Analysis
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max time kernel
150s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 11:38
Static task
static1
Behavioral task
behavioral1
Sample
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe
Resource
win10v2004-20240508-en
General
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Target
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe
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Size
4.1MB
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MD5
4634699a081c4ecbaf4f703774df0b5f
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SHA1
118f2688b5e3d0986ee561baa7af6dd453b5bd26
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SHA256
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295
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SHA512
d8b9761da7dcc2993d340236b95504a1dc37f00fd486d49ec561cf452a3b428d6178551eab937ba28b795488bc5590d38206aa52c5faf450de2bfaae61fa88e8
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SSDEEP
98304:+k/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6d:+n6bazjovoyoHfX3/GYHa
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3412-2-0x0000000004530000-0x0000000004E1B000-memory.dmp family_glupteba behavioral2/memory/3412-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3412-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3412-54-0x0000000004530000-0x0000000004E1B000-memory.dmp family_glupteba behavioral2/memory/3412-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/444-126-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-205-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-216-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-218-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-224-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-232-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2940-237-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2444 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2940 csrss.exe 4060 injector.exe 3796 windefender.exe 3384 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000400000002aa87-208.dat upx behavioral2/memory/3796-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3384-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3796-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3384-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3384-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\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.
Processes:
csrss.exedescription ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe 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.
Processes:
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe -
Drops file in Windows directory 4 IoCs
Processes:
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe File created C:\Windows\rss\csrss.exe 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.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.
Processes:
sc.exepid Process 2312 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4576 powershell.exe 3592 powershell.exe 2340 powershell.exe 1556 powershell.exe 3124 powershell.exe 2828 powershell.exe 576 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 3412 schtasks.exe 3780 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exepowershell.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.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 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.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\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.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,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard 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,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard 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\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,-722 = "Central Pacific Standard Time" windefender.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,-2341 = "Haiti Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-591 = "Malay Peninsula Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2182 = "Astrakhan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exepowershell.exe12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1556 powershell.exe 1556 powershell.exe 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 3124 powershell.exe 3124 powershell.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 2828 powershell.exe 2828 powershell.exe 576 powershell.exe 576 powershell.exe 4576 powershell.exe 4576 powershell.exe 3592 powershell.exe 3592 powershell.exe 2340 powershell.exe 2340 powershell.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 2940 csrss.exe 2940 csrss.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 2940 csrss.exe 2940 csrss.exe 4060 injector.exe 4060 injector.exe 2940 csrss.exe 2940 csrss.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe 4060 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1556 powershell.exe Token: SeDebugPrivilege 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Token: SeImpersonatePrivilege 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe Token: SeDebugPrivilege 3124 powershell.exe Token: SeDebugPrivilege 2828 powershell.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 4576 powershell.exe Token: SeDebugPrivilege 3592 powershell.exe Token: SeDebugPrivilege 2340 powershell.exe Token: SeSystemEnvironmentPrivilege 2940 csrss.exe Token: SeSecurityPrivilege 2312 sc.exe Token: SeSecurityPrivilege 2312 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3412 wrote to memory of 1556 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 82 PID 3412 wrote to memory of 1556 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 82 PID 3412 wrote to memory of 1556 3412 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 82 PID 444 wrote to memory of 3124 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 87 PID 444 wrote to memory of 3124 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 87 PID 444 wrote to memory of 3124 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 87 PID 444 wrote to memory of 2500 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 89 PID 444 wrote to memory of 2500 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 89 PID 2500 wrote to memory of 2444 2500 cmd.exe 91 PID 2500 wrote to memory of 2444 2500 cmd.exe 91 PID 444 wrote to memory of 2828 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 92 PID 444 wrote to memory of 2828 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 92 PID 444 wrote to memory of 2828 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 92 PID 444 wrote to memory of 576 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 94 PID 444 wrote to memory of 576 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 94 PID 444 wrote to memory of 576 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 94 PID 444 wrote to memory of 2940 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 96 PID 444 wrote to memory of 2940 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 96 PID 444 wrote to memory of 2940 444 12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe 96 PID 2940 wrote to memory of 4576 2940 csrss.exe 97 PID 2940 wrote to memory of 4576 2940 csrss.exe 97 PID 2940 wrote to memory of 4576 2940 csrss.exe 97 PID 2940 wrote to memory of 3592 2940 csrss.exe 102 PID 2940 wrote to memory of 3592 2940 csrss.exe 102 PID 2940 wrote to memory of 3592 2940 csrss.exe 102 PID 2940 wrote to memory of 2340 2940 csrss.exe 105 PID 2940 wrote to memory of 2340 2940 csrss.exe 105 PID 2940 wrote to memory of 2340 2940 csrss.exe 105 PID 2940 wrote to memory of 4060 2940 csrss.exe 107 PID 2940 wrote to memory of 4060 2940 csrss.exe 107 PID 3796 wrote to memory of 4740 3796 windefender.exe 114 PID 3796 wrote to memory of 4740 3796 windefender.exe 114 PID 3796 wrote to memory of 4740 3796 windefender.exe 114 PID 4740 wrote to memory of 2312 4740 cmd.exe 115 PID 4740 wrote to memory of 2312 4740 cmd.exe 115 PID 4740 wrote to memory of 2312 4740 cmd.exe 115 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe"C:\Users\Admin\AppData\Local\Temp\12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3412 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1556
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C:\Users\Admin\AppData\Local\Temp\12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.exe"C:\Users\Admin\AppData\Local\Temp\12bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295.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:444 -
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:3124
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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:2500 -
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:2444
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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:2828
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:576
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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:2940 -
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:4576
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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:3412
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1400
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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:3592
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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:2340
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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:4060
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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:3780
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3796 -
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:4740 -
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:2312
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3384
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD54e5aedbff41737805184323fe1bc7907
SHA1307f0581bdcdd55045af4a5816ab6d4a82a3c0ec
SHA256bf41849a4a1dee418fce2cef9a0bf1e81631837049f61a6bd74150f37b0a0c6c
SHA512312d5c5d667865cfdc7d6ec269dd4e61ae139538c2594eb3c8305295ef54118150618ec9bdd863fbb9aed302c93070d87aba3127e1f301c6fe64341adf524df4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581c5d9a7aedb2bead213540d44089198
SHA10033020c83802cda07ffa9fe5c82bcefad6ac681
SHA256adb92f6a29b7194dcd6583a579648d5d2628f4920fc2d6e61f658d816e14b0f7
SHA512c6419367dcf12776ad60a3788b4f11967d5d4aa803545b4052d384c0419c02d87a7c44b9c82b80bc76f00159850c0e6cb36c0eed108a78e4d14020228e176a35
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5eeadd5ae478064fb50d8d653597ca9ba
SHA1564cd4c80deccc57b0f53ba2a0f0c767b6bd8626
SHA2561ebb5fd0d574dc1e075fc655f35ea75799a722b5aef2018383095bed055f7dbd
SHA51298be7ffd4573a97551dc8edffa1bd4b349617a3a1784138d233ba6aa42714ab63770eb6fd37fe8fca0591952bde6001f1ce8e43e6597b5e2e9ecd75d7b3a429d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c38da20f116780042553f0fcc0ac45e3
SHA12b7ae35a596c23db02e1d414ae52f64c7f3ea223
SHA2567b47fdf7c7a9834c6980653460334f74f07df674ed0b05af29ca6bfd672d6373
SHA512db40e0fbe4cb75535acddc40a5d78ce0e9ad26e976323f47e4e0af7416fabe5801cdc52b9df9a67b12b2ba71e6fcfdb2f797af3a2b84bb8943a1abb897bf6a84
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56372bdc4a333e543621a664e5b3d8e36
SHA1a5cf354d740ac82c4b2fb9ae1870aa7a388637a9
SHA2568a8a5f1d0939d4818d8ae0f4bf8d74d13293d3b69585a5c3552592894708daff
SHA5128e551beb1e904f991a3af306481ecfb9298cbc1420b79f430c5396fcde835f63636df85a1cf5fc8fa3089103fa1eb4d3966125b8b3c4446c41ea097d6dd85d0d
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Filesize
4.1MB
MD54634699a081c4ecbaf4f703774df0b5f
SHA1118f2688b5e3d0986ee561baa7af6dd453b5bd26
SHA25612bf37a2af7e3f4ab1a4aaa7f085fe1d471c2e93b6a6de6ff513b071a4dd5295
SHA512d8b9761da7dcc2993d340236b95504a1dc37f00fd486d49ec561cf452a3b428d6178551eab937ba28b795488bc5590d38206aa52c5faf450de2bfaae61fa88e8
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec