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Analysis
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max time kernel
118s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
04/11/2023, 20:44
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.497c703002250e05da75df461c3abe10_JC.dll
Resource
win7-20231023-en
General
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Target
NEAS.497c703002250e05da75df461c3abe10_JC.dll
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Size
120KB
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MD5
497c703002250e05da75df461c3abe10
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SHA1
970cc6a10c30f287fbea64f3ef43a3f434dbd5d6
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SHA256
2848230b3fee8839522d26325c2ab483dccc673abcd54ed26034dcafad42b35b
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SHA512
58838b8676c97b71178cd85d4f34a0b663544839dea615f049837fa31c652ed998a8206f2e1eb9a49caa5d72ab3ee18ecaca8ca9295a357c5231773f645078ce
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SSDEEP
1536:+afsUrDdlnvTbabOyTnaGEvr1CQQ5+ZZCNHsoI0Ls1j0H7XgzOoASDSdRYP:+kndln2FTaLRJc+v0qos4H7Xgfh
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\EnableFirewall = "0" f764a68.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" f764a68.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" f764a68.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f764a68.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" f764a68.exe -
Executes dropped EXE 3 IoCs
pid Process 2424 f764a68.exe 1340 f7654d4.exe 2960 f76626b.exe -
Loads dropped DLL 6 IoCs
pid Process 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe -
resource yara_rule behavioral1/memory/2424-11-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-15-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-16-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-19-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-23-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-26-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-46-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-29-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-51-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-54-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-63-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-64-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-65-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-79-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-82-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-84-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-86-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-87-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-91-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-106-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2424-110-0x0000000000630000-0x00000000016EA000-memory.dmp upx behavioral1/memory/2960-144-0x0000000000920000-0x00000000019DA000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" f764a68.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" f764a68.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" f764a68.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" f764a68.exe -
Enumerates connected drives 3 TTPs 5 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: f764a68.exe File opened (read-only) \??\G: f764a68.exe File opened (read-only) \??\H: f764a68.exe File opened (read-only) \??\I: f764a68.exe File opened (read-only) \??\J: f764a68.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI f764a68.exe File created C:\Windows\f764b91 f764a68.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2424 f764a68.exe 2424 f764a68.exe -
Suspicious use of AdjustPrivilegeToken 21 IoCs
description pid Process Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe Token: SeDebugPrivilege 2424 f764a68.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 3036 wrote to memory of 2852 3036 rundll32.exe 28 PID 2852 wrote to memory of 2424 2852 rundll32.exe 29 PID 2852 wrote to memory of 2424 2852 rundll32.exe 29 PID 2852 wrote to memory of 2424 2852 rundll32.exe 29 PID 2852 wrote to memory of 2424 2852 rundll32.exe 29 PID 2424 wrote to memory of 1260 2424 f764a68.exe 10 PID 2424 wrote to memory of 1380 2424 f764a68.exe 11 PID 2424 wrote to memory of 1404 2424 f764a68.exe 12 PID 2424 wrote to memory of 2036 2424 f764a68.exe 15 PID 2424 wrote to memory of 3036 2424 f764a68.exe 27 PID 2424 wrote to memory of 2852 2424 f764a68.exe 28 PID 2424 wrote to memory of 2852 2424 f764a68.exe 28 PID 2852 wrote to memory of 1340 2852 rundll32.exe 30 PID 2852 wrote to memory of 1340 2852 rundll32.exe 30 PID 2852 wrote to memory of 1340 2852 rundll32.exe 30 PID 2852 wrote to memory of 1340 2852 rundll32.exe 30 PID 2852 wrote to memory of 2960 2852 rundll32.exe 31 PID 2852 wrote to memory of 2960 2852 rundll32.exe 31 PID 2852 wrote to memory of 2960 2852 rundll32.exe 31 PID 2852 wrote to memory of 2960 2852 rundll32.exe 31 PID 2424 wrote to memory of 1260 2424 f764a68.exe 10 PID 2424 wrote to memory of 1380 2424 f764a68.exe 11 PID 2424 wrote to memory of 1404 2424 f764a68.exe 12 PID 2424 wrote to memory of 1340 2424 f764a68.exe 30 PID 2424 wrote to memory of 1340 2424 f764a68.exe 30 PID 2424 wrote to memory of 2960 2424 f764a68.exe 31 PID 2424 wrote to memory of 2960 2424 f764a68.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" f764a68.exe
Processes
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1260
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1380
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1404
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.497c703002250e05da75df461c3abe10_JC.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.497c703002250e05da75df461c3abe10_JC.dll,#13⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Users\Admin\AppData\Local\Temp\f764a68.exeC:\Users\Admin\AppData\Local\Temp\f764a68.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:2424
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C:\Users\Admin\AppData\Local\Temp\f7654d4.exeC:\Users\Admin\AppData\Local\Temp\f7654d4.exe4⤵
- Executes dropped EXE
PID:1340
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C:\Users\Admin\AppData\Local\Temp\f76626b.exeC:\Users\Admin\AppData\Local\Temp\f76626b.exe4⤵
- Executes dropped EXE
PID:2960
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:2036
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
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd
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Filesize
97KB
MD5880ca3866837d385c4cf916bbd6a9a71
SHA112d00b66c2722104d814f68d912c9efed6f0b1c2
SHA25658000b259c9a4d87938cb31a84c38391ee69c69c83f7bc23c64a5c86abd1ee7e
SHA51233af9ff516b9c7a2ef2b9eff4038a18d3264c5d7eb0cea80841147f13eb5fede50b9630c95859b4d90bb71724840a00f0a6d7d0e2f023e17ec42b9c68d7587dd