Analysis
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max time kernel
10s -
max time network
143s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 16:27
Static task
static1
Behavioral task
behavioral1
Sample
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe
Resource
win10v2004-20240426-en
General
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Target
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe
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Size
4.1MB
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MD5
967200bfff751d0803ef6ffe638e50ad
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SHA1
b63159bd5a54bcf6c2a68039ac28fa2d70684a07
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SHA256
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e
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SHA512
bd687792e6c279a131cd2a10c65ab27f57f0531ae8597a6e6ee09901a25b46d19e1bf2958a1f8b0797984808307533decd5b3aa3387f0036f5106a4f8da72e35
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SSDEEP
98304:BvHfbigA34ifkpJZQU0TgaIfW6UkFHwAhDtgwFW+18:BvHfb2IifudqhIuUHwAjW+u
Malware Config
Signatures
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Glupteba payload 18 IoCs
Processes:
resource yara_rule behavioral2/memory/2040-2-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/2040-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2040-138-0x0000000004980000-0x000000000526B000-memory.dmp family_glupteba behavioral2/memory/2040-134-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/2040-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4976-199-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-202-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-213-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-216-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-221-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-225-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-229-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-233-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-236-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-241-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-245-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-249-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba behavioral2/memory/4548-252-0x0000000000400000-0x0000000002733000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3556 netsh.exe -
Executes dropped EXE 1 IoCs
Processes:
csrss.exepid Process 4548 csrss.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002aa1a-205.dat upx behavioral2/memory/2784-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1276-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1276-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2784-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2784-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe -
Drops file in System32 directory 4 IoCs
Processes:
powershell.exepowershell.exepowershell.exedescription 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 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.
Processes:
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe -
Drops file in Windows directory 2 IoCs
Processes:
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exedescription ioc Process File created C:\Windows\rss\csrss.exe 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe File opened for modification C:\Windows\rss 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 1540 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 3816 powershell.exe 5000 powershell.exe 228 powershell.exe 4616 powershell.exe 4408 powershell.exe 4920 powershell.exe 1052 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 4444 schtasks.exe 2308 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exepowershell.exepowershell.exepowershell.exepowershell.exedescription ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates 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,-742 = "New Zealand Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.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\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.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,-231 = "Hawaiian Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 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,-32 = "Mid-Atlantic Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.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" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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,-662 = "Cen. Australia Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
Processes:
powershell.exe91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exepowershell.exe91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exepowershell.exepowershell.exepowershell.exepid Process 4920 powershell.exe 4920 powershell.exe 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 1052 powershell.exe 1052 powershell.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 3816 powershell.exe 3816 powershell.exe 5000 powershell.exe 5000 powershell.exe 228 powershell.exe 228 powershell.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
powershell.exe91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid Process Token: SeDebugPrivilege 4920 powershell.exe Token: SeDebugPrivilege 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Token: SeImpersonatePrivilege 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe Token: SeDebugPrivilege 1052 powershell.exe Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 5000 powershell.exe Token: SeDebugPrivilege 228 powershell.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.execmd.execsrss.exedescription pid Process procid_target PID 2040 wrote to memory of 4920 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 82 PID 2040 wrote to memory of 4920 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 82 PID 2040 wrote to memory of 4920 2040 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 82 PID 4976 wrote to memory of 1052 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 88 PID 4976 wrote to memory of 1052 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 88 PID 4976 wrote to memory of 1052 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 88 PID 4976 wrote to memory of 4152 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 90 PID 4976 wrote to memory of 4152 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 90 PID 4152 wrote to memory of 3556 4152 cmd.exe 92 PID 4152 wrote to memory of 3556 4152 cmd.exe 92 PID 4976 wrote to memory of 3816 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 93 PID 4976 wrote to memory of 3816 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 93 PID 4976 wrote to memory of 3816 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 93 PID 4976 wrote to memory of 5000 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 95 PID 4976 wrote to memory of 5000 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 95 PID 4976 wrote to memory of 5000 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 95 PID 4976 wrote to memory of 4548 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 97 PID 4976 wrote to memory of 4548 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 97 PID 4976 wrote to memory of 4548 4976 91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe 97 PID 4548 wrote to memory of 228 4548 csrss.exe 98 PID 4548 wrote to memory of 228 4548 csrss.exe 98 PID 4548 wrote to memory of 228 4548 csrss.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe"C:\Users\Admin\AppData\Local\Temp\91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4920
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C:\Users\Admin\AppData\Local\Temp\91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.exe"C:\Users\Admin\AppData\Local\Temp\91546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e.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:4976 -
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:1052
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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:4152 -
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:3556
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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:3816
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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:5000
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4548 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:228
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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:4444
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2860
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
PID:4616
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
PID:4408
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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⤵PID:4728
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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:2308
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵PID:1276
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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⤵PID:2304
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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
PID:1540
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵PID:2784
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
MD5adb2c0198889359759929b9ae9d5a3ef
SHA1769c51bf6851999c6eb4a397d0b08393f81bd75c
SHA256986d0e22d5c8949f020e3b73c0f0ef0da62d88d1f0bb431a52cce13aef9a7436
SHA5120dfa0785a576dc6438628bd487b864562821cdc271c56911c1e4bd239e4e04f6122f40a2e3f00fc2e9dee66dcd6c95df40d18d584c4cd6209a7402f475baf094
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5207c9e2859657f0ba4b1edd6597c5cd1
SHA1d9c4d2805d15ca7137188bf3df44f534b9c3dd20
SHA2568c032534200e46427f24a7b854cca10987a53f14e226cc58cff23144c1f4bd19
SHA5125892188ac84fb1b8f00735744b2a5f4961a5e4f32b8b7a80672d72a75a38064f2fdfccbbb9f48cce74e138fea289fb55dec5202dc2456800bade87a51013de62
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD555071606b77295535fb312547b803755
SHA12ad92deb0b55e1bc5416795e8712110e4c1c487b
SHA256ef15dfad4b2aced2e927cae0837658fa7c03008fb1f63d7eb96cda78475bfb9d
SHA5121b5fe23f2189e43fb0485636e14f14102315979ea60e300c9b76dbfa5684b285c54fddd477f3dea25eacf2fbd7a37f390542ead98657b322ea36cf910cfbb825
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD592ff4b1332c97950b8745fa6bbd6974b
SHA1c8a7021af5f5c25ad8b487f321040cdde9d1ab9c
SHA2567adf18c9da00a2d2efd6c08f678add04b0fbe0c80d475177518c717434b439cb
SHA5120ef5e6e60a6038706dc85a534bcb2a30bd2dc6c83c3753fa6dd5310abfcdda719ade8fa15038e82cc018df38db2be6a25d00fe2fef62a77d9762bfd73ac27261
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d1dfe84faee7a031ddf46d685d67e9f2
SHA10fe9e9a3bc7343cd6d24061cfc4f38c54b5c493e
SHA256cdbed6b33027fd04fdcb6fa4f4275d05ec024dc3d49e1aab102b347dd654d6f5
SHA512472f3ec7d312c46c93d1b5557068938b5dfbfa14808004222677ff86e667ec2d2ee21ef66f1d7c64b3f60e4ba45961a1ca1e687b3abf048a500d65d3082951f3
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Filesize
4.1MB
MD5967200bfff751d0803ef6ffe638e50ad
SHA1b63159bd5a54bcf6c2a68039ac28fa2d70684a07
SHA25691546a0498d4320c8239ba82d97e648d5ae2bf8ff549659875541c82e06ad81e
SHA512bd687792e6c279a131cd2a10c65ab27f57f0531ae8597a6e6ee09901a25b46d19e1bf2958a1f8b0797984808307533decd5b3aa3387f0036f5106a4f8da72e35
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec