Analysis
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max time kernel
150s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
04/10/2023, 02:04
Static task
static1
Behavioral task
behavioral1
Sample
18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe
Resource
win7-20230831-en
General
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Target
18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe
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Size
4.1MB
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MD5
fb1380093396eab9e257d37acc2ab270
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SHA1
f2decc25c907196a0d01cc998e7d9a5b97800468
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SHA256
18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d
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SHA512
704d9bce300c5ef386fec60b11b60271a5c3d1e4dcb6587380b97a08fb5fb9dea675f9d1a5531a2e9e92cec1827a2213f31504077fcf6985ac8d5b2d6a2d2bad
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SSDEEP
98304:8hn2T18Yb4JyIWEmssSxt0F8FY2C4bbQN69ZVXo:8hn2J88UyIWEmoSF8FGobQN0ZK
Malware Config
Signatures
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Glupteba payload 21 IoCs
resource yara_rule behavioral2/memory/3852-2-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/3852-3-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3852-4-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3852-31-0x0000000004CF0000-0x00000000055DB000-memory.dmp family_glupteba behavioral2/memory/3852-35-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3852-52-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3852-62-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/656-64-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/656-80-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/656-110-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/656-131-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/656-162-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-168-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-269-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-270-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-271-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-280-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-282-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-284-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-286-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba behavioral2/memory/3896-288-0x0000000000400000-0x0000000002817000-memory.dmp family_glupteba -
Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 4704 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3896 csrss.exe 1036 injector.exe 4880 windefender.exe 1260 windefender.exe -
resource yara_rule behavioral2/files/0x00100000000231e9-274.dat upx behavioral2/files/0x00100000000231e9-276.dat upx behavioral2/files/0x00100000000231e9-277.dat upx behavioral2/memory/4880-279-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1260-281-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1260-285-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.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 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe File created C:\Windows\rss\csrss.exe 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1028 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4496 3852 WerFault.exe 84 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3640 schtasks.exe 2392 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-331 = "E. Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1722 = "Libya Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\1e\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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\1e\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.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\1e\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3444 powershell.exe 3444 powershell.exe 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 3676 powershell.exe 3676 powershell.exe 3676 powershell.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 3480 powershell.exe 3480 powershell.exe 3480 powershell.exe 1576 powershell.exe 1576 powershell.exe 1576 powershell.exe 4444 powershell.exe 4444 powershell.exe 4444 powershell.exe 1080 powershell.exe 1080 powershell.exe 1080 powershell.exe 4648 powershell.exe 4648 powershell.exe 4648 powershell.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 3896 csrss.exe 3896 csrss.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 3896 csrss.exe 3896 csrss.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe 1036 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3444 powershell.exe Token: SeDebugPrivilege 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Token: SeImpersonatePrivilege 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe Token: SeDebugPrivilege 3676 powershell.exe Token: SeDebugPrivilege 3480 powershell.exe Token: SeDebugPrivilege 1576 powershell.exe Token: SeDebugPrivilege 4444 powershell.exe Token: SeDebugPrivilege 1080 powershell.exe Token: SeDebugPrivilege 4648 powershell.exe Token: SeSystemEnvironmentPrivilege 3896 csrss.exe Token: SeSecurityPrivilege 1028 sc.exe Token: SeSecurityPrivilege 1028 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3852 wrote to memory of 3444 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 94 PID 3852 wrote to memory of 3444 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 94 PID 3852 wrote to memory of 3444 3852 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 94 PID 656 wrote to memory of 3676 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 104 PID 656 wrote to memory of 3676 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 104 PID 656 wrote to memory of 3676 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 104 PID 656 wrote to memory of 2864 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 108 PID 656 wrote to memory of 2864 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 108 PID 2864 wrote to memory of 4704 2864 cmd.exe 109 PID 2864 wrote to memory of 4704 2864 cmd.exe 109 PID 656 wrote to memory of 3480 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 111 PID 656 wrote to memory of 3480 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 111 PID 656 wrote to memory of 3480 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 111 PID 656 wrote to memory of 1576 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 112 PID 656 wrote to memory of 1576 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 112 PID 656 wrote to memory of 1576 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 112 PID 656 wrote to memory of 3896 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 114 PID 656 wrote to memory of 3896 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 114 PID 656 wrote to memory of 3896 656 18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe 114 PID 3896 wrote to memory of 4444 3896 csrss.exe 115 PID 3896 wrote to memory of 4444 3896 csrss.exe 115 PID 3896 wrote to memory of 4444 3896 csrss.exe 115 PID 3896 wrote to memory of 1080 3896 csrss.exe 121 PID 3896 wrote to memory of 1080 3896 csrss.exe 121 PID 3896 wrote to memory of 1080 3896 csrss.exe 121 PID 3896 wrote to memory of 4648 3896 csrss.exe 123 PID 3896 wrote to memory of 4648 3896 csrss.exe 123 PID 3896 wrote to memory of 4648 3896 csrss.exe 123 PID 3896 wrote to memory of 1036 3896 csrss.exe 127 PID 3896 wrote to memory of 1036 3896 csrss.exe 127 PID 4880 wrote to memory of 1764 4880 windefender.exe 132 PID 4880 wrote to memory of 1764 4880 windefender.exe 132 PID 4880 wrote to memory of 1764 4880 windefender.exe 132 PID 1764 wrote to memory of 1028 1764 cmd.exe 133 PID 1764 wrote to memory of 1028 1764 cmd.exe 133 PID 1764 wrote to memory of 1028 1764 cmd.exe 133 -
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\18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe"C:\Users\Admin\AppData\Local\Temp\18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3852 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3444
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C:\Users\Admin\AppData\Local\Temp\18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.exe"C:\Users\Admin\AppData\Local\Temp\18acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d.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:656 -
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:3676
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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:2864 -
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:4704
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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:3480
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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:1576
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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:3896 -
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:4444
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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:3640
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3688
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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:1080
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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:4648
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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:1036
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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:2392
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4880 -
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:1764 -
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:1028
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 8242⤵
- Program crash
PID:4496
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3852 -ip 38521⤵PID:4892
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1260
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
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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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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD574084d8a3efdf7bfb50b087e193598c3
SHA16a698a5d3d25d684cb7d148c8178bfbc5190d888
SHA256db4d1162ce68057173ac33df30175b78782f44388bf764b1abee92e459171740
SHA5125c3708dec672813d690b8e0d6e90a5f2fb26d8cb718a486f6ffe834121fc9b5af7488e24d94be49735a3553471f065030675c03ce87b309e982df2aa58a57ee2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b27f98ea45b17af4179c4211b3b7a3ee
SHA12533a5a18d54a0d7e3791394976f512ef8ded66b
SHA256fdce6c35e106a68c87b7daf441c3036e7aa8620e91bc4f34b504c776e271d8ab
SHA512bbcbfc9fbc45b4f2155f998ca6bcc0c794d55699205bdcc22cad5336767c87ec25af88e3303846e38d666cd02005db94a8257f1adb00e1fd6430c78a34f3a2e3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5db2b370533c98b1fa7e32427b7488ba5
SHA149b805d28de7e032bfd58533b216c8a265c48894
SHA2560f732bb6c8813ec191b3b0df7a11caf5d5f9c17db43731a039099dad0a7d07a5
SHA512aa92a55f3f776f23d49fb08aa18b29b9f14b2cfde78886155bb7e7ef27736d42f3f9579e28d9f97e36ab502d2262c7a1ecbf0b7b8c4a9160e9c9957db097ce97
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f48caca724cdc969feb962dff8be512a
SHA194d789373529126fb384d4dd1257b91645c46215
SHA256a2d0cba9f7794746173e482495c41f45fce61dc18f8a7e2acf9098398ea9a5d3
SHA512623d8509ca43747c88d31240cc99af439027cc0cd06924f9405ed6dd0dda17019d641bf7eba1460498a2513fddcced2ff4e27797faac02e9dcb9c6399827ca9a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e7a145f136acd7beadbd0e5d291db77b
SHA104a8c9977a8bd2cc7e6be4999b5fcc1bcd993b23
SHA256c51bd001a251e0808dca14758e41ca38eaf9dac1258db2116e80341179246dc2
SHA5128f736e412cc536015242d9dc683577bfa4bc2e5d6d0a7f67490355a824e68a4e49dda899e3d30bbbdc0eec297dff09e4f8b587f29091649ff57a20f549fc2cae
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Filesize
4.1MB
MD5fb1380093396eab9e257d37acc2ab270
SHA1f2decc25c907196a0d01cc998e7d9a5b97800468
SHA25618acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d
SHA512704d9bce300c5ef386fec60b11b60271a5c3d1e4dcb6587380b97a08fb5fb9dea675f9d1a5531a2e9e92cec1827a2213f31504077fcf6985ac8d5b2d6a2d2bad
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Filesize
4.1MB
MD5fb1380093396eab9e257d37acc2ab270
SHA1f2decc25c907196a0d01cc998e7d9a5b97800468
SHA25618acbe225a09abaf3a67f12e79b67d498b3d809faa526b69b40170f4a7beff0d
SHA512704d9bce300c5ef386fec60b11b60271a5c3d1e4dcb6587380b97a08fb5fb9dea675f9d1a5531a2e9e92cec1827a2213f31504077fcf6985ac8d5b2d6a2d2bad
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec