Analysis
- max time kernel
183s - max time network
186s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
01/10/2022, 23:36
Static task
static1
Behavioral task
behavioral1
Sample
03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe
Resource
win7-20220812-en
12 signatures
150 seconds
General
- Target 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe
- Size 239KB
- Sample221001-3ltghsddcn
- SHA256 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170
- MD5 69b7c08a2e149ceb4f6ff9bd61f14290
- SHA1 0c81051d61536ec14fe193e64bda356a885b63cd
- SHA512 ee6076e993a0db2b408077ecbfdcaa69e63e965699bfe8ff0e29005bc081e220ac600b6daf6af1a8a81cc722f990b69cad7483596fc5ffde87b4799a6d7b73e1
- SSDEEP 6144:/27gCbTehEqclWYacI5Jg6A0xPl4aX5D8owFSunNQLW3:/27/bTehEqclrt2X44JUSunOLA
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects PlugX payload 8 IoCs
resource yara_rule behavioral2/memory/4452-139-0x00000000006C0000-0x00000000006F0000-memory.dmp family_plugx behavioral2/memory/4220-149-0x00000000005C0000-0x00000000005F0000-memory.dmp family_plugx behavioral2/memory/1968-150-0x0000000000E30000-0x0000000000E60000-memory.dmp family_plugx behavioral2/memory/4368-153-0x0000000000DC0000-0x0000000000DF0000-memory.dmp family_plugx behavioral2/memory/4220-154-0x00000000005C0000-0x00000000005F0000-memory.dmp family_plugx behavioral2/memory/4328-156-0x0000000001610000-0x0000000001640000-memory.dmp family_plugx behavioral2/memory/4368-157-0x0000000000DC0000-0x0000000000DF0000-memory.dmp family_plugx behavioral2/memory/4328-158-0x0000000001610000-0x0000000001640000-memory.dmp family_plugx - Executes dropped EXE 3 IoCs
pid Process 4452 NvSmart.exe 4220 NvSmart.exe 1968 NvSmart.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe - Loads dropped DLL 3 IoCs
pid Process 4452 NvSmart.exe 4220 NvSmart.exe 1968 NvSmart.exe - Drops file in Program Files directory 7 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files NvSmart.exe File opened for modification C:\Program Files (x86)\Common Files\NvSmart.dat NvSmart.exe File created C:\Program Files (x86)\Common Files\NvSmart.dat NvSmart.exe File opened for modification C:\Program Files (x86)\Common Files\NvSmart.exe NvSmart.exe File created C:\Program Files (x86)\Common Files\NvSmart.exe NvSmart.exe File opened for modification C:\Program Files (x86)\Common Files\NvSmartMax.dll NvSmart.exe File created C:\Program Files (x86)\Common Files\NvSmartMax.dll NvSmart.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies data under HKEY_USERS 17 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0 svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" svchost.exe - Modifies registry class 2 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\FAST\CLSID = 36004500440033004600310031003100340044003600390043004200370043000000 svchost.exe Key created \REGISTRY\MACHINE\Software\CLASSES\FAST svchost.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4452 NvSmart.exe 4452 NvSmart.exe 4368 svchost.exe 4368 svchost.exe 4368 svchost.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4368 svchost.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4368 svchost.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4368 svchost.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4368 svchost.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe 4328 msiexec.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 4368 svchost.exe 4328 msiexec.exe - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 4452 NvSmart.exe Token: SeTcbPrivilege 4452 NvSmart.exe Token: SeDebugPrivilege 4220 NvSmart.exe Token: SeTcbPrivilege 4220 NvSmart.exe Token: SeDebugPrivilege 1968 NvSmart.exe Token: SeTcbPrivilege 1968 NvSmart.exe Token: SeDebugPrivilege 4368 svchost.exe Token: SeTcbPrivilege 4368 svchost.exe Token: SeDebugPrivilege 4328 msiexec.exe Token: SeTcbPrivilege 4328 msiexec.exe - Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 1124 wrote to memory of 4452 1124 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe 82 PID 1124 wrote to memory of 4452 1124 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe 82 PID 1124 wrote to memory of 4452 1124 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe 82 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 1968 wrote to memory of 4368 1968 NvSmart.exe 85 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86 PID 4368 wrote to memory of 4328 4368 svchost.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe"C:\Users\Admin\AppData\Local\Temp\03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4452
-
-
C:\Program Files (x86)\Common Files\NvSmart.exe"C:\Program Files (x86)\Common Files\NvSmart.exe" 100 44521⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:4220
-
C:\Program Files (x86)\Common Files\NvSmart.exe"C:\Program Files (x86)\Common Files\NvSmart.exe" 200 01⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe 201 02⤵
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\SysWOW64\msiexec.exeC:\Windows\system32\msiexec.exe 209 43683⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Common Files\NvSmart.dat
- Size 120KB
- SHA256 0ebcbb904423910f81d8813852a0b4d73edbcc4d4216d58b723bc130eccbc2d0
- MD5 92821c7ab934963e9b04f917d272cefc
- SHA1 e8c092d9f0858dda6378962f20e44ffc39245f73
- SHA512 3cccbd7955a5baf3056140bfdef68e7e3e9cd193ae13a9e79074b7913360cb791dc95e9b5cff75227449ed9743dacc6711b12186b20193523915adf79d24c142
- SSDEEP 3072:Bmyt3cpbk8xPbJ2v/aNt8I5ECn87s95kaeH:8A0xPl4aX5D8owF
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmart.exe
- Size 43KB
- SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
- MD5 4d0c8f09a4e3bd5c063c2c4f100ed8d6
- SHA1 7f9193357d84761336184851ac06464efd41a09b
- SHA512 4fa141785dba9aabb01ce563f1e2d4b1e96b75a8eefd44814160520de0c3da9c084e65e494fe3566db9c1094aad46efe8b4b546236432b582c4724542f210b21
- SSDEEP 768:wp+QDJgY/OTFStOWjmyPTc+6lye958ZwPOz:wpj9IexPANL58Zw0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmart.exe
- Size 43KB
- SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
- MD5 4d0c8f09a4e3bd5c063c2c4f100ed8d6
- SHA1 7f9193357d84761336184851ac06464efd41a09b
- SHA512 4fa141785dba9aabb01ce563f1e2d4b1e96b75a8eefd44814160520de0c3da9c084e65e494fe3566db9c1094aad46efe8b4b546236432b582c4724542f210b21
- SSDEEP 768:wp+QDJgY/OTFStOWjmyPTc+6lye958ZwPOz:wpj9IexPANL58Zw0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmart.exe
- Size 43KB
- SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
- MD5 4d0c8f09a4e3bd5c063c2c4f100ed8d6
- SHA1 7f9193357d84761336184851ac06464efd41a09b
- SHA512 4fa141785dba9aabb01ce563f1e2d4b1e96b75a8eefd44814160520de0c3da9c084e65e494fe3566db9c1094aad46efe8b4b546236432b582c4724542f210b21
- SSDEEP 768:wp+QDJgY/OTFStOWjmyPTc+6lye958ZwPOz:wpj9IexPANL58Zw0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
- Size 11KB
- SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
- MD5 1fab1cd41b73e9a485c4237307c72d24
- SHA1 f48a4e1cafbf00c33221c605dc2f843dba74f903
- SHA512 70dd3d214dd2871364253775a404c35ae91db388108e8577d49de368a93f15ce542aa1c5408e1b4640371999d09e186741a911ed39f044320fd7ee04b7eeab85
- SSDEEP 192:0ENy/gpKQq2yBx92Ol5gfLtUcynY335/wJirNmL/a7mK8tF0ou7+wNsLhZ:0Epax99l5gfmnY3mirILjugL3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
- Size 11KB
- SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
- MD5 1fab1cd41b73e9a485c4237307c72d24
- SHA1 f48a4e1cafbf00c33221c605dc2f843dba74f903
- SHA512 70dd3d214dd2871364253775a404c35ae91db388108e8577d49de368a93f15ce542aa1c5408e1b4640371999d09e186741a911ed39f044320fd7ee04b7eeab85
- SSDEEP 192:0ENy/gpKQq2yBx92Ol5gfLtUcynY335/wJirNmL/a7mK8tF0ou7+wNsLhZ:0Epax99l5gfmnY3mirILjugL3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
- Size 11KB
- SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
- MD5 1fab1cd41b73e9a485c4237307c72d24
- SHA1 f48a4e1cafbf00c33221c605dc2f843dba74f903
- SHA512 70dd3d214dd2871364253775a404c35ae91db388108e8577d49de368a93f15ce542aa1c5408e1b4640371999d09e186741a911ed39f044320fd7ee04b7eeab85
- SSDEEP 192:0ENy/gpKQq2yBx92Ol5gfLtUcynY335/wJirNmL/a7mK8tF0ou7+wNsLhZ:0Epax99l5gfmnY3mirILjugL3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\SxS\bug.log
- Size 622B
- SHA256 f68ca5f7eb5815eb731290d1d8baf8f33c3bd83c812649e43b1c6347b58a7f2b
- MD5 25ec741c4d8175b431543fdc0fc41206
- SHA1 511d2c4cdb77c67cd26f2a8d58ede37d9f8b114c
- SHA512 a1f1b660979943de1831da3ba74013654bcf3be314a88c6719859348ebf1a6f81468c259a50a57599b131e806c87a0f034f34aee03a1e4cfd6f13b6f9bee864c
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.dat
- Size 120KB
- SHA256 0ebcbb904423910f81d8813852a0b4d73edbcc4d4216d58b723bc130eccbc2d0
- MD5 92821c7ab934963e9b04f917d272cefc
- SHA1 e8c092d9f0858dda6378962f20e44ffc39245f73
- SHA512 3cccbd7955a5baf3056140bfdef68e7e3e9cd193ae13a9e79074b7913360cb791dc95e9b5cff75227449ed9743dacc6711b12186b20193523915adf79d24c142
- SSDEEP 3072:Bmyt3cpbk8xPbJ2v/aNt8I5ECn87s95kaeH:8A0xPl4aX5D8owF
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe
- Size 43KB
- SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
- MD5 4d0c8f09a4e3bd5c063c2c4f100ed8d6
- SHA1 7f9193357d84761336184851ac06464efd41a09b
- SHA512 4fa141785dba9aabb01ce563f1e2d4b1e96b75a8eefd44814160520de0c3da9c084e65e494fe3566db9c1094aad46efe8b4b546236432b582c4724542f210b21
- SSDEEP 768:wp+QDJgY/OTFStOWjmyPTc+6lye958ZwPOz:wpj9IexPANL58Zw0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe
- Size 43KB
- SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
- MD5 4d0c8f09a4e3bd5c063c2c4f100ed8d6
- SHA1 7f9193357d84761336184851ac06464efd41a09b
- SHA512 4fa141785dba9aabb01ce563f1e2d4b1e96b75a8eefd44814160520de0c3da9c084e65e494fe3566db9c1094aad46efe8b4b546236432b582c4724542f210b21
- SSDEEP 768:wp+QDJgY/OTFStOWjmyPTc+6lye958ZwPOz:wpj9IexPANL58Zw0
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmartMax.dll
- Size 11KB
- SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
- MD5 1fab1cd41b73e9a485c4237307c72d24
- SHA1 f48a4e1cafbf00c33221c605dc2f843dba74f903
- SHA512 70dd3d214dd2871364253775a404c35ae91db388108e8577d49de368a93f15ce542aa1c5408e1b4640371999d09e186741a911ed39f044320fd7ee04b7eeab85
- SSDEEP 192:0ENy/gpKQq2yBx92Ol5gfLtUcynY335/wJirNmL/a7mK8tF0ou7+wNsLhZ:0Epax99l5gfmnY3mirILjugL3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmartMax.dll
- Size 11KB
- SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
- MD5 1fab1cd41b73e9a485c4237307c72d24
- SHA1 f48a4e1cafbf00c33221c605dc2f843dba74f903
- SHA512 70dd3d214dd2871364253775a404c35ae91db388108e8577d49de368a93f15ce542aa1c5408e1b4640371999d09e186741a911ed39f044320fd7ee04b7eeab85
- SSDEEP 192:0ENy/gpKQq2yBx92Ol5gfLtUcynY335/wJirNmL/a7mK8tF0ou7+wNsLhZ:0Epax99l5gfmnY3mirILjugL3
- MD5 SHA1 SHA512 SSDEEP