to memory of 996 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 83 PID 1684 wrote to memory of 996 1684 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 83 PID 2424 wrote to memory of 4880 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 88 PID 2424 wrote to memory of 4880 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 88 PID 2424 wrote to memory of 4880 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 88 PID 2424 wrote to memory of 4320 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 90 PID 2424 wrote to memory of 4320 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 90 PID 4320 wrote to memory of 3996 4320 cmd.exe 92 PID 4320 wrote to memory of 3996 4320 cmd.exe 92 PID 2424 wrote to memory of 2340 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 93 PID 2424 wrote to memory of 2340 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 93 PID 2424 wrote to memory of 2340 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 93 PID 2424 wrote to memory of 2532 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 95 PID 2424 wrote to memory of 2532 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 95 PID 2424 wrote to memory of 2532 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 95 PID 2424 wrote to memory of 2800 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 97 PID 2424 wrote to memory of 2800 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 97 PID 2424 wrote to memory of 2800 2424 39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe 97 PID 2800 wrote to memory of 404 2800 csrss.exe 98 PID 2800 wrote to memory of 404 2800 csrss.exe 98 PID 2800 wrote to memory of 404 2800 csrss.exe 98 PID 2800 wrote to memory of 1520 2800 csrss.exe 103 PID 2800 wrote to memory of 1520 2800 csrss.exe 103 PID 2800 wrote to memory of 1520 2800 csrss.exe 103 PID 2800 wrote to memory of 1140 2800 csrss.exe 106 PID 2800 wrote to memory of 1140 2800 csrss.exe 106 PID 2800 wrote to memory of 1140 2800 csrss.exe 106 PID 2800 wrote to memory of 2472 2800 csrss.exe 108 PID 2800 wrote to memory of 2472 2800 csrss.exe 108 PID 3524 wrote to memory of 1036 3524 windefender.exe 114 PID 3524 wrote to memory of 1036 3524 windefender.exe 114 PID 3524 wrote to memory of 1036 3524 windefender.exe 114 PID 1036 wrote to memory of 1936 1036 cmd.exe 115 PID 1036 wrote to memory of 1936 1036 cmd.exe 115 PID 1036 wrote to memory of 1936 1036 cmd.exe 115 -
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\39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe"C:\Users\Admin\AppData\Local\Temp\39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:996
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C:\Users\Admin\AppData\Local\Temp\39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.exe"C:\Users\Admin\AppData\Local\Temp\39b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77.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:2424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4880
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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:4320 -
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:3996
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2340
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2532
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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:2800 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:404
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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:4796
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4836
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1520
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1140
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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:2472
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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:4616
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3524 -
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:1036 -
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:1936
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3448
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
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54df6afae1277ebe2ddb69430714ad58f
SHA1967873b4738fa4aaa99ebfbba2ce2484411c36d2
SHA2568477bc7d5b168f31f7cd768b5469524c8f2a6420a4d14c417bd8d175540d89a6
SHA512ba220708fcc99243031d1103dd24e56ab7d9a534139c9e4e65206b9ddd0aa1850d4e089976e3bf835134133f336b8c5fdbc5716d0e698ba0fc3579c88eba3edf
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d10983f3d2d93cc5c4b88b634e943d7f
SHA12bde179efb7566867024905aab620ed4c78b4c0e
SHA2562fbf96c770e3a6914e26461fcf6c660877c840d5136bf13cbf33a529f659fc6e
SHA512df0cd525cde3bd03bb9f91559c786989e86c6d95d1eb51b7fdb78a2552999e873fd9d9e7f6439f64acb4aa76f2563bafdaf0ed016b41a7ea0d79561978947407
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cce405d20aeace16df4fbb416a302194
SHA149e33e8c97132d1a5b39872e581698b6445d7d14
SHA256579e450d81e2d43d060e4e7d766422968abae09a74cd08f353d0c6ae46da4044
SHA512ac076bb66871fc604f674590dd6acfa43a8b23ec9bfb49df678610c4a5ddfc9a93cd707e967966db2bc3489fc10acc501e47e732e6bc0b5d7781415cf534ac7b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD554505a77a56e41a6ca3a88cd53b59c72
SHA13891bb49362a6e8f4498b8586229ce7d746825fc
SHA25615f1d37c5e0bbbe05de76ce21dc137400114a781507f8059b1cdda24f34fef7a
SHA5121c952b93d8a00e435a1772ad020b6439b923536ff824e65bc4069d82a5185aa0782d44e0fa69972c169e7dc9c9d3e921ca8ad53530d9c2dc542fcb48f4103cdd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d8b5b8d5d97b8f0980b20b76b3a6a689
SHA1ad6e6a32815e4fa7e07e02a1967dff3ee89db125
SHA256a269c6338d338a2eaff57f1467a81997094a4d872ea4967dc1fb72662e333271
SHA5124c6002e831ee51f14da69e4d86a8121a8d302d13063f19fda94d68c328039c045c0504b1f691a40e1f7e79cc117884fdb9711a164bc90e069d894b6a6d9b2e72
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Filesize
4.1MB
MD5eebd746a771e4a486df57e532c4ddbf3
SHA1d2584aad8fb704611b07e909039f683ae9880de8
SHA25639b4aee988d51830f280b9494464ca407b165e30e64d1f1dbe18cd37ec01be77
SHA51275f21ff3ebcf17313c1053161b7325235ed00157d52076e020693e992bccf4e7966464d79a42d1eff3e9781ea442ba56835bbdcfa056852633e1e51563a3eb6d
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec