Analysis
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max time kernel
149s -
max time network
134s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
18-05-2024 21:47
Static task
static1
Behavioral task
behavioral1
Sample
553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe
Resource
win10v2004-20240508-en
General
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Target
553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe
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Size
4.1MB
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MD5
1b938772e4f31d14d3f4bc10ae69d1d2
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SHA1
5948de868bdfd7aa308807f73b7917b5dd287023
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SHA256
553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749
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SHA512
1be4e72b1bc7bd84175c18dbc0d7ff2ac2fb94b90a2e6b84f2a770bc687ac4a188d447afc6b2804c52ef75449ebac5acd3467f0f11ed6f729851960f8a1dca32
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SSDEEP
98304:JsVQ+hudF4keJeyEqK0evsENr9r54Wa5Cc1nHXivF:Js5hioeyE6OsERj43ny
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1884-2-0x0000000004A00000-0x00000000052EB000-memory.dmp family_glupteba behavioral2/memory/1884-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1884-72-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/1884-100-0x0000000004A00000-0x00000000052EB000-memory.dmp family_glupteba behavioral2/memory/1884-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4668-122-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/4668-193-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-201-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-212-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-215-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-219-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-222-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-226-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-231-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-235-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-239-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-242-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-248-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/540-251-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4556 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 540 csrss.exe 5100 injector.exe 2856 windefender.exe 3232 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f5-205.dat upx behavioral2/memory/2856-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2856-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3232-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3232-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe File created C:\Windows\rss\csrss.exe 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.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 2820 sc.exe -
pid Process 4104 powershell.exe 3156 powershell.exe 916 powershell.exe 2080 powershell.exe 1568 powershell.exe 3924 powershell.exe 2460 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 1112 schtasks.exe 2348 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process 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,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-161 = "Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" 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,-662 = "Cen. Australia Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.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\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.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\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-892 = "Morocco Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-682 = "E. Australia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2792 = "Novosibirsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-842 = "Argentina Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2080 powershell.exe 2080 powershell.exe 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 1568 powershell.exe 1568 powershell.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 3924 powershell.exe 3924 powershell.exe 2460 powershell.exe 2460 powershell.exe 4104 powershell.exe 4104 powershell.exe 3156 powershell.exe 3156 powershell.exe 916 powershell.exe 916 powershell.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 540 csrss.exe 540 csrss.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 540 csrss.exe 540 csrss.exe 5100 injector.exe 5100 injector.exe 540 csrss.exe 540 csrss.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe 5100 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2080 powershell.exe Token: SeDebugPrivilege 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Token: SeImpersonatePrivilege 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe Token: SeDebugPrivilege 1568 powershell.exe Token: SeDebugPrivilege 3924 powershell.exe Token: SeDebugPrivilege 2460 powershell.exe Token: SeDebugPrivilege 4104 powershell.exe Token: SeDebugPrivilege 3156 powershell.exe Token: SeDebugPrivilege 916 powershell.exe Token: SeSystemEnvironmentPrivilege 540 csrss.exe Token: SeSecurityPrivilege 2820 sc.exe Token: SeSecurityPrivilege 2820 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1884 wrote to memory of 2080 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 81 PID 1884 wrote to memory of 2080 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 81 PID 1884 wrote to memory of 2080 1884 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 81 PID 4668 wrote to memory of 1568 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 86 PID 4668 wrote to memory of 1568 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 86 PID 4668 wrote to memory of 1568 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 86 PID 4668 wrote to memory of 2600 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 88 PID 4668 wrote to memory of 2600 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 88 PID 2600 wrote to memory of 4556 2600 cmd.exe 90 PID 2600 wrote to memory of 4556 2600 cmd.exe 90 PID 4668 wrote to memory of 3924 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 91 PID 4668 wrote to memory of 3924 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 91 PID 4668 wrote to memory of 3924 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 91 PID 4668 wrote to memory of 2460 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 93 PID 4668 wrote to memory of 2460 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 93 PID 4668 wrote to memory of 2460 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 93 PID 4668 wrote to memory of 540 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 95 PID 4668 wrote to memory of 540 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 95 PID 4668 wrote to memory of 540 4668 553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe 95 PID 540 wrote to memory of 4104 540 csrss.exe 96 PID 540 wrote to memory of 4104 540 csrss.exe 96 PID 540 wrote to memory of 4104 540 csrss.exe 96 PID 540 wrote to memory of 3156 540 csrss.exe 102 PID 540 wrote to memory of 3156 540 csrss.exe 102 PID 540 wrote to memory of 3156 540 csrss.exe 102 PID 540 wrote to memory of 916 540 csrss.exe 104 PID 540 wrote to memory of 916 540 csrss.exe 104 PID 540 wrote to memory of 916 540 csrss.exe 104 PID 540 wrote to memory of 5100 540 csrss.exe 106 PID 540 wrote to memory of 5100 540 csrss.exe 106 PID 2856 wrote to memory of 4960 2856 windefender.exe 112 PID 2856 wrote to memory of 4960 2856 windefender.exe 112 PID 2856 wrote to memory of 4960 2856 windefender.exe 112 PID 4960 wrote to memory of 2820 4960 cmd.exe 113 PID 4960 wrote to memory of 2820 4960 cmd.exe 113 PID 4960 wrote to memory of 2820 4960 cmd.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe"C:\Users\Admin\AppData\Local\Temp\553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2080
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C:\Users\Admin\AppData\Local\Temp\553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.exe"C:\Users\Admin\AppData\Local\Temp\553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749.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:4668 -
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:1568
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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:2600 -
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:4556
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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:3924
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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:2460
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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:540 -
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:4104
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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:1112
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4280
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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:3156
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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:916
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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:5100
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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:2348
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2856 -
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:4960 -
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:2820
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3232
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
MD5158861565d37781adbf55e033f9b24b8
SHA179d1342c82feb01047d92b00491dc05335f7f92b
SHA25689e79685dd4cafbc4f6dd674418f80069cf21f54a41e0209c867d4dc265650ab
SHA5124b52b612bb8d510dc100a53e07eae0484b680e6a179cb7e38f6a8b7e95b45b99cd0bbb1bd640b515e12b7ee656b06abaded155086fefb9039a7fe7d5446ec05d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD53cab20c62aa0af11d1a6fab84e9c01d4
SHA15154b4da8ca9f163b5866704dd1d2e27485dca44
SHA25606abf55acd6d5764510e83a9cdab553488fbe4430de3ea1f34fc4ace029b48e4
SHA512d66673801a81f43df4f32ef0e9c0454d29059747627643d256660ab6a9f8d72af4de00c73a7692ead6e7fb340c9fc2228d66b23600b35484795ea1c377e999fd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a7512555c5ad641ed0a528ff65c07fba
SHA1a84501f34a0624903a43f573e704513deab8fd06
SHA2566e1a36bdcb6265f82b3e4d3603db1a3fd310defb04845776250f770a3c468a90
SHA5124139e455a9c0b33bf4a7ed39769bdee8f1d55126a48323f4aabfc6ed17ce54c9d3ee070bb5a303273f596696bc3e1b333324d839f06ae37c35d3f9622bf14194
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD52611a8ea27773affc089704dfffec5dd
SHA1ff39dfca1db9c1e82a972414eddd4d5d9d3d104d
SHA256bacb021f12e44088a78806a7192b83695bcfbe554127cf1ff3e594df27939593
SHA5126fff6e4931422009c71a5b08621a3e6812896746503210819c54afddb4588384605f301d6ea8fdfab3a20c65f54e100f88816dd12f4f50eb9f2f16dc6fa8072d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b9233ab682fcf5c8da0deb8f4a70fbcb
SHA19cd6e291d986da841c61d6362411b4da062b5276
SHA256ebdbe0e3fb9add97a488d1b0fa2b2e51ffa0daa9e05a1c4cde27a7ca24bf436c
SHA512006b6a261d30a46b775c354093716caa0509d49fc284252e07857d4a913e8c987ec865a855f959bb20545dfeab6ebc2146398945c4fd6e84f16b4e8eb5406e3f
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Filesize
4.1MB
MD51b938772e4f31d14d3f4bc10ae69d1d2
SHA15948de868bdfd7aa308807f73b7917b5dd287023
SHA256553c86acdaa89e510dafa835535b40053b8a4fb378a0924fffe60037d1ba4749
SHA5121be4e72b1bc7bd84175c18dbc0d7ff2ac2fb94b90a2e6b84f2a770bc687ac4a188d447afc6b2804c52ef75449ebac5acd3467f0f11ed6f729851960f8a1dca32
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec