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Analysis
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max time kernel
122s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
22/10/2023, 15:32
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.7444ca9be507f7fa198023822cc1a620_JC.dll
Resource
win7-20231020-en
General
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Target
NEAS.7444ca9be507f7fa198023822cc1a620_JC.dll
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Size
120KB
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MD5
7444ca9be507f7fa198023822cc1a620
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SHA1
7ed05d2244091f15b793b28a9e646f3baf0e86df
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SHA256
edf6405fadb1f3931a8119f5cfdad3f89f023898837345bf546d815b36be7d62
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SHA512
0bee40b8c8ee3d3cfad93dccdadd3d40cf9ac05c5289ab14e3687c6239721b68fbbaa763f0af140e183c30932c33371c54d8978501d57d3b6479ed98fa0ac1c7
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SSDEEP
3072:zyil/H99lEtGCp0m5kJ8OMFiFY5Cy6/fz:eitHDytl0sINfZyo
Malware Config
Extracted
sality
http://89.119.67.154/testo5/
http://kukutrustnet777.info/home.gif
http://kukutrustnet888.info/home.gif
http://kukutrustnet987.info/home.gif
Signatures
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Modifies firewall policy service 2 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" f768804.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" f768804.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f768804.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" f768804.exe -
Executes dropped EXE 3 IoCs
pid Process 2252 f768804.exe 1028 f769138.exe 2304 f76a209.exe -
Loads dropped DLL 6 IoCs
pid Process 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe -
resource yara_rule behavioral1/memory/2252-13-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-15-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-16-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-20-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-32-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-25-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-50-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-59-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-60-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-61-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-62-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-63-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-64-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-76-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-81-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-83-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-84-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-86-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-88-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-108-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-110-0x0000000000520000-0x00000000015DA000-memory.dmp upx behavioral1/memory/2252-144-0x0000000000520000-0x00000000015DA000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" f768804.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" f768804.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" f768804.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f768804.exe -
Enumerates connected drives 3 TTPs 8 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\J: f768804.exe File opened (read-only) \??\K: f768804.exe File opened (read-only) \??\L: f768804.exe File opened (read-only) \??\M: f768804.exe File opened (read-only) \??\E: f768804.exe File opened (read-only) \??\G: f768804.exe File opened (read-only) \??\H: f768804.exe File opened (read-only) \??\I: f768804.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\f7689c9 f768804.exe File opened for modification C:\Windows\SYSTEM.INI f768804.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2252 f768804.exe 2252 f768804.exe -
Suspicious use of AdjustPrivilegeToken 21 IoCs
description pid Process Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe Token: SeDebugPrivilege 2252 f768804.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 3032 wrote to memory of 1616 3032 rundll32.exe 28 PID 1616 wrote to memory of 2252 1616 rundll32.exe 29 PID 1616 wrote to memory of 2252 1616 rundll32.exe 29 PID 1616 wrote to memory of 2252 1616 rundll32.exe 29 PID 1616 wrote to memory of 2252 1616 rundll32.exe 29 PID 2252 wrote to memory of 1152 2252 f768804.exe 16 PID 2252 wrote to memory of 1232 2252 f768804.exe 23 PID 2252 wrote to memory of 1300 2252 f768804.exe 17 PID 2252 wrote to memory of 1956 2252 f768804.exe 22 PID 2252 wrote to memory of 3032 2252 f768804.exe 27 PID 2252 wrote to memory of 1616 2252 f768804.exe 28 PID 2252 wrote to memory of 1616 2252 f768804.exe 28 PID 1616 wrote to memory of 1028 1616 rundll32.exe 30 PID 1616 wrote to memory of 1028 1616 rundll32.exe 30 PID 1616 wrote to memory of 1028 1616 rundll32.exe 30 PID 1616 wrote to memory of 1028 1616 rundll32.exe 30 PID 1616 wrote to memory of 2304 1616 rundll32.exe 31 PID 1616 wrote to memory of 2304 1616 rundll32.exe 31 PID 1616 wrote to memory of 2304 1616 rundll32.exe 31 PID 1616 wrote to memory of 2304 1616 rundll32.exe 31 PID 2252 wrote to memory of 1152 2252 f768804.exe 16 PID 2252 wrote to memory of 1232 2252 f768804.exe 23 PID 2252 wrote to memory of 1300 2252 f768804.exe 17 PID 2252 wrote to memory of 1028 2252 f768804.exe 30 PID 2252 wrote to memory of 1028 2252 f768804.exe 30 PID 2252 wrote to memory of 2304 2252 f768804.exe 31 PID 2252 wrote to memory of 2304 2252 f768804.exe 31 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f768804.exe
Processes
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1152
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1300
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.7444ca9be507f7fa198023822cc1a620_JC.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.7444ca9be507f7fa198023822cc1a620_JC.dll,#13⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1616 -
C:\Users\Admin\AppData\Local\Temp\f768804.exeC:\Users\Admin\AppData\Local\Temp\f768804.exe4⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2252
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C:\Users\Admin\AppData\Local\Temp\f769138.exeC:\Users\Admin\AppData\Local\Temp\f769138.exe4⤵
- Executes dropped EXE
PID:1028
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C:\Users\Admin\AppData\Local\Temp\f76a209.exeC:\Users\Admin\AppData\Local\Temp\f76a209.exe4⤵
- Executes dropped EXE
PID:2304
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:1956
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1232
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
5Replay Monitor
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Downloads
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4
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Filesize
97KB
MD5db5cdc3f3373cf7cfc4f483b75bb3016
SHA130e9cb4cd8b233bd9d3c0f05139d5758aa2c2533
SHA2560338996034b265b34211ec5bec3908cac6bcfc082c7b964ead43a2f92537861c
SHA512871cf9cd382c31b5d883795f24b97a92d70145bef592b560d9a3da1a7e25d31d155648633917a0b357510a7afa061523348681694f12e7d61cabae74cec74de4