e708b9a1e66e390fb9cef6ddf1e39de6dbaeb37d4d74bc09d81f53b0b7014432

Analysis

max time kernel
149s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 21:36

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General

Target

3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe
Size

72KB
MD5

3e9bca3540c8bd2985c8ad2807d6b730
SHA1

bc092124466bb50a9651bbd8bf76b26e63370f35
SHA256

e708b9a1e66e390fb9cef6ddf1e39de6dbaeb37d4d74bc09d81f53b0b7014432
SHA512

696e6d731490e8625877d5370003a097b75c318673607bfe88d765b7d12bbdd6d8ad3e5001aa1f86ecd51035343f903c4109042c731f6c6f431808da3a717c74
SSDEEP

768:x/nEuhThEUAvMgvvd9WhTOng8X6m2AYS1rg1YJZLIgwRdPxCdYLndQxzGp5hhJyQ:xs0evMm+tgg1XS181xbGgdjhh9ZoPbU

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	angoasep.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45584E43-4c5a-4c49-4558-4E434C5A4c49}\StubPath = "C:\\Windows\\system32\\iphuxeak-mex.exe"	angoasep.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45584E43-4c5a-4c49-4558-4E434C5A4c49}	angoasep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45584E43-4c5a-4c49-4558-4E434C5A4c49}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45584E43-4c5a-4c49-4558-4E434C5A4c49}\IsInstalled = "1"	angoasep.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	angoasep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\usvunid.exe"	angoasep.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	angoasep.exe

Executes dropped EXE 2 IoCs

pid	Process
1648	angoasep.exe
2276	angoasep.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	angoasep.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	angoasep.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	angoasep.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	angoasep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	angoasep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\otdonuk.dll"	angoasep.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	angoasep.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\angoasep.exe	3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe
File created	C:\Windows\SysWOW64\angoasep.exe	3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe
File created	C:\Windows\SysWOW64\usvunid.exe	angoasep.exe
File opened for modification	C:\Windows\SysWOW64\otdonuk.dll	angoasep.exe
File opened for modification	C:\Windows\SysWOW64\angoasep.exe	angoasep.exe
File opened for modification	C:\Windows\SysWOW64\usvunid.exe	angoasep.exe
File opened for modification	C:\Windows\SysWOW64\iphuxeak-mex.exe	angoasep.exe
File created	C:\Windows\SysWOW64\iphuxeak-mex.exe	angoasep.exe
File created	C:\Windows\SysWOW64\otdonuk.dll	angoasep.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
2276	angoasep.exe
2276	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe
1648	angoasep.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1648	angoasep.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 760 wrote to memory of 1648	760	3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe	83
PID 760 wrote to memory of 1648	760	3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe	83
PID 760 wrote to memory of 1648	760	3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe	83
PID 1648 wrote to memory of 2276	1648	angoasep.exe	84
PID 1648 wrote to memory of 2276	1648	angoasep.exe	84
PID 1648 wrote to memory of 2276	1648	angoasep.exe	84
PID 1648 wrote to memory of 608	1648	angoasep.exe	5
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56
PID 1648 wrote to memory of 3452	1648	angoasep.exe	56

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:608

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3452
- C:\Users\Admin\AppData\Local\Temp\3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe
  "C:\Users\Admin\AppData\Local\Temp\3e9bca3540c8bd2985c8ad2807d6b730_NEIKI.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:760
- - C:\Windows\SysWOW64\angoasep.exe
    "C:\Windows\SysWOW64\angoasep.exe"
    3⤵
    - Windows security bypass
    - Modifies Installed Components in the registry
    - Sets file execution options in registry
    - Executes dropped EXE
    - Windows security modification
    - Modifies WinLogon
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1648
  - - C:\Windows\SysWOW64\angoasep.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\angoasep.exe

Filesize
70KB

MD5
a15c48532bca3166702729b0e035f20e

SHA1
22a3423ff5fa5638b1a80a4df78c3e9792cecbfd

SHA256
7467ad056277caae1eb65c0f52b7fff252af1d9987a7b9a22136d08f916b3cec

SHA512
051e57d17b4b0b4d011a11f8062dbd6a226d1d701883f89751efbb97645ba2fb88da887f5c73b28e9ec154ad3b77df0f8a10374a4692160dd9fc8ad774be0772

Download Submit
C:\Windows\SysWOW64\iphuxeak-mex.exe

Filesize
72KB

MD5
51ccbe3b014be37abccb660a9c5d5f95

SHA1
b8e5afd68b6fd9fa28fca8b4c94c54fc89a09335

SHA256
3361bbb5fbc8993303b2f9bc519e9683cdbe8bb0651e3e7fea984042de0ba894

SHA512
f34692c51090fc8af48856962a4c7597aeb8f72b813a37fea6306974aa7525506bc86d3f7538eb9afda439ee8c17f867935f40f4d8d81be039bcb78cce1e4dae

Download Submit
C:\Windows\SysWOW64\otdonuk.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\usvunid.exe

Filesize
73KB

MD5
6bee52de31357550cc1bcb0f96aa328e

SHA1
63e731c5dd4b87da84461e5b63a0f5264280d1b4

SHA256
047c388c7ef957f5c98931d98bb7e0dd896128704bdbdc6805c9f7daa5b317a7

SHA512
3666e797d4571b52bc8ac7bb57e594e058e218c3c35424d9f3d2518b996fb46d9f49bcf2cd65693dfa2ac2bc8f6225fc2ee4b34058c1cff03ff67cd61af9ded3

Download Submit
memory/760-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1648-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2276-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download