Analysis
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max time kernel
149s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16-05-2024 04:27
Static task
static1
Behavioral task
behavioral1
Sample
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe
Resource
win10v2004-20240508-en
General
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Target
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe
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Size
4.1MB
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MD5
ecdfb00cfd850adbe3a723e2bcb3084e
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SHA1
28186151e349b1a86a227235aac4db1444ee780c
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SHA256
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df
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SHA512
a9d1bf214aae81ac090f65d81b4c0c9a815cceb9fd9a48d8e4853dcd83ba6585fa6488636734363ff37417ec5d548322312e37bec9f739374f8b81c8d0d6a835
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SSDEEP
98304:Z96GAmuNBigEkoqfZTwC6uGlBZNljS4jcy:ZI9hoq9wC6uGlB/xgy
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/1032-2-0x0000000002F10000-0x00000000037FB000-memory.dmp family_glupteba behavioral2/memory/1032-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1032-118-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1032-120-0x0000000002F10000-0x00000000037FB000-memory.dmp family_glupteba behavioral2/memory/2780-126-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-199-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-215-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-218-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-222-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-230-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-234-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-237-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-239-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2448-242-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 4648 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 2448 csrss.exe 1996 injector.exe 4752 windefender.exe 1468 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000300000002aa11-203.dat upx behavioral2/memory/4752-205-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1468-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4752-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1468-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1468-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\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:
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe -
Drops file in Windows directory 4 IoCs
Processes:
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe File created C:\Windows\rss\csrss.exe b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.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 3752 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3316 powershell.exe 4796 powershell.exe 4216 powershell.exe 1072 powershell.exe 2480 powershell.exe 3468 powershell.exe 2288 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 4212 schtasks.exe 4024 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
powershell.exewindefender.exeb8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight 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" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria 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,-1891 = "Russia TZ 3 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1042 = "Ulaanbaatar Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-662 = "Cen. Australia Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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,-201 = "US Mountain Daylight Time" windefender.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,-621 = "Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exeb8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exepowershell.exeb8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 1072 powershell.exe 1072 powershell.exe 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2480 powershell.exe 2480 powershell.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 3468 powershell.exe 3468 powershell.exe 2288 powershell.exe 2288 powershell.exe 3316 powershell.exe 3316 powershell.exe 4796 powershell.exe 4796 powershell.exe 4216 powershell.exe 4216 powershell.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 2448 csrss.exe 2448 csrss.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 2448 csrss.exe 2448 csrss.exe 1996 injector.exe 1996 injector.exe 2448 csrss.exe 2448 csrss.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe 1996 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exeb8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 1072 powershell.exe Token: SeDebugPrivilege 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Token: SeImpersonatePrivilege 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe Token: SeDebugPrivilege 2480 powershell.exe Token: SeDebugPrivilege 3468 powershell.exe Token: SeDebugPrivilege 2288 powershell.exe Token: SeDebugPrivilege 3316 powershell.exe Token: SeDebugPrivilege 4796 powershell.exe Token: SeDebugPrivilege 4216 powershell.exe Token: SeSystemEnvironmentPrivilege 2448 csrss.exe Token: SeSecurityPrivilege 3752 sc.exe Token: SeSecurityPrivilege 3752 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exeb8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 1032 wrote to memory of 1072 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 81 PID 1032 wrote to memory of 1072 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 81 PID 1032 wrote to memory of 1072 1032 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 81 PID 2780 wrote to memory of 2480 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 88 PID 2780 wrote to memory of 2480 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 88 PID 2780 wrote to memory of 2480 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 88 PID 2780 wrote to memory of 4452 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 90 PID 2780 wrote to memory of 4452 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 90 PID 4452 wrote to memory of 4648 4452 cmd.exe 92 PID 4452 wrote to memory of 4648 4452 cmd.exe 92 PID 2780 wrote to memory of 3468 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 94 PID 2780 wrote to memory of 3468 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 94 PID 2780 wrote to memory of 3468 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 94 PID 2780 wrote to memory of 2288 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 98 PID 2780 wrote to memory of 2288 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 98 PID 2780 wrote to memory of 2288 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 98 PID 2780 wrote to memory of 2448 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 100 PID 2780 wrote to memory of 2448 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 100 PID 2780 wrote to memory of 2448 2780 b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe 100 PID 2448 wrote to memory of 3316 2448 csrss.exe 101 PID 2448 wrote to memory of 3316 2448 csrss.exe 101 PID 2448 wrote to memory of 3316 2448 csrss.exe 101 PID 2448 wrote to memory of 4796 2448 csrss.exe 107 PID 2448 wrote to memory of 4796 2448 csrss.exe 107 PID 2448 wrote to memory of 4796 2448 csrss.exe 107 PID 2448 wrote to memory of 4216 2448 csrss.exe 109 PID 2448 wrote to memory of 4216 2448 csrss.exe 109 PID 2448 wrote to memory of 4216 2448 csrss.exe 109 PID 2448 wrote to memory of 1996 2448 csrss.exe 111 PID 2448 wrote to memory of 1996 2448 csrss.exe 111 PID 4752 wrote to memory of 688 4752 windefender.exe 117 PID 4752 wrote to memory of 688 4752 windefender.exe 117 PID 4752 wrote to memory of 688 4752 windefender.exe 117 PID 688 wrote to memory of 3752 688 cmd.exe 118 PID 688 wrote to memory of 3752 688 cmd.exe 118 PID 688 wrote to memory of 3752 688 cmd.exe 118 -
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\b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe"C:\Users\Admin\AppData\Local\Temp\b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1072
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C:\Users\Admin\AppData\Local\Temp\b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.exe"C:\Users\Admin\AppData\Local\Temp\b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df.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:2780 -
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:2480
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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:4452 -
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:4648
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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:3468
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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:2288
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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:2448 -
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:3316
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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:4212
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2900
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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:4796
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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:4216
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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:1996
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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:4024
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4752 -
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:688 -
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:3752
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1468
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
MD5246760b186c927a445f1c987b6b91509
SHA14005349bc1cfb959177baba881b3992860a35c31
SHA256bee8fef128e6d99a608345cba24e101c66913820e0c23127ad73aa5f8828302f
SHA512da871f06f39c4cbbaa32cbe04c7b2613dec4f55d234aa319e69142139d4cf8513e06e98456282c01a204306f58de64083687eff0788312fd18e4b0667f7261a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5052cf9b38ef93a1665ab454dcd7df09c
SHA177ba5b7e913d0dbbfaa084e188306f395ae3ed8a
SHA2563e2b81a2e88db3755d29d89cca9ba953c01e4ab44b988b949bbe315122c9bd59
SHA5127cfffb839a5c650e035e740db6157253cfc9dfa2378723af8a13c8c549fec235bed0ac5f1c93d1a63d81361c1e019efc3aa8104eda5eeb49d1f7a8f5ec393b02
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD581ed1f1d53e883223ab098056fc4ccac
SHA164989f9d125c4e61731aa01a2d32f32b088fce04
SHA256de83b0de2cb79b9f16662a4b910069d4e9fdc5b17a30861b7b2e78d1adcbfe59
SHA512c86d9a46204a4d9fb891873b260e2addf0e207f9c9b289931331c028d69dfd59d30e8bd2cef0f49e62e661073f8477b3ecca6d5cf98fd6d4fb874d5069a02602
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD544f04f093f793762d6146ab574912a36
SHA1a937e143eed3b20ff317476e8cb901814fed7eec
SHA256a4343314f6859facf3cfa89b415c01e7111929aea8bd1d66a3674bda84de03ca
SHA512e318f9b68068d43419c754c577caafab2f7cc09dbe48d5496750bd244375e418112c808e9b362a7466600b8d5e0230a701b67a0945483c1e824801cebd6fafe6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5502365b2e612dc8005f16ff80ed7c4a1
SHA17a5da0995a624c7c3e07c3b979a543fee505aa85
SHA256a2da0ed49316971494556696b5f37994921b2a3963c10f9f07df72dba99ed10d
SHA512b8b15aa0a7a857849b1f9b415bec295faa0c543aa8e58f9e54c1690f51786e070b052367ca32bdf5c390c59cf38fc62de072eb9ef9db10797710c166751b6182
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Filesize
4.1MB
MD5ecdfb00cfd850adbe3a723e2bcb3084e
SHA128186151e349b1a86a227235aac4db1444ee780c
SHA256b8b02f338922b4997d3173239212d26679bc231c765b870f8aab6305460d75df
SHA512a9d1bf214aae81ac090f65d81b4c0c9a815cceb9fd9a48d8e4853dcd83ba6585fa6488636734363ff37417ec5d548322312e37bec9f739374f8b81c8d0d6a835
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec