Analysis
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max time kernel
150s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 21:49
Static task
static1
Behavioral task
behavioral1
Sample
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe
Resource
win10v2004-20240508-en
General
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Target
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe
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Size
4.1MB
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MD5
2e84198c63eb13a1e450baf1ff6e5029
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SHA1
9967d8063ec607ef63a65657f55cefed6cd66154
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SHA256
b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31
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SHA512
452bbefe34bf464c25aa8560fe4555686f1b3eaf5b8a69894a7328d89b20fd0f6c5bcd4606cb78a59d240c19c5237c346bf1816d936c65b9c2d1142c9d01fff0
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SSDEEP
98304:kX33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0rXr:kXPWAwQyCdJYw8KggXr
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4600-2-0x00000000047D0000-0x00000000050BB000-memory.dmp family_glupteba behavioral1/memory/4600-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4600-92-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4600-127-0x00000000047D0000-0x00000000050BB000-memory.dmp family_glupteba behavioral1/memory/2020-133-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/4600-185-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/2404-208-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-227-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-230-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-239-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-242-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-245-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-248-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-251-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-254-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral1/memory/2404-257-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1492 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2404 csrss.exe 2080 injector.exe 3704 windefender.exe 5036 windefender.exe -
resource yara_rule behavioral1/files/0x000900000002342e-219.dat upx behavioral1/memory/3704-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5036-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/3704-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5036-229-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/5036-235-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File 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 -
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 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 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 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 5100 sc.exe -
pid Process 2592 powershell.exe 3344 powershell.exe 2448 powershell.exe 3200 powershell.exe 4164 powershell.exe 3856 powershell.exe 1852 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 5060 schtasks.exe 2052 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\@tzres.dll,-2611 = "Bougainville Daylight Time" windefender.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\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs 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,-11 = "Azores Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-402 = "Arabic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3052 = "Qyzylorda Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.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,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.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,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-171 = "Central Daylight Time (Mexico)" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.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\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.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\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.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,-261 = "GMT 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,-1971 = "Belarus Daylight 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\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-751 = "Tonga Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2592 powershell.exe 2592 powershell.exe 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 3344 powershell.exe 3344 powershell.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 2448 powershell.exe 2448 powershell.exe 3200 powershell.exe 3200 powershell.exe 4164 powershell.exe 4164 powershell.exe 3856 powershell.exe 3856 powershell.exe 1852 powershell.exe 1852 powershell.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2404 csrss.exe 2404 csrss.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2404 csrss.exe 2404 csrss.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2404 csrss.exe 2404 csrss.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe 2080 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2592 powershell.exe Token: SeDebugPrivilege 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Token: SeImpersonatePrivilege 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe Token: SeDebugPrivilege 3344 powershell.exe Token: SeDebugPrivilege 2448 powershell.exe Token: SeDebugPrivilege 3200 powershell.exe Token: SeDebugPrivilege 4164 powershell.exe Token: SeDebugPrivilege 3856 powershell.exe Token: SeDebugPrivilege 1852 powershell.exe Token: SeSystemEnvironmentPrivilege 2404 csrss.exe Token: SeSecurityPrivilege 5100 sc.exe Token: SeSecurityPrivilege 5100 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4600 wrote to memory of 2592 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 85 PID 4600 wrote to memory of 2592 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 85 PID 4600 wrote to memory of 2592 4600 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 85 PID 2020 wrote to memory of 3344 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 96 PID 2020 wrote to memory of 3344 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 96 PID 2020 wrote to memory of 3344 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 96 PID 2020 wrote to memory of 4332 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 100 PID 2020 wrote to memory of 4332 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 100 PID 4332 wrote to memory of 1492 4332 cmd.exe 102 PID 4332 wrote to memory of 1492 4332 cmd.exe 102 PID 2020 wrote to memory of 2448 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 104 PID 2020 wrote to memory of 2448 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 104 PID 2020 wrote to memory of 2448 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 104 PID 2020 wrote to memory of 3200 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 107 PID 2020 wrote to memory of 3200 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 107 PID 2020 wrote to memory of 3200 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 107 PID 2020 wrote to memory of 2404 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 109 PID 2020 wrote to memory of 2404 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 109 PID 2020 wrote to memory of 2404 2020 b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe 109 PID 2404 wrote to memory of 4164 2404 csrss.exe 110 PID 2404 wrote to memory of 4164 2404 csrss.exe 110 PID 2404 wrote to memory of 4164 2404 csrss.exe 110 PID 2404 wrote to memory of 3856 2404 csrss.exe 115 PID 2404 wrote to memory of 3856 2404 csrss.exe 115 PID 2404 wrote to memory of 3856 2404 csrss.exe 115 PID 2404 wrote to memory of 1852 2404 csrss.exe 118 PID 2404 wrote to memory of 1852 2404 csrss.exe 118 PID 2404 wrote to memory of 1852 2404 csrss.exe 118 PID 2404 wrote to memory of 2080 2404 csrss.exe 121 PID 2404 wrote to memory of 2080 2404 csrss.exe 121 PID 3704 wrote to memory of 4404 3704 windefender.exe 128 PID 3704 wrote to memory of 4404 3704 windefender.exe 128 PID 3704 wrote to memory of 4404 3704 windefender.exe 128 PID 4404 wrote to memory of 5100 4404 cmd.exe 129 PID 4404 wrote to memory of 5100 4404 cmd.exe 129 PID 4404 wrote to memory of 5100 4404 cmd.exe 129 -
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\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2592
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C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.exe"C:\Users\Admin\AppData\Local\Temp\b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31.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:2020 -
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:3344
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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:4332 -
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:1492
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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:2448
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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:3200
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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:2404 -
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:4164
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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:5060
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2016
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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:3856
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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:1852
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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:2080
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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:2052
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3704 -
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:4404 -
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:5100
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:5036
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5fb4cd4f33280443d72064fc553e35939
SHA18c5bce25846584e95da7d5f748dc5d32c6f7474b
SHA25661e9953c32784998dd136cf0a33f33e22f809559391a63aaa59156b98cc94dc0
SHA5120e813e2945100f0701675da05233778ce5052fe440e2ed3b9019758b56f1481cfc1cf08b47e81fb3fe05d32b2e2a225d83ebdaeaf66089010a110231fc77d453
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5866596093e96e65864bb81cc6100f9b8
SHA1a45b51e3517ce4a767b3ad6a7a6121510109b1b1
SHA2569beb79d3a371555a959637467230b284dc2df49ac3d55e1e6fad8bed6a7e9011
SHA51236a6732bdd51a87e9ada0d3248095023c79ed726e517368fab7122d3a533e033eed268038aa386289b38f3bfc201a55ce55f5a9b8d43c54b601cc687d9d05a12
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f90be928e57e54f8a7e7ff689f08f385
SHA1298c41bbe75dce43aeb21da2e2ffc73755da2b34
SHA256d31eb177fe10759b6ef05364a9745b23eca7a0f11966e0084fac8cdeb4bc8c17
SHA512e331673a0f6a33545b5f3555a172742149052c55c65d0ec7ba246cc7e58dde885262c6384c15d84b886ea375f0e431bbdd20e8e269681300ad89a6a035159043
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56e8162f220322fc09533cc2a70a35271
SHA18a050848553b5aae1724f10149b18900f2d532e9
SHA2565b50538c8331d8976019aa74576b05ab48ed485410c39c51eba300b7152c53d0
SHA512695491748b1a38e4ede6c0b7fc015b4a1fcad59ae27c9a9337aae0ab7ac21c2c09a2a5033446eb5b6157d6f97400f8666e3b87604f6d6a272ac01158d5e2977b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5273fe566d4166474d795fc0e9e153933
SHA1dc1f01a97a7309b0afe765bae5caccc7f9b385e9
SHA2565243c5c813fef70750ba37f4a0ad85d4be15fbeb2443895850c91dd891510ffd
SHA512197e9d3a8caa5ad91022ccb0516b5e02338cea575f0309045e97419c087be8eb4dbbe21659fbe6b70641db5b5e1c878e960b57d7af0b8a4368085c6c1371fc04
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Filesize
4.1MB
MD52e84198c63eb13a1e450baf1ff6e5029
SHA19967d8063ec607ef63a65657f55cefed6cd66154
SHA256b598ba34f841065c6c5e1acf21a312a4adaaf6f4cd2adde54000fb0792aaac31
SHA512452bbefe34bf464c25aa8560fe4555686f1b3eaf5b8a69894a7328d89b20fd0f6c5bcd4606cb78a59d240c19c5237c346bf1816d936c65b9c2d1142c9d01fff0
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec