Analysis
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max time kernel
149s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 09:07
Static task
static1
Behavioral task
behavioral1
Sample
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe
Resource
win10v2004-20240508-en
General
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Target
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe
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Size
4.1MB
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MD5
1ebd58b5a0d2ae2d3c369086e98fae1c
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SHA1
5c748473c2c8d8f863a0e3dbdd66b2afea69dd77
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SHA256
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214
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SHA512
13acc264d0150d0ee42c574cc8f577cc7d3ab0a81ca00db7897b7ef12a5530a402afbe3a19cfa015886196178aad92508daa052f1306f6a16b1c65974416ab7a
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SSDEEP
98304:AvCQaDBnSWO/B+XxjapSyZlG1PnsYHdaWgIg92gsnC3bzMZh6P1DY:AvC3DFSWO/BjYGk1PnXHoWWZ1za6NDY
Malware Config
Signatures
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Glupteba payload 20 IoCs
Processes:
resource yara_rule behavioral2/memory/2700-2-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/2700-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2700-53-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/2700-54-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2700-51-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4772-122-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4772-127-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-206-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-215-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-217-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-219-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-221-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-223-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-225-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-227-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-229-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-231-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-233-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-235-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba behavioral2/memory/4956-237-0x0000000000400000-0x0000000002365000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 2244 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 4956 csrss.exe 3344 injector.exe 3664 windefender.exe 3960 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x001a00000002ab2d-209.dat upx behavioral2/memory/3664-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3664-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3960-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3960-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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:
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe -
Drops file in Windows directory 4 IoCs
Processes:
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe File created C:\Windows\rss\csrss.exe 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.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 752 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4088 powershell.exe 4448 powershell.exe 680 powershell.exe 4400 powershell.exe 1696 powershell.exe 1340 powershell.exe 3692 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 416 schtasks.exe 3476 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exepowershell.exepowershell.exewindefender.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs 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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2531 = "Chatham Islands Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\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,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1802 = "Line Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.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" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exepowershell.exe398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4448 powershell.exe 4448 powershell.exe 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 680 powershell.exe 680 powershell.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 4400 powershell.exe 4400 powershell.exe 1696 powershell.exe 1696 powershell.exe 1340 powershell.exe 1340 powershell.exe 3692 powershell.exe 3692 powershell.exe 4088 powershell.exe 4088 powershell.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 4956 csrss.exe 4956 csrss.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 4956 csrss.exe 4956 csrss.exe 3344 injector.exe 3344 injector.exe 4956 csrss.exe 4956 csrss.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe 3344 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4448 powershell.exe Token: SeDebugPrivilege 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Token: SeImpersonatePrivilege 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe Token: SeDebugPrivilege 680 powershell.exe Token: SeDebugPrivilege 4400 powershell.exe Token: SeDebugPrivilege 1696 powershell.exe Token: SeDebugPrivilege 1340 powershell.exe Token: SeDebugPrivilege 3692 powershell.exe Token: SeDebugPrivilege 4088 powershell.exe Token: SeSystemEnvironmentPrivilege 4956 csrss.exe Token: SeSecurityPrivilege 752 sc.exe Token: SeSecurityPrivilege 752 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 2700 wrote to memory of 4448 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 80 PID 2700 wrote to memory of 4448 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 80 PID 2700 wrote to memory of 4448 2700 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 80 PID 4772 wrote to memory of 680 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 86 PID 4772 wrote to memory of 680 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 86 PID 4772 wrote to memory of 680 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 86 PID 4772 wrote to memory of 2368 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 88 PID 4772 wrote to memory of 2368 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 88 PID 2368 wrote to memory of 2244 2368 cmd.exe 90 PID 2368 wrote to memory of 2244 2368 cmd.exe 90 PID 4772 wrote to memory of 4400 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 91 PID 4772 wrote to memory of 4400 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 91 PID 4772 wrote to memory of 4400 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 91 PID 4772 wrote to memory of 1696 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 93 PID 4772 wrote to memory of 1696 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 93 PID 4772 wrote to memory of 1696 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 93 PID 4772 wrote to memory of 4956 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 95 PID 4772 wrote to memory of 4956 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 95 PID 4772 wrote to memory of 4956 4772 398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe 95 PID 4956 wrote to memory of 1340 4956 csrss.exe 96 PID 4956 wrote to memory of 1340 4956 csrss.exe 96 PID 4956 wrote to memory of 1340 4956 csrss.exe 96 PID 4956 wrote to memory of 3692 4956 csrss.exe 101 PID 4956 wrote to memory of 3692 4956 csrss.exe 101 PID 4956 wrote to memory of 3692 4956 csrss.exe 101 PID 4956 wrote to memory of 4088 4956 csrss.exe 104 PID 4956 wrote to memory of 4088 4956 csrss.exe 104 PID 4956 wrote to memory of 4088 4956 csrss.exe 104 PID 4956 wrote to memory of 3344 4956 csrss.exe 106 PID 4956 wrote to memory of 3344 4956 csrss.exe 106 PID 3664 wrote to memory of 4364 3664 windefender.exe 112 PID 3664 wrote to memory of 4364 3664 windefender.exe 112 PID 3664 wrote to memory of 4364 3664 windefender.exe 112 PID 4364 wrote to memory of 752 4364 cmd.exe 113 PID 4364 wrote to memory of 752 4364 cmd.exe 113 PID 4364 wrote to memory of 752 4364 cmd.exe 113 -
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\398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe"C:\Users\Admin\AppData\Local\Temp\398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4448
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C:\Users\Admin\AppData\Local\Temp\398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.exe"C:\Users\Admin\AppData\Local\Temp\398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214.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:4772 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:680
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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:2368 -
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: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:4400
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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:1696
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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:4956 -
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:1340
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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:3476
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:340
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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:3692
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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:4088
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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:3344
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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:416
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3664 -
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:4364 -
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:752
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3960
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
MD5fe5c946d1ae681601acd14b1827b14ee
SHA1f75fa0cc7d3ecc4911f0593dc21621d96b7e2932
SHA25617b7a34805356abaf1cd42a34fdc7d408d3cdfefc49f108cfe103350f7b2ba49
SHA51208f992895af133589838998099b7d6130fe35d70246bff29df0417d558a3b1d89cdb26f745eb9f73186065c1b137e53742c9ec470b33c9541f0a4f3c375ffe10
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50e45a1193d201b19dc1e18778e7109f7
SHA18e77cfc568e3ee6bce68567d15ab2eed0a222031
SHA256e8643f6ef7bb1a39a4a7fbfc1f70023b7876d2cf798536d533beff4d9c2c5ef1
SHA512403e3afcc437b942aaf840368a88d36d92aa396fc965acfa300ff60776a678f5f3b40d013a8e8be3c202f03a400eb57995348818ebc6bd8fe3c52aca97e44f41
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cbf57711c9d3adf1bdbcdeddef476fd3
SHA165d36e1d0ff3df40de6f8831591b3c122d032788
SHA256736deb63d12f8b75f2e343b8fb949fb9f333226d7cc2001b69490ccd9155eb64
SHA51220b0b0f03748b6f22448134c3c45dc153b6b379de3d67ec01f9497a4038afe3c4944b258c9f7f9b1682419cd50230b71053b8e639d7aba0852d3498db55dde2b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD591dff65265803c15875bdc0ad06c0a17
SHA1e6c533ae944aac517132219c14d9808f4713153f
SHA25651843b60ac83fb9d22fad16155a3790adf0b047472a1a0bbe2c53b79fb450f2a
SHA512cdd644cbdb9ce40500a5eac94094719440615965a5442a47d51f37637bfcb0b5e9551feec033d8b54a395e8ef353ff159ea4dc2008e1deb2f68de86914adc9c1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD557ef4565a1fd850be0814e6b88e876f4
SHA10292ac14957de6a8508e30b4a9b2be662aaaf581
SHA256c8a760b72b9cda253ad0cbeec54707d5e197f82d4757958f6578dbcccdb26fa1
SHA5120c3ce702fcb34fac8007323e072b821b182cf955f3da0b2e604c7ea60212472874ee778691efbf09624ea060f6754c43d51050c595b71a9ab750e8b2e5d5560f
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Filesize
4.1MB
MD51ebd58b5a0d2ae2d3c369086e98fae1c
SHA15c748473c2c8d8f863a0e3dbdd66b2afea69dd77
SHA256398644cbf1c5166f19a6df291e6a47b157168c7eb4f52bef13e41e1e6854d214
SHA51213acc264d0150d0ee42c574cc8f577cc7d3ab0a81ca00db7897b7ef12a5530a402afbe3a19cfa015886196178aad92508daa052f1306f6a16b1c65974416ab7a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec