ceb67544c1ac260436d5610511175e81de48daa1684790b5da6aa8fef8f69695

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2024, 04:23

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General

Target

cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe
Size

70KB
MD5

cd8c3e8a16058e3a4c6e84763acc6fe0
SHA1

adf3e38d86de3d04bcf0d4280114e9052d19d922
SHA256

ceb67544c1ac260436d5610511175e81de48daa1684790b5da6aa8fef8f69695
SHA512

b95f4d66957061a21c3bc34ac06c39869ab72d5d3ab76c8516422ae16f0faf0f811e077fb32a73444dd55f2e2af47d3e10ef4433933ad3ad19c8abe666db1a7b
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8EfYD:Olg35GTslA5t3/w8Ea

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\FirewallDisableNotify = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	evcodon.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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{59434C45-5854-414c-5943-4C455854414c}	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{59434C45-5854-414c-5943-4C455854414c}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{59434C45-5854-414c-5943-4C455854414c}\IsInstalled = "1"	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{59434C45-5854-414c-5943-4C455854414c}\StubPath = "C:\\Windows\\system32\\arxirub.exe"	evcodon.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ouctoohoah.exe"	evcodon.exe

Executes dropped EXE 2 IoCs

pid	Process
2496	evcodon.exe
3848	evcodon.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\FirewallDisableNotify = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	evcodon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	evcodon.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}	evcodon.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\ucbeavid-gum.dll"	evcodon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	evcodon.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\evcodon.exe	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe
File created	C:\Windows\SysWOW64\evcodon.exe	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe
File opened for modification	C:\Windows\SysWOW64\ouctoohoah.exe	evcodon.exe
File created	C:\Windows\SysWOW64\ucbeavid-gum.dll	evcodon.exe
File opened for modification	C:\Windows\SysWOW64\evcodon.exe	evcodon.exe
File created	C:\Windows\SysWOW64\ouctoohoah.exe	evcodon.exe
File opened for modification	C:\Windows\SysWOW64\arxirub.exe	evcodon.exe
File created	C:\Windows\SysWOW64\arxirub.exe	evcodon.exe
File opened for modification	C:\Windows\SysWOW64\ucbeavid-gum.dll	evcodon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
3848	evcodon.exe
3848	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe
2496	evcodon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe
Token: SeDebugPrivilege	2496	evcodon.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2496	2680	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe	83
PID 2680 wrote to memory of 2496	2680	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe	83
PID 2680 wrote to memory of 2496	2680	cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe	83
PID 2496 wrote to memory of 616	2496	evcodon.exe	5
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3848	2496	evcodon.exe	84
PID 2496 wrote to memory of 3848	2496	evcodon.exe	84
PID 2496 wrote to memory of 3848	2496	evcodon.exe	84
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55
PID 2496 wrote to memory of 3500	2496	evcodon.exe	55

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3500
- C:\Users\Admin\AppData\Local\Temp\cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe
  "C:\Users\Admin\AppData\Local\Temp\cd8c3e8a16058e3a4c6e84763acc6fe0_NEIKI.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\evcodon.exe
    "C:\Windows\system32\evcodon.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:2496
  - - C:\Windows\SysWOW64\evcodon.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:3848

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\arxirub.exe

Filesize
72KB

MD5
696ab06055c57bf02c49b8c4248edc01

SHA1
32bea8775020c5a5622e299dd745726777f67104

SHA256
4201aa9f00f8bf1920ba0d9e6df87118fd3b5dd9f972089c8e8aa25189ba59ee

SHA512
650b40cde78c6af808ff1e2678cabb598b2c62c61f8e268dd6c4dca1be3598a98578eaadf3659134b3f7b5df862ba8911d0b86d80ec69250bededdb3a98e73b0

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

Filesize
70KB

MD5
cd8c3e8a16058e3a4c6e84763acc6fe0

SHA1
adf3e38d86de3d04bcf0d4280114e9052d19d922

SHA256
ceb67544c1ac260436d5610511175e81de48daa1684790b5da6aa8fef8f69695

SHA512
b95f4d66957061a21c3bc34ac06c39869ab72d5d3ab76c8516422ae16f0faf0f811e077fb32a73444dd55f2e2af47d3e10ef4433933ad3ad19c8abe666db1a7b

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

Filesize
73KB

MD5
11cd1858172237a8bf7de94bbf728020

SHA1
065ca8f2d558a0b9ce930e2fe5e943d05a9f3573

SHA256
63a9a1934cc4361b2f0b397114307fe161d4597835323afd1159050940dee862

SHA512
6f33d197e0f162e81601ef2029eec1075900befed92a8d191e14068a59536707cd91a779948b2756ed09f3797df0433aa1b51aaea9da1b472caeb56020a522e2

Download Submit
C:\Windows\SysWOW64\ucbeavid-gum.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
memory/2496-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2680-4-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3848-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download