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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
03/05/2024, 09:43
Static task
static1
Behavioral task
behavioral1
Sample
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe
Resource
win10v2004-20240419-en
General
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Target
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe
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Size
4.2MB
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MD5
0d5c98c75d465b58632aabc4a2989e93
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SHA1
ce01235cb3ad0ba4ff7a4236996b382332d95152
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SHA256
a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b
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SHA512
220910ac191a891db32f7f2064815effebad513ee82305d165d2ed6804c69c1bb52834ea53381002842748f4f5079680adeeac59ec2b4d66f33af5d09e9c3b2c
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SSDEEP
98304:oNNd1Yg/NqsES5dm6JUPGFLEW52dvQ3lbZBO4k1BLVdUTaut3GMl1GZi:C1YgF77m6JcW6vIbMV275GMl1GZi
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1472-2-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/1472-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1472-53-0x0000000003F10000-0x00000000047FB000-memory.dmp family_glupteba behavioral2/memory/1472-51-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/1472-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/736-151-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-205-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-215-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-219-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-222-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-224-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-226-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-231-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-234-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-236-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-238-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-243-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-246-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba behavioral2/memory/4964-248-0x0000000000400000-0x0000000001DFE000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1764 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4964 csrss.exe 4584 injector.exe 4372 windefender.exe 4924 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa1d-209.dat upx behavioral2/memory/4372-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4372-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4924-217-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4924-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4924-232-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\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 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 -
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 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.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 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe File created C:\Windows\rss\csrss.exe a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2748 sc.exe -
pid Process 1028 powershell.exe 816 powershell.exe 3828 powershell.exe 4124 powershell.exe 2616 powershell.exe 3288 powershell.exe 244 powershell.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3236 schtasks.exe 2772 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2632 = "Norfolk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-82 = "Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.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,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-352 = "FLE Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard 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\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-571 = "China Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3828 powershell.exe 3828 powershell.exe 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 4124 powershell.exe 4124 powershell.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 2616 powershell.exe 2616 powershell.exe 3288 powershell.exe 3288 powershell.exe 244 powershell.exe 244 powershell.exe 1028 powershell.exe 1028 powershell.exe 816 powershell.exe 816 powershell.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4964 csrss.exe 4964 csrss.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4964 csrss.exe 4964 csrss.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4964 csrss.exe 4964 csrss.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe 4584 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3828 powershell.exe Token: SeDebugPrivilege 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Token: SeImpersonatePrivilege 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe Token: SeDebugPrivilege 4124 powershell.exe Token: SeDebugPrivilege 2616 powershell.exe Token: SeDebugPrivilege 3288 powershell.exe Token: SeDebugPrivilege 244 powershell.exe Token: SeDebugPrivilege 1028 powershell.exe Token: SeDebugPrivilege 816 powershell.exe Token: SeSystemEnvironmentPrivilege 4964 csrss.exe Token: SeSecurityPrivilege 2748 sc.exe Token: SeSecurityPrivilege 2748 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1472 wrote to memory of 3828 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 78 PID 1472 wrote to memory of 3828 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 78 PID 1472 wrote to memory of 3828 1472 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 78 PID 736 wrote to memory of 4124 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 83 PID 736 wrote to memory of 4124 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 83 PID 736 wrote to memory of 4124 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 83 PID 736 wrote to memory of 4164 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 85 PID 736 wrote to memory of 4164 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 85 PID 4164 wrote to memory of 1764 4164 cmd.exe 87 PID 4164 wrote to memory of 1764 4164 cmd.exe 87 PID 736 wrote to memory of 2616 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 736 wrote to memory of 2616 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 736 wrote to memory of 2616 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 88 PID 736 wrote to memory of 3288 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 90 PID 736 wrote to memory of 3288 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 90 PID 736 wrote to memory of 3288 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 90 PID 736 wrote to memory of 4964 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 92 PID 736 wrote to memory of 4964 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 92 PID 736 wrote to memory of 4964 736 a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe 92 PID 4964 wrote to memory of 244 4964 csrss.exe 93 PID 4964 wrote to memory of 244 4964 csrss.exe 93 PID 4964 wrote to memory of 244 4964 csrss.exe 93 PID 4964 wrote to memory of 1028 4964 csrss.exe 99 PID 4964 wrote to memory of 1028 4964 csrss.exe 99 PID 4964 wrote to memory of 1028 4964 csrss.exe 99 PID 4964 wrote to memory of 816 4964 csrss.exe 101 PID 4964 wrote to memory of 816 4964 csrss.exe 101 PID 4964 wrote to memory of 816 4964 csrss.exe 101 PID 4964 wrote to memory of 4584 4964 csrss.exe 103 PID 4964 wrote to memory of 4584 4964 csrss.exe 103 PID 4372 wrote to memory of 4124 4372 windefender.exe 109 PID 4372 wrote to memory of 4124 4372 windefender.exe 109 PID 4372 wrote to memory of 4124 4372 windefender.exe 109 PID 4124 wrote to memory of 2748 4124 cmd.exe 110 PID 4124 wrote to memory of 2748 4124 cmd.exe 110 PID 4124 wrote to memory of 2748 4124 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\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3828
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C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.exe"C:\Users\Admin\AppData\Local\Temp\a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b.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:736 -
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:4124
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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:4164 -
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:1764
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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:2616
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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:3288
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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:4964 -
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:244
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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:3236
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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
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1028
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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:816
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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:4584
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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:2772
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4372 -
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:4124 -
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:2748
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4924
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
MD55952e8e85a7576f6dce613becbd8d9b8
SHA14bf340a50735ea4f17aa40b3b5f20de8597d57f2
SHA2563eb32291225b855c3dee6791c7d7bfe77854d1f3d96b21c7996ca90114bb3807
SHA51200f0bcc2f69a4469b3f208c597e22ca840d0cab0dd4d4a4cfe4737f58191c37c17b2b02b746bce3e9fa5e37f48ebae41a9c9dad1def896a60cbf090180c08ef0
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fddd2cb098700a2b0182ed9d884d3e5c
SHA1e2b97561c627ab28fca3f25ea4c98ef54c82e01d
SHA25699a4c2d01be3a2ca8e26e3550bbd8ba5ca37e1b1e0f8a0e929327cae50ca38f6
SHA512f4f2dd81ab7b86876404d67749ecf09e3b4453218332060d8f58d41792927170fe8ecc889ab86ff4b0befcff4812c16911caf63702c08bcc040bdca3b53fcf64
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c86e202ad6c3a7673b4c52a3ff0e738f
SHA152112e5948833245516a256ff86e6ad5f0e21887
SHA2566c743939dc63c380ea91467be69f10df454b7ee67a35b9c574a118ff29bdc89a
SHA512b1767119a6d82ad044a9d28bd14f15e1e6c22d6ec45c4aa72dd314d3787026f76ca331b368187184fd9627db10e83d834448b4eab4cf60ac1fe9f940084f1c30
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cd834f2ffc97aead113c5f3f2565c397
SHA1db72ba360bb6878307258413cf78a744d5f93e36
SHA256af4c882fb99d7a16d53f7db23e3020ff3206c302832435852fd4e396e7fa8f10
SHA5126133c26f7ba195604656258a1aa4c04b9a49e30b77853f52357e8e3c15ce4de5242258fcd457ad3255e99b1ec1c3d0b4565082c748231f00dbb50129da59d99d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD549152fa42aa0c8fe4fce4733bc411ada
SHA14fb217685820bc47f2d8b10ba03d692c1e34c963
SHA25691dba0f0d2bcb2cfce90362e062b83226a392ab60888c38825ff1633f48ca018
SHA512ecb933d3e8d6a20a9369f9c78dd4ec60cfb73646dade5a2cfaaf7c7c87eaedbf956490fe339b0f59bc2b5c5c6fffc34d1da34cbab3232c489f1cd5ee06aedf56
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Filesize
4.2MB
MD50d5c98c75d465b58632aabc4a2989e93
SHA1ce01235cb3ad0ba4ff7a4236996b382332d95152
SHA256a1d2bbb13d908fe1a60d3790fdf2fda858a504e8e96d0bc54fc9b21e2440bf7b
SHA512220910ac191a891db32f7f2064815effebad513ee82305d165d2ed6804c69c1bb52834ea53381002842748f4f5079680adeeac59ec2b4d66f33af5d09e9c3b2c
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec