Analysis
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max time kernel
150s -
max time network
146s -
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 11:35
Static task
static1
Behavioral task
behavioral1
Sample
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe
Resource
win10v2004-20240508-en
General
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Target
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe
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Size
4.1MB
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MD5
e052d4fbd42291bce43ba0f97126e89c
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SHA1
ced2a998d0b6462959514047797bbd939bd9b094
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SHA256
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df
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SHA512
11fe661721fb74efe206acd5667c09d1bfddcdd9071b8599e78bd453f582ae3efa98b6aad0f073f1d76201ca06d94847e253379fed00c07ca94d76c9067d5403
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SSDEEP
98304:ek/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6b:en6bazjovoyoHfX3/GYH0
Malware Config
Signatures
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Glupteba payload 19 IoCs
Processes:
resource yara_rule behavioral2/memory/3260-2-0x0000000004560000-0x0000000004E4B000-memory.dmp family_glupteba behavioral2/memory/3260-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3260-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3260-54-0x0000000004560000-0x0000000004E4B000-memory.dmp family_glupteba behavioral2/memory/3260-51-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/2896-125-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-204-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-213-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-215-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-217-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-219-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-221-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-223-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-225-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-227-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-229-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-231-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-233-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba behavioral2/memory/1116-235-0x0000000000400000-0x0000000002364000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 3032 netsh.exe -
Executes dropped EXE 4 IoCs
Processes:
csrss.exeinjector.exewindefender.exewindefender.exepid Process 1116 csrss.exe 1564 injector.exe 1164 windefender.exe 2604 windefender.exe -
Processes:
resource yara_rule behavioral2/files/0x000200000002a9d1-207.dat upx behavioral2/memory/1164-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2604-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1164-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2604-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2604-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.execsrss.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\S-1-5-21-2551177587-3778486488-1329702901-1000\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 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.
Processes:
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exedescription ioc Process File opened (read-only) \??\VBoxMiniRdrDN 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe -
Drops file in Windows directory 4 IoCs
Processes:
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.execsrss.exedescription ioc Process File opened for modification C:\Windows\rss 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe File created C:\Windows\rss\csrss.exe 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.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 2524 sc.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepid Process 4324 powershell.exe 2452 powershell.exe 1560 powershell.exe 4668 powershell.exe 3724 powershell.exe 688 powershell.exe 4440 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 4868 schtasks.exe 4356 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exepowershell.exepowershell.exewindefender.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,-1472 = "Magadan Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.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\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3142 = "South Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-2182 = "Astrakhan 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\@tzres.dll,-2892 = "Sudan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2141 = "Transbaikal Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-42 = "E. South America Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust 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\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed 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\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\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\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-541 = "Myanmar Daylight Time" windefender.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exe18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exepowershell.exe18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exeinjector.execsrss.exepid Process 4324 powershell.exe 4324 powershell.exe 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2452 powershell.exe 2452 powershell.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 1560 powershell.exe 1560 powershell.exe 4668 powershell.exe 4668 powershell.exe 3724 powershell.exe 3724 powershell.exe 688 powershell.exe 688 powershell.exe 4440 powershell.exe 4440 powershell.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1116 csrss.exe 1116 csrss.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1116 csrss.exe 1116 csrss.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1116 csrss.exe 1116 csrss.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe 1564 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
powershell.exe18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.execsrss.exesc.exedescription pid Process Token: SeDebugPrivilege 4324 powershell.exe Token: SeDebugPrivilege 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Token: SeImpersonatePrivilege 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe Token: SeDebugPrivilege 2452 powershell.exe Token: SeDebugPrivilege 1560 powershell.exe Token: SeDebugPrivilege 4668 powershell.exe Token: SeDebugPrivilege 3724 powershell.exe Token: SeDebugPrivilege 688 powershell.exe Token: SeDebugPrivilege 4440 powershell.exe Token: SeSystemEnvironmentPrivilege 1116 csrss.exe Token: SeSecurityPrivilege 2524 sc.exe Token: SeSecurityPrivilege 2524 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
Processes:
18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.execmd.execsrss.exewindefender.execmd.exedescription pid Process procid_target PID 3260 wrote to memory of 4324 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 81 PID 3260 wrote to memory of 4324 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 81 PID 3260 wrote to memory of 4324 3260 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 81 PID 2896 wrote to memory of 2452 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 87 PID 2896 wrote to memory of 2452 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 87 PID 2896 wrote to memory of 2452 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 87 PID 2896 wrote to memory of 3492 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 89 PID 2896 wrote to memory of 3492 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 89 PID 3492 wrote to memory of 3032 3492 cmd.exe 113 PID 3492 wrote to memory of 3032 3492 cmd.exe 113 PID 2896 wrote to memory of 1560 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 92 PID 2896 wrote to memory of 1560 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 92 PID 2896 wrote to memory of 1560 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 92 PID 2896 wrote to memory of 4668 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 94 PID 2896 wrote to memory of 4668 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 94 PID 2896 wrote to memory of 4668 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 94 PID 2896 wrote to memory of 1116 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 96 PID 2896 wrote to memory of 1116 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 96 PID 2896 wrote to memory of 1116 2896 18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe 96 PID 1116 wrote to memory of 3724 1116 csrss.exe 97 PID 1116 wrote to memory of 3724 1116 csrss.exe 97 PID 1116 wrote to memory of 3724 1116 csrss.exe 97 PID 1116 wrote to memory of 688 1116 csrss.exe 102 PID 1116 wrote to memory of 688 1116 csrss.exe 102 PID 1116 wrote to memory of 688 1116 csrss.exe 102 PID 1116 wrote to memory of 4440 1116 csrss.exe 105 PID 1116 wrote to memory of 4440 1116 csrss.exe 105 PID 1116 wrote to memory of 4440 1116 csrss.exe 105 PID 1116 wrote to memory of 1564 1116 csrss.exe 107 PID 1116 wrote to memory of 1564 1116 csrss.exe 107 PID 1164 wrote to memory of 3032 1164 windefender.exe 113 PID 1164 wrote to memory of 3032 1164 windefender.exe 113 PID 1164 wrote to memory of 3032 1164 windefender.exe 113 PID 3032 wrote to memory of 2524 3032 cmd.exe 114 PID 3032 wrote to memory of 2524 3032 cmd.exe 114 PID 3032 wrote to memory of 2524 3032 cmd.exe 114 -
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\18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe"C:\Users\Admin\AppData\Local\Temp\18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3260 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4324
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C:\Users\Admin\AppData\Local\Temp\18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.exe"C:\Users\Admin\AppData\Local\Temp\18a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df.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:2896 -
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:2452
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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:3492 -
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:3032
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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:1560
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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:4668
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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:1116 -
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:3724
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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:4868
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4848
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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:688
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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:4440
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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:1564
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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:4356
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1164 -
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:3032 -
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:2524
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2604
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
MD588bfac37ad80fd025de74d97d7052c09
SHA127c2d127dc3d8259fe3f6206da1c20c7aae82238
SHA256900138eb66fdeb4818017c77c6d2b327796da989cd003a58dd2509d3611e4977
SHA512de1f94e4a0af4ecc86d4bae0188bc1d5b12601b1e35050e40d6e605fc39ac26afd80056cca6a29a1c7ec6065ff1fa507661036407cd76327ae2d8203be6bc0b1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ac2ba25a31a722071ce37e246f2d13f3
SHA17e1210fc73b8fd86e2f7760d743c07c8e64d3032
SHA2568a6b97151b3f85c23db9dcc8475487a2cc68fe205114bbb9c2edde34c0e95997
SHA512a2fcde71cba5208711d77b95e19968cc4ef8c946f0e35b3e2b80341f1d4a5d0457cab3e7b44d035f7ef25e0333283a15073616fab987af817f6fa177607626d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5869e4f2a60ccd6f5dd8d59e395ae5609
SHA1d8d9378710ad47b22adda9210f318fad28565f33
SHA256c538d76b346986e995b9da0a0ace58cfaf0c2d707a3ca9d70f9112d2acfdd06a
SHA512450f99cb39d61caa035a2f8314422a58659752d4f5268ecb8cf733f4a4bb89e78e1dd864d928b9dd535d5e43c9c17bf946784798ed5cd8a682f471eb57917d6c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f1168dab0c8aa2583380d9009e178514
SHA17f644ef37392cad226bd03c5f444cbd079def984
SHA2567ba34be9229db7b51c43eb89dda7e71f9205d688ac35771e5d9b9a8221b41b13
SHA512338f5b9467e78652546787de37bcef6e2bafe6be4218d7c70c5a93b5f12ef1a40d7b1b3a02814c3c7dc8a1da9ac689b746d00c104230bac8fcc4c96e6f0734bd
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57be93e7fda334567a943778065f2a059
SHA1ade973d8c741db14dffdb39607d2d22259610c22
SHA256704244f41e278bb538d075b0612d015588dd704bd2c68938f33f8a5326c6a13f
SHA51267c5ba9ba64f1a5582f5f9a570750523fbb2a3ceb5bca2808557dadc616685bbb1e5a3245b22b82e14132b03fc0fbbe6895e7e57990d35f5fc0627ba973a2e74
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Filesize
4.1MB
MD5e052d4fbd42291bce43ba0f97126e89c
SHA1ced2a998d0b6462959514047797bbd939bd9b094
SHA25618a7a737d1406ae6566961ce341d9386003bb22d5bc6bc74e4347c7064a0f1df
SHA51211fe661721fb74efe206acd5667c09d1bfddcdd9071b8599e78bd453f582ae3efa98b6aad0f073f1d76201ca06d94847e253379fed00c07ca94d76c9067d5403
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec