Analysis
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max time kernel
132s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2023, 19:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NEAS.c387c67e9e84e81cc0f1c20cffbb4da0.dll
Resource
win7-20230831-en
windows7-x64
15 signatures
150 seconds
General
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Target
NEAS.c387c67e9e84e81cc0f1c20cffbb4da0.dll
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Size
120KB
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MD5
c387c67e9e84e81cc0f1c20cffbb4da0
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SHA1
4c16f7ab26d85126528222cd3855791051522dfa
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SHA256
b09891b80ed57f6b6ddb85fbed7314eec1210a42ce17a8da03b45cf49eff8f64
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SHA512
cad76fb67edfc1a3f02d095fe453f587dc8f6cb3334ed42a493f366140ffeef50fdbc877a2a03025e8ddefbfb1186e849a374c59dc99420cf220adc933ed5696
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SSDEEP
1536:aYxNQ0S9MT4/oFj6dwDwo8YUNgS7w5YGeAmKdNxRaZlvgWRdPzXwgq1Ctq:vjR/IoFj6kk7OYGeAxRaZyW/Pz/q1CY
Malware Config
Extracted
Family
sality
C2
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\EnableFirewall = "0" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" e57d62c.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e57d62c.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" e57d62c.exe -
Executes dropped EXE 1 IoCs
pid Process 556 e57d62c.exe -
resource yara_rule behavioral2/memory/556-7-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-9-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-10-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-12-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-16-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-22-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-23-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-24-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-25-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-27-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-28-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-29-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-30-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-31-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-33-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-34-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-36-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-38-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-39-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-42-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-44-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-46-0x0000000000780000-0x000000000183A000-memory.dmp upx behavioral2/memory/556-50-0x0000000000780000-0x000000000183A000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" e57d62c.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" e57d62c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" e57d62c.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e57d62c.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) \??\L: e57d62c.exe File opened (read-only) \??\M: e57d62c.exe File opened (read-only) \??\E: e57d62c.exe File opened (read-only) \??\G: e57d62c.exe File opened (read-only) \??\H: e57d62c.exe File opened (read-only) \??\I: e57d62c.exe File opened (read-only) \??\J: e57d62c.exe File opened (read-only) \??\K: e57d62c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\e57d830 e57d62c.exe File opened for modification C:\Windows\SYSTEM.INI e57d62c.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 556 e57d62c.exe 556 e57d62c.exe 556 e57d62c.exe 556 e57d62c.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe Token: SeDebugPrivilege 556 e57d62c.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 3792 wrote to memory of 4924 3792 rundll32.exe 83 PID 3792 wrote to memory of 4924 3792 rundll32.exe 83 PID 3792 wrote to memory of 4924 3792 rundll32.exe 83 PID 4924 wrote to memory of 556 4924 rundll32.exe 84 PID 4924 wrote to memory of 556 4924 rundll32.exe 84 PID 4924 wrote to memory of 556 4924 rundll32.exe 84 PID 556 wrote to memory of 776 556 e57d62c.exe 81 PID 556 wrote to memory of 784 556 e57d62c.exe 80 PID 556 wrote to memory of 64 556 e57d62c.exe 8 PID 556 wrote to memory of 2452 556 e57d62c.exe 32 PID 556 wrote to memory of 2480 556 e57d62c.exe 70 PID 556 wrote to memory of 2820 556 e57d62c.exe 64 PID 556 wrote to memory of 3144 556 e57d62c.exe 61 PID 556 wrote to memory of 3240 556 e57d62c.exe 60 PID 556 wrote to memory of 3496 556 e57d62c.exe 59 PID 556 wrote to memory of 3648 556 e57d62c.exe 58 PID 556 wrote to memory of 3716 556 e57d62c.exe 34 PID 556 wrote to memory of 3816 556 e57d62c.exe 57 PID 556 wrote to memory of 4012 556 e57d62c.exe 56 PID 556 wrote to memory of 3744 556 e57d62c.exe 45 PID 556 wrote to memory of 2528 556 e57d62c.exe 44 PID 556 wrote to memory of 2872 556 e57d62c.exe 41 PID 556 wrote to memory of 4948 556 e57d62c.exe 36 PID 556 wrote to memory of 468 556 e57d62c.exe 35 PID 556 wrote to memory of 3792 556 e57d62c.exe 82 PID 556 wrote to memory of 776 556 e57d62c.exe 81 PID 556 wrote to memory of 784 556 e57d62c.exe 80 PID 556 wrote to memory of 64 556 e57d62c.exe 8 PID 556 wrote to memory of 2452 556 e57d62c.exe 32 PID 556 wrote to memory of 2480 556 e57d62c.exe 70 PID 556 wrote to memory of 2820 556 e57d62c.exe 64 PID 556 wrote to memory of 3144 556 e57d62c.exe 61 PID 556 wrote to memory of 3240 556 e57d62c.exe 60 PID 556 wrote to memory of 3496 556 e57d62c.exe 59 PID 556 wrote to memory of 3648 556 e57d62c.exe 58 PID 556 wrote to memory of 3716 556 e57d62c.exe 34 PID 556 wrote to memory of 3816 556 e57d62c.exe 57 PID 556 wrote to memory of 4012 556 e57d62c.exe 56 PID 556 wrote to memory of 3744 556 e57d62c.exe 45 PID 556 wrote to memory of 2528 556 e57d62c.exe 44 PID 556 wrote to memory of 2872 556 e57d62c.exe 41 PID 556 wrote to memory of 4948 556 e57d62c.exe 36 PID 556 wrote to memory of 468 556 e57d62c.exe 35 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" e57d62c.exe
Processes
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵PID:64
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2452
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3716
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵PID:468
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca1⤵PID:4948
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:2872
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:2528
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca1⤵PID:3744
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4012
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵PID:3816
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵PID:3648
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3496
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3240
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3144
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.c387c67e9e84e81cc0f1c20cffbb4da0.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3792 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.c387c67e9e84e81cc0f1c20cffbb4da0.dll,#13⤵
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Users\Admin\AppData\Local\Temp\e57d62c.exeC:\Users\Admin\AppData\Local\Temp\e57d62c.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:556
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵PID:2820
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2480
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:784
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:776
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
Loading Replay Monitor...
Downloads
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Filesize
97KB
MD5ff099816dd2cf8a7199b67994366b893
SHA1c4b32686a0e45da076d457ff5601c524d2080599
SHA256febb4fdaf98aa77cead96547c4c813a8ad9f34391cc2c60f361ff42d4005494c
SHA512043a2774fe6578f69d644d6b32cbf18bc6584b1d986a3311672667f00b82b78872dbffb1402cb63eda2a13202e2d73d5da2fdd314c54fde9ba61bee1c4ddf065
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Filesize
97KB
MD5ff099816dd2cf8a7199b67994366b893
SHA1c4b32686a0e45da076d457ff5601c524d2080599
SHA256febb4fdaf98aa77cead96547c4c813a8ad9f34391cc2c60f361ff42d4005494c
SHA512043a2774fe6578f69d644d6b32cbf18bc6584b1d986a3311672667f00b82b78872dbffb1402cb63eda2a13202e2d73d5da2fdd314c54fde9ba61bee1c4ddf065