171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95

General

Target

171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe
Size

70KB
MD5

3a5c8e20a6605099b772ed85343f5be6
SHA1

4d47584ed91f7149f96fb5341c6e230cefed9161
SHA256

171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95
SHA512

e9c005dad6243ed72066ce7660250b5b3cd079d78e9f394aa626131f5f27e12bc946cc2317628b0d9e809d8e23d7bb0947924f14e12942ae45945c0f9a87fe42
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8r:Olg35GTslA5t3/w8r

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

Processes:

evmanoor.exe

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

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

evmanoor.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}	evmanoor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	evmanoor.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\IsInstalled = "1"	evmanoor.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F424A49-5955-4945-4F42-4A4959554945}\StubPath = "C:\\Windows\\system32\\onkeavoam.exe"	evmanoor.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

evmanoor.exe

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

Executes dropped EXE 2 IoCs

Processes:

evmanoor.exeevmanoor.exe

pid process

4012 evmanoor.exe
1696 evmanoor.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

evmanoor.exe

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

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

evmanoor.exe

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

Drops file in System32 directory 9 IoCs

Processes:

171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exeevmanoor.exe

description	ioc	process
File created	C:\Windows\SysWOW64\evmanoor.exe	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe
File opened for modification	C:\Windows\SysWOW64\evrooxeap-useab.exe	evmanoor.exe
File opened for modification	C:\Windows\SysWOW64\onkeavoam.exe	evmanoor.exe
File opened for modification	C:\Windows\SysWOW64\evmanoor.exe	evmanoor.exe
File opened for modification	C:\Windows\SysWOW64\evmanoor.exe	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe
File created	C:\Windows\SysWOW64\onkeavoam.exe	evmanoor.exe
File opened for modification	C:\Windows\SysWOW64\ixfixan-oufor.dll	evmanoor.exe
File created	C:\Windows\SysWOW64\ixfixan-oufor.dll	evmanoor.exe
File created	C:\Windows\SysWOW64\evrooxeap-useab.exe	evmanoor.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

evmanoor.exeevmanoor.exe

pid	process
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
1696	evmanoor.exe
1696	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe
4012	evmanoor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exeevmanoor.exe

description	pid	process
Token: SeDebugPrivilege	4376	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe
Token: SeDebugPrivilege	4012	evmanoor.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exeevmanoor.exe

description	pid	process	target process
PID 4376 wrote to memory of 4012	4376	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe	evmanoor.exe
PID 4376 wrote to memory of 4012	4376	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe	evmanoor.exe
PID 4376 wrote to memory of 4012	4376	171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe	evmanoor.exe
PID 4012 wrote to memory of 1696	4012	evmanoor.exe	evmanoor.exe
PID 4012 wrote to memory of 1696	4012	evmanoor.exe	evmanoor.exe
PID 4012 wrote to memory of 1696	4012	evmanoor.exe	evmanoor.exe
PID 4012 wrote to memory of 624	4012	evmanoor.exe	winlogon.exe
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE
PID 4012 wrote to memory of 3508	4012	evmanoor.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:624

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3508
- C:\Users\Admin\AppData\Local\Temp\171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe
  "C:\Users\Admin\AppData\Local\Temp\171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Windows\SysWOW64\evmanoor.exe
    "C:\Windows\system32\evmanoor.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:4012
  - - C:\Windows\SysWOW64\evmanoor.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\evmanoor.exe

Filesize
70KB

MD5
3a5c8e20a6605099b772ed85343f5be6

SHA1
4d47584ed91f7149f96fb5341c6e230cefed9161

SHA256
171c213f489a9dd54b5fc5091087066b53b84fb2f8be9d62061c9eb2ba884e95

SHA512
e9c005dad6243ed72066ce7660250b5b3cd079d78e9f394aa626131f5f27e12bc946cc2317628b0d9e809d8e23d7bb0947924f14e12942ae45945c0f9a87fe42

Download Submit
C:\Windows\SysWOW64\evrooxeap-useab.exe

Filesize
73KB

MD5
d8d0529d031d9a7424102a711c562c53

SHA1
ab9ef418f19978f7b8b7eebe420df53171f6e431

SHA256
ce2732b825389fd0cc5e4d009b15cada470388b3b282ad1b4a6a030df42d71e2

SHA512
ccef07bd87cec7e09b695a83b2bd999ab66487d8a5a6c3d52a02208006e15b68af5cb13b21152e0631f61d7570463b74ef99d669dbc097a9d447108240aa9e3f

Download Submit
C:\Windows\SysWOW64\ixfixan-oufor.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

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

Filesize
72KB

MD5
3c2181dc0d485344f182ba379b454432

SHA1
fc58e15bfa86fea899b550ac35ad203f85831ec3

SHA256
ad400baa8deb18a4b9bc8f81d6b01ed0e6a0b9dd7624e4cfc157b72b4c42111c

SHA512
5a705f599b2275104da07a15d4564afad57955048e7a47419664508be9e07cf17a8a9c899dac2fe0c0448ae6543c9d4df9ac4510da807ed73c1510fb32ccb08a

Download Submit
memory/1696-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4012-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4376-6-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads