Analysis
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max time kernel
149s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 19:16
Static task
static1
Behavioral task
behavioral1
Sample
77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
Resource
win10v2004-20240426-en
General
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Target
77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
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Size
4.1MB
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MD5
6da21da365f0c916e4bbd63448b1c6dc
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SHA1
63ce9c176d2729611e0d1e36286e98ac0a581bca
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SHA256
77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8
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SHA512
0503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24
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SSDEEP
98304:yZ3eWnmCP3Day+MGMrrH7Rp/OOmeNALbhxcJ3GFuqO9B+e2R0FJ3:YufQJ+wrvRp/OL3LVxY3GFuq2BkwJ3
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/1444-2-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/1444-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1444-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1444-54-0x0000000004D10000-0x00000000055FB000-memory.dmp family_glupteba behavioral2/memory/1444-52-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/2096-126-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-204-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-205-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-206-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-207-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-208-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-209-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-210-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-211-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-212-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-213-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-214-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-215-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba behavioral2/memory/1808-216-0x0000000000400000-0x0000000002B0D000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1004 netsh.exe -
Executes dropped EXE 2 IoCs
pid Process 1808 csrss.exe 2108 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\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 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 -
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 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\rss 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe File created C:\Windows\rss\csrss.exe 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe -
pid Process 1444 powershell.exe 4140 powershell.exe 3000 powershell.exe 2244 powershell.exe 4552 powershell.exe 4940 powershell.exe 2088 powershell.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4168 1444 WerFault.exe 78 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4748 schtasks.exe 3012 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,-2512 = "Lord Howe Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs 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,-571 = "China Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.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\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.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\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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)" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\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\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4140 powershell.exe 4140 powershell.exe 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 3000 powershell.exe 3000 powershell.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 2244 powershell.exe 2244 powershell.exe 4552 powershell.exe 4552 powershell.exe 4940 powershell.exe 4940 powershell.exe 2088 powershell.exe 2088 powershell.exe 1444 powershell.exe 1444 powershell.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 1808 csrss.exe 1808 csrss.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 1808 csrss.exe 1808 csrss.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe 2108 injector.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4140 powershell.exe Token: SeDebugPrivilege 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Token: SeImpersonatePrivilege 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeDebugPrivilege 2244 powershell.exe Token: SeDebugPrivilege 4552 powershell.exe Token: SeDebugPrivilege 4940 powershell.exe Token: SeDebugPrivilege 2088 powershell.exe Token: SeDebugPrivilege 1444 powershell.exe Token: SeSystemEnvironmentPrivilege 1808 csrss.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1444 wrote to memory of 4140 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 81 PID 1444 wrote to memory of 4140 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 81 PID 1444 wrote to memory of 4140 1444 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 81 PID 2096 wrote to memory of 3000 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 90 PID 2096 wrote to memory of 3000 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 90 PID 2096 wrote to memory of 3000 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 90 PID 2096 wrote to memory of 8 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 92 PID 2096 wrote to memory of 8 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 92 PID 8 wrote to memory of 1004 8 cmd.exe 94 PID 8 wrote to memory of 1004 8 cmd.exe 94 PID 2096 wrote to memory of 2244 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 95 PID 2096 wrote to memory of 2244 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 95 PID 2096 wrote to memory of 2244 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 95 PID 2096 wrote to memory of 4552 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 97 PID 2096 wrote to memory of 4552 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 97 PID 2096 wrote to memory of 4552 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 97 PID 2096 wrote to memory of 1808 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 99 PID 2096 wrote to memory of 1808 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 99 PID 2096 wrote to memory of 1808 2096 77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe 99 PID 1808 wrote to memory of 4940 1808 csrss.exe 100 PID 1808 wrote to memory of 4940 1808 csrss.exe 100 PID 1808 wrote to memory of 4940 1808 csrss.exe 100 PID 1808 wrote to memory of 2088 1808 csrss.exe 106 PID 1808 wrote to memory of 2088 1808 csrss.exe 106 PID 1808 wrote to memory of 2088 1808 csrss.exe 106 PID 1808 wrote to memory of 1444 1808 csrss.exe 108 PID 1808 wrote to memory of 1444 1808 csrss.exe 108 PID 1808 wrote to memory of 1444 1808 csrss.exe 108 PID 1808 wrote to memory of 2108 1808 csrss.exe 110 PID 1808 wrote to memory of 2108 1808 csrss.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\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe"C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4140
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C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe"C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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:2096 -
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:3000
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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:8 -
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:1004
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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:2244
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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:4552
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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.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808 -
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:4940
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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:3012
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1388
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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:2088
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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:1444
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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:2108
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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:4748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 9962⤵
- Program crash
PID:4168
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1444 -ip 14441⤵PID:992
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD575897c62587ba70e88fc5fa84406f10e
SHA19ddee8c3d8f1e6a0464a1288395cd4841838273f
SHA256fa23b8856acabc53c700113754946bda83c018128626e1f028f84323f99a63d5
SHA512dcd61148c5ade894b9304ad40e399351ff2cc516b36cf6ed75527e4fe103b0254d1413e9e30d50c1b08fcd3b1892d0d4c33845d046ec6bcd7bc1f2ae5bdcd4e2
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55bf4c91e9ead9c9a18845c625aafa0d4
SHA157fbba12d694ffcf34ab59687f81fa54f169d51a
SHA2569a5e880358c76fc6bf38ccf90c3773300f49b59508d3c300bab0f2189e499368
SHA512a1492df0109436c79a38cb12cb0404fc573eaf4c676348ba8f078101e9c2c1a74c8f8a9a0660b050838825a65f524b75879ee8cc04b2b6f25155ace5699ca160
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57cc0608df97744e525e4c22773caf43c
SHA12aa3e30873bd8a405bf5ee4633a9d16824d7921b
SHA256a68c5256641ff0217975641982ec01e0aba2ac1569bf64c44c0928829a20ed7a
SHA512b0b9bafd219b259567bba7714c634917bc28ae2494a690a3ba8d32c7c401b395ece9037b105f7d83ebac6dadd43f6010d54dbf30323422c7e5073a4d08508080
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56f247545c3f8dc5e1f4c6732ba4f5c27
SHA126e0b33922badd084bcc59a1b565c8dfd78d5662
SHA256da6c8b18ff8b504352c2ec357e50aba322d15bcba6eacc45a577c80bf7d54ac3
SHA51283c5c0f1dce6ab6a5850d6923c35f900bd09a4a611c4b62294f9ac729769983ec97a5900b0b1999c8d1be8d59eeddd88a311f90ea6d8f41fdfec127cd5f63778
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59da9d7a15c65b592eec9d6f126fca741
SHA12cd04c9969fa33ec79b3d487908b2d07de7bda3b
SHA256d350bf7cc2301756fe90f1a76923fc41979891f214c9c2e055e939dd511c306b
SHA512eef0da14a34823bd8616a3566d18144ac91e0d55e5f538ea8367f88b5497a7cd49c8e7c6e2b13d66a9bfcc16f41812123d79f42da06b56a1d4ed1f419af38b8b
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Filesize
4.1MB
MD56da21da365f0c916e4bbd63448b1c6dc
SHA163ce9c176d2729611e0d1e36286e98ac0a581bca
SHA25677a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8
SHA5120503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24