Analysis
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max time kernel
150s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240319-en -
resource tags
arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system -
submitted
25/03/2024, 11:03
Static task
static1
Behavioral task
behavioral1
Sample
a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe
Resource
win10v2004-20240226-en
General
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Target
a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe
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Size
4.2MB
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MD5
a5cdccbfabefcab6be444bb180f93223
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SHA1
ff7a4adbee7383b583795db057777bc665b1eaf9
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SHA256
a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d
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SHA512
8c0ad5a6d4c1a5c4d7da6481bd54ce7d8f5cdfc0625bc1ce02938078485ec1259fcbc7213082fb1b5456de79a62f0062bd392a98032e86bd02e9cddb2b7c3764
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SSDEEP
98304:/ce/e22/DMisYc6osvytXCvy57VLe0inWOz33pk:P2/DnsYc6rvyFj57VL8TK
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral2/memory/4320-2-0x0000000003100000-0x00000000039EB000-memory.dmp family_glupteba behavioral2/memory/4320-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4320-48-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4320-55-0x0000000003100000-0x00000000039EB000-memory.dmp family_glupteba behavioral2/memory/3112-56-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4320-57-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3112-116-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3112-117-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3112-177-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-206-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-253-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-257-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-261-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-265-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-269-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-273-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-277-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-281-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-285-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/808-289-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 5076 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 808 csrss.exe 3044 injector.exe 2036 windefender.exe 1880 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7eb-246.dat upx behavioral2/memory/2036-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1880-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1880-264-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1880-276-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\S-1-5-21-1233663403-1277323514-675434005-1000\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 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 -
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 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe -
Drops file in Windows directory 4 IoCs
description ioc Process 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 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe File created C:\Windows\rss\csrss.exe a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5044 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 924 schtasks.exe 3720 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.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\22\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2002 = "Cabo Verde Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-91 = "Pacific SA Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-152 = "Central America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates 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\22\52C64B7E\@tzres.dll,-2572 = "Turks and Caicos Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.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\22\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1721 = "Libya Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-71 = "Newfoundland Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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\22\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4956 powershell.exe 4956 powershell.exe 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 4440 powershell.exe 4440 powershell.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 2384 powershell.exe 2384 powershell.exe 1444 powershell.exe 1444 powershell.exe 2132 powershell.exe 2132 powershell.exe 3124 powershell.exe 3124 powershell.exe 3528 powershell.exe 3528 powershell.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 808 csrss.exe 808 csrss.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 808 csrss.exe 808 csrss.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 808 csrss.exe 808 csrss.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe 3044 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4956 powershell.exe Token: SeDebugPrivilege 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Token: SeImpersonatePrivilege 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe Token: SeDebugPrivilege 4440 powershell.exe Token: SeDebugPrivilege 2384 powershell.exe Token: SeDebugPrivilege 1444 powershell.exe Token: SeDebugPrivilege 2132 powershell.exe Token: SeDebugPrivilege 3124 powershell.exe Token: SeDebugPrivilege 3528 powershell.exe Token: SeSystemEnvironmentPrivilege 808 csrss.exe Token: SeSecurityPrivilege 5044 sc.exe Token: SeSecurityPrivilege 5044 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4320 wrote to memory of 4956 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 78 PID 4320 wrote to memory of 4956 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 78 PID 4320 wrote to memory of 4956 4320 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 78 PID 3112 wrote to memory of 4440 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 83 PID 3112 wrote to memory of 4440 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 83 PID 3112 wrote to memory of 4440 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 83 PID 3112 wrote to memory of 3720 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 85 PID 3112 wrote to memory of 3720 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 85 PID 3720 wrote to memory of 5076 3720 cmd.exe 87 PID 3720 wrote to memory of 5076 3720 cmd.exe 87 PID 3112 wrote to memory of 2384 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 88 PID 3112 wrote to memory of 2384 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 88 PID 3112 wrote to memory of 2384 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 88 PID 3112 wrote to memory of 1444 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 90 PID 3112 wrote to memory of 1444 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 90 PID 3112 wrote to memory of 1444 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 90 PID 3112 wrote to memory of 808 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 92 PID 3112 wrote to memory of 808 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 92 PID 3112 wrote to memory of 808 3112 a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe 92 PID 808 wrote to memory of 2132 808 csrss.exe 93 PID 808 wrote to memory of 2132 808 csrss.exe 93 PID 808 wrote to memory of 2132 808 csrss.exe 93 PID 808 wrote to memory of 3124 808 csrss.exe 99 PID 808 wrote to memory of 3124 808 csrss.exe 99 PID 808 wrote to memory of 3124 808 csrss.exe 99 PID 808 wrote to memory of 3528 808 csrss.exe 101 PID 808 wrote to memory of 3528 808 csrss.exe 101 PID 808 wrote to memory of 3528 808 csrss.exe 101 PID 808 wrote to memory of 3044 808 csrss.exe 103 PID 808 wrote to memory of 3044 808 csrss.exe 103 PID 2036 wrote to memory of 4100 2036 windefender.exe 109 PID 2036 wrote to memory of 4100 2036 windefender.exe 109 PID 2036 wrote to memory of 4100 2036 windefender.exe 109 PID 4100 wrote to memory of 5044 4100 cmd.exe 110 PID 4100 wrote to memory of 5044 4100 cmd.exe 110 PID 4100 wrote to memory of 5044 4100 cmd.exe 110 -
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\a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe"C:\Users\Admin\AppData\Local\Temp\a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4320 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4956
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C:\Users\Admin\AppData\Local\Temp\a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.exe"C:\Users\Admin\AppData\Local\Temp\a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d.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:3112 -
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:4440
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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:3720 -
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:5076
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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:2384
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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:1444
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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:808 -
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:2132
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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:924
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1856
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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:3124
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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:3528
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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:3044
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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:3720
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2036 -
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:4100 -
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:5044
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1880
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
MD56782fb7038c54a5b27511d5004d1f04d
SHA1d490a5578e89cad43030f5de2024072445684e5b
SHA2564cf34bb7b405863fc315fad33771a3f65c33f69e9a737148ab422aaf380728c1
SHA512b49329a98a94c742938c2786c1b9c62b30b08504cd6f180aac9a0e52e9d9b983015cc93fae61932a689e76cbcfbe8af73cacdc9b0fc843a67e7b7d66c64c7b48
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD571717555888ed9508e821c8ec033f1c9
SHA1d076bbccf0710f747d42d26cb8b5e0d8fe846102
SHA25690fca8fe02d199812133d2999b74dc9baa3c8f58aa6eccbf93a54b90c3c5e636
SHA51232d90a6a851f4abe40229c6767743ab62f94d0e7f162ca763c326faabb8a308ff59bc7191ae22bd8d8e1df935ba00552ae3ad899c0d1b27cda5f8a343efb4700
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5237599b1b3a88af625b79eeb0074be06
SHA16620ce3d630c0cd16f146cab55ceaea0fcd3fe93
SHA2562590f26c963544a17cf82fe5d1aed4b5c30f0d7888ff703ccc7761a41f2a0ed5
SHA5122d63615e12c5e4c7bb4fcf395e783b7e24b6f10e0208b372d4db2b3dc9466a7db1d3968d6ac8c0140243bf7bcb361a1d0ba5408b0db3e9789594285683d1910c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59605bc877ed66e93c38fdc4dccabfb2f
SHA12351cae2adebb1e8e603abc3913687fd75331c25
SHA256e9ec601793a89d27c3d5faaf4e29a4e8d45d3a952b0d38fae0a4fcba9ecd4f64
SHA512b59112c83080ad22926a43225c6eba07888e37297bf362ac8e35273b8d947fc01778ddb02d76681e5336dc6421d65098bc870501bee276c91e6f155a2931e65e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5de1ea1221c2451173faf1db568d41ab6
SHA1694c12fe19c4f8d4282ea1e5d8344131cc162a8f
SHA256d94cedec9c2d6c1cd6f10252df8045c0d6847d69c26c12f052d99af2df8993fb
SHA5122de882c51d5ef2e3f6a6bf1467df7a78103a5d4630ddf2f0aab261f5e360380bffa003043e3c0fc57f0ba3a8c9dee17f1ff087cdbcf276fa6b8a627be9265982
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Filesize
4.2MB
MD5a5cdccbfabefcab6be444bb180f93223
SHA1ff7a4adbee7383b583795db057777bc665b1eaf9
SHA256a762d735d5bdb9a4302bea7b5656fd48062ff8f656639bbcbb078039fa49e57d
SHA5128c0ad5a6d4c1a5c4d7da6481bd54ce7d8f5cdfc0625bc1ce02938078485ec1259fcbc7213082fb1b5456de79a62f0062bd392a98032e86bd02e9cddb2b7c3764
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec