Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2023 00:41
Static task
static1
General
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Target
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe
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Size
4.0MB
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MD5
ae3a43b474cd6f9590c395c7e3623dd4
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SHA1
3662de97ee842e0a9f86c1c01e66026de8fe5393
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SHA256
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866
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SHA512
02caf1157eb00375a63b4bad6b61b6ae4cdcc9d307611b6e68449a0fee365fd7f03eff52b30274a2000855ffe6eb4eb61692ac87ebc53bf84e8aa4510d701f27
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SSDEEP
98304:5AEP08IlO5HIyHblLw4/BP/sCf9zhVR3d5BVBo9QdBKJUYF86xE5:5c8EO5HIy79V/dFWJs
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
Processes:
svchost.exedescription pid process target process PID 1176 created 3448 1176 svchost.exe 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe PID 1176 created 4740 1176 svchost.exe csrss.exe PID 1176 created 4740 1176 svchost.exe csrss.exe PID 1176 created 4740 1176 svchost.exe csrss.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
Processes:
csrss.exeinjector.exepid process 4740 csrss.exe 2300 injector.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in Windows directory 2 IoCs
Processes:
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exedescription ioc process File opened for modification C:\Windows\rss 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe File created C:\Windows\rss\csrss.exe 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.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 3672 schtasks.exe 4060 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
Processes:
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.execsrss.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-871 = "Pakistan Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1821 = "Russia TZ 1 Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs csrss.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs csrss.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exeinjector.execsrss.exepid process 3448 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 3448 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 4740 csrss.exe 4740 csrss.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 4740 csrss.exe 4740 csrss.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe 2300 injector.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
Processes:
547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exesvchost.execsrss.exedescription pid process Token: SeDebugPrivilege 3448 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Token: SeImpersonatePrivilege 3448 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe Token: SeTcbPrivilege 1176 svchost.exe Token: SeTcbPrivilege 1176 svchost.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe Token: SeSystemEnvironmentPrivilege 4740 csrss.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe Token: SeBackupPrivilege 1176 svchost.exe Token: SeRestorePrivilege 1176 svchost.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
svchost.exe547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.execmd.execsrss.exedescription pid process target process PID 1176 wrote to memory of 2208 1176 svchost.exe 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe PID 1176 wrote to memory of 2208 1176 svchost.exe 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe PID 1176 wrote to memory of 2208 1176 svchost.exe 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe PID 2208 wrote to memory of 2524 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe cmd.exe PID 2208 wrote to memory of 2524 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe cmd.exe PID 2524 wrote to memory of 4796 2524 cmd.exe netsh.exe PID 2524 wrote to memory of 4796 2524 cmd.exe netsh.exe PID 2208 wrote to memory of 4740 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe csrss.exe PID 2208 wrote to memory of 4740 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe csrss.exe PID 2208 wrote to memory of 4740 2208 547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe csrss.exe PID 1176 wrote to memory of 4060 1176 svchost.exe schtasks.exe PID 1176 wrote to memory of 4060 1176 svchost.exe schtasks.exe PID 1176 wrote to memory of 4808 1176 svchost.exe schtasks.exe PID 1176 wrote to memory of 4808 1176 svchost.exe schtasks.exe PID 4740 wrote to memory of 2300 4740 csrss.exe injector.exe PID 4740 wrote to memory of 2300 4740 csrss.exe injector.exe PID 1176 wrote to memory of 3672 1176 svchost.exe schtasks.exe PID 1176 wrote to memory of 3672 1176 svchost.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe"C:\Users\Admin\AppData\Local\Temp\547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe"C:\Users\Admin\AppData\Local\Temp\547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866.exe"2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- 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⤵
- Modifies Windows Firewall
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- 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 /delete /tn ScheduledUpdate /f4⤵
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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
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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\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\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD5ae3a43b474cd6f9590c395c7e3623dd4
SHA13662de97ee842e0a9f86c1c01e66026de8fe5393
SHA256547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866
SHA51202caf1157eb00375a63b4bad6b61b6ae4cdcc9d307611b6e68449a0fee365fd7f03eff52b30274a2000855ffe6eb4eb61692ac87ebc53bf84e8aa4510d701f27
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C:\Windows\rss\csrss.exeFilesize
4.0MB
MD5ae3a43b474cd6f9590c395c7e3623dd4
SHA13662de97ee842e0a9f86c1c01e66026de8fe5393
SHA256547d4a92ba2fd30773f48e2c493ddb59fa6c29f95156f01665875ed2745d8866
SHA51202caf1157eb00375a63b4bad6b61b6ae4cdcc9d307611b6e68449a0fee365fd7f03eff52b30274a2000855ffe6eb4eb61692ac87ebc53bf84e8aa4510d701f27
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memory/2208-135-0x0000000000000000-mapping.dmp
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memory/2208-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2208-139-0x00000000029C7000-0x0000000002DB0000-memory.dmpFilesize
3.9MB
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memory/2208-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/2300-149-0x0000000000000000-mapping.dmp
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memory/2524-137-0x0000000000000000-mapping.dmp
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memory/3448-132-0x0000000002BB6000-0x0000000002F9F000-memory.dmpFilesize
3.9MB
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memory/3448-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3448-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3448-133-0x0000000002FA0000-0x0000000003817000-memory.dmpFilesize
8.5MB
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memory/3672-152-0x0000000000000000-mapping.dmp
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memory/4060-145-0x0000000000000000-mapping.dmp
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memory/4740-141-0x0000000000000000-mapping.dmp
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memory/4740-147-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/4740-148-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4740-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4796-138-0x0000000000000000-mapping.dmp
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memory/4808-146-0x0000000000000000-mapping.dmp