Analysis
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max time kernel
149s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
10/05/2024, 12:49
Static task
static1
Behavioral task
behavioral1
Sample
ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe
Resource
win10v2004-20240508-en
General
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Target
ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe
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Size
4.1MB
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MD5
a3834f83074aca980bcc6a01a92e23d2
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SHA1
32ebd65ca8a92202c7e6ff84f219b37590f48ef7
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SHA256
ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff
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SHA512
f1d9725d3522abeb498aa8caf1e868e0357c4c3535caf9346c3ee21f379a8a1f2e579360bda22926d3f584be4d446e2a1b774d428d3785d96bbacc2eb128b979
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SSDEEP
98304:M0nFxzGbvSbUZowRHyzjgsKaXndWLtFoCNOvzXZY6X40:NzzGbv97yvo5ObXM0
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/72-2-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/72-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/72-51-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/72-53-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/72-54-0x0000000004A60000-0x000000000534B000-memory.dmp family_glupteba behavioral2/memory/2720-101-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/2720-128-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-200-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-207-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-217-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-219-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-221-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-223-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-225-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-227-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-229-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-231-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-233-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba behavioral2/memory/1872-235-0x0000000000400000-0x0000000002959000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2484 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1872 csrss.exe 3456 injector.exe 2040 windefender.exe 3936 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9d7-210.dat upx behavioral2/memory/2040-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3936-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2040-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3936-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3936-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File 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.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe File created C:\Windows\rss\csrss.exe ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.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.
pid Process 4340 sc.exe -
pid Process 2364 powershell.exe 4816 powershell.exe 4476 powershell.exe 3616 powershell.exe 3016 powershell.exe 4268 powershell.exe 1820 powershell.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 1332 72 WerFault.exe 79 3532 2720 WerFault.exe 86 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3152 schtasks.exe 5068 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.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,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\@tzres.dll,-2321 = "Sakhalin Daylight Time" windefender.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\@tzres.dll,-631 = "Tokyo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1972 = "Belarus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.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,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-871 = "Pakistan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4268 powershell.exe 4268 powershell.exe 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 1820 powershell.exe 1820 powershell.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 2364 powershell.exe 2364 powershell.exe 4816 powershell.exe 4816 powershell.exe 4476 powershell.exe 4476 powershell.exe 3616 powershell.exe 3616 powershell.exe 3016 powershell.exe 3016 powershell.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 1872 csrss.exe 1872 csrss.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 1872 csrss.exe 1872 csrss.exe 3456 injector.exe 3456 injector.exe 1872 csrss.exe 1872 csrss.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe 3456 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4268 powershell.exe Token: SeDebugPrivilege 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Token: SeImpersonatePrivilege 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe Token: SeDebugPrivilege 1820 powershell.exe Token: SeDebugPrivilege 2364 powershell.exe Token: SeDebugPrivilege 4816 powershell.exe Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 3616 powershell.exe Token: SeDebugPrivilege 3016 powershell.exe Token: SeSystemEnvironmentPrivilege 1872 csrss.exe Token: SeSecurityPrivilege 4340 sc.exe Token: SeSecurityPrivilege 4340 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 72 wrote to memory of 4268 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 82 PID 72 wrote to memory of 4268 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 82 PID 72 wrote to memory of 4268 72 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 82 PID 2720 wrote to memory of 1820 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 90 PID 2720 wrote to memory of 1820 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 90 PID 2720 wrote to memory of 1820 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 90 PID 2720 wrote to memory of 2040 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 92 PID 2720 wrote to memory of 2040 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 92 PID 2040 wrote to memory of 2484 2040 cmd.exe 94 PID 2040 wrote to memory of 2484 2040 cmd.exe 94 PID 2720 wrote to memory of 2364 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 95 PID 2720 wrote to memory of 2364 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 95 PID 2720 wrote to memory of 2364 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 95 PID 2720 wrote to memory of 4816 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 97 PID 2720 wrote to memory of 4816 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 97 PID 2720 wrote to memory of 4816 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 97 PID 2720 wrote to memory of 1872 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 99 PID 2720 wrote to memory of 1872 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 99 PID 2720 wrote to memory of 1872 2720 ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe 99 PID 1872 wrote to memory of 4476 1872 csrss.exe 102 PID 1872 wrote to memory of 4476 1872 csrss.exe 102 PID 1872 wrote to memory of 4476 1872 csrss.exe 102 PID 1872 wrote to memory of 3616 1872 csrss.exe 107 PID 1872 wrote to memory of 3616 1872 csrss.exe 107 PID 1872 wrote to memory of 3616 1872 csrss.exe 107 PID 1872 wrote to memory of 3016 1872 csrss.exe 110 PID 1872 wrote to memory of 3016 1872 csrss.exe 110 PID 1872 wrote to memory of 3016 1872 csrss.exe 110 PID 1872 wrote to memory of 3456 1872 csrss.exe 112 PID 1872 wrote to memory of 3456 1872 csrss.exe 112 PID 2040 wrote to memory of 3384 2040 windefender.exe 118 PID 2040 wrote to memory of 3384 2040 windefender.exe 118 PID 2040 wrote to memory of 3384 2040 windefender.exe 118 PID 3384 wrote to memory of 4340 3384 cmd.exe 119 PID 3384 wrote to memory of 4340 3384 cmd.exe 119 PID 3384 wrote to memory of 4340 3384 cmd.exe 119 -
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\ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe"C:\Users\Admin\AppData\Local\Temp\ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:72 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4268
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C:\Users\Admin\AppData\Local\Temp\ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.exe"C:\Users\Admin\AppData\Local\Temp\ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff.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:2720 -
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:1820
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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:2040 -
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:2484
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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:2364
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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:4816
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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:1872 -
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:4476
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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:3152
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3160
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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:3616
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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:3016
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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:3456
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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:5068
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2040 -
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:3384 -
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:4340
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 7203⤵
- Program crash
PID:3532
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 72 -s 8442⤵
- Program crash
PID:1332
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 72 -ip 721⤵PID:660
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2720 -ip 27201⤵PID:1128
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3936
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD574014ef35a47109c86d39c451c2df94e
SHA1ca7f66e2b92d0549784b4117c964406dcd70cca9
SHA2563a368f62a9c3ccf0c8ca20745fb52ad04d59530da0a4d51aaae548d6d94ef1d9
SHA512fc05de49c5cf630ae162fb259dddf8ef037d7bdc7e10f13ae16d80cc1f7e90260a87e0d10dc410f542fd68d6174a2aab91ab330b800813e47211d3793cdf1b08
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d2543addcc2347cd659d0df15e331950
SHA11b1919c8861668d7c40e790005a01ab178673650
SHA2560730c8b008faccdbdf033759c36b289f415fca327bbb620311b3895c499b9d72
SHA51205ed46c63910fe26ba5f1e6ca5bf25dc2a24d923d52c8b94deaa67b013e56f55339ee43306d074dfde54eca002d4fa83f6e2e02771d0684f73def0fd11012a31
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50b410b06e416f408e2e80cd2d313fc77
SHA1168f988b5ab15c10b2c42bf0a354838059876830
SHA256da53371d10b4cca44ad014b591dbc96c9c6d5d02261afd8d8c286a54ca211010
SHA512ddb56c4de0affb3d9cdffd20299ad1c01d6ab50b94fbbd13d03c30e3c58cadc11e973b4f3a83db111807e3d7e3c1b9a6134b1e92702c5fa2380b244709fbe7d9
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD56245d5d430f2d94c5f5e2e8d58511db0
SHA159615771866cbd8857c68750217a71ab4257cb83
SHA256014c516df93769bd4c83ada49a2bf62ff754c857705237308707ef8feb986bfc
SHA512b37f56af4c2ff5eff59f29aee82538c3a6286a237e1d6d57817d571179da0113af2b492eb1f0a1a5b7d5e6a0b7f5bd55a914aed5e5e98f921e47d57dbe31186f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cba3d2a527669deda1fb6ea3594ef034
SHA1c90e709bae4d5e582104bd3d531c56f3b5c681f7
SHA256ede6b778d2a7df0aa4683d598e2502d667b6c2d77795bf5374abc79513572d26
SHA51248be4c4f8d8f3423e1eaeeec5451af16b21a9ebc9d07fccc8e5802f9be402b910108e88ee69a378db14462f2dc66a3eef3b906a94d509ae88996a4f82a0f4d12
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Filesize
4.1MB
MD5a3834f83074aca980bcc6a01a92e23d2
SHA132ebd65ca8a92202c7e6ff84f219b37590f48ef7
SHA256ec4167777540b70413abb52b68f385f1566b72b4a4d8f9b67fe59fe339bf32ff
SHA512f1d9725d3522abeb498aa8caf1e868e0357c4c3535caf9346c3ee21f379a8a1f2e579360bda22926d3f584be4d446e2a1b774d428d3785d96bbacc2eb128b979
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec