ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16-05-2024 05:00

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General

Target

ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
Size

70KB
MD5

7340b39ee7064e95d74abb427811e444
SHA1

21efc49169c2586fcb24681ea274b82ff6dd16d6
SHA256

ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04
SHA512

6e55c51a9e18290427fcc29b4beceaed9a22c69f0dded32438884cbbf1f89885caea4f6c095284d0e309280fdc96b9545d887ee1a7a66fff0823049ed5231b99
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw83:Olg35GTslA5t3/w83

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\AntiVirusOverride = "25600"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	pvokoaf.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\{554F5448-4350-4851-554F-544843504851}\StubPath = "C:\\Windows\\system32\\ebgeaguc-ucom.exe"	pvokoaf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}	pvokoaf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{554F5448-4350-4851-554F-544843504851}\IsInstalled = "1"	pvokoaf.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\Debugger = "C:\\Windows\\system32\\eavkeavoas-ereas.exe"	pvokoaf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	pvokoaf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	pvokoaf.exe

Executes dropped EXE 2 IoCs

pid	Process
2272	pvokoaf.exe
2808	pvokoaf.exe

Loads dropped DLL 3 IoCs

pid	Process
1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
2272	pvokoaf.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"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	pvokoaf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	pvokoaf.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}	pvokoaf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	pvokoaf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	pvokoaf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\eahxoguf-eadat.dll"	pvokoaf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	pvokoaf.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\eahxoguf-eadat.dll	pvokoaf.exe
File created	C:\Windows\SysWOW64\eahxoguf-eadat.dll	pvokoaf.exe
File opened for modification	C:\Windows\SysWOW64\pvokoaf.exe	pvokoaf.exe
File opened for modification	C:\Windows\SysWOW64\pvokoaf.exe	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
File opened for modification	C:\Windows\SysWOW64\ebgeaguc-ucom.exe	pvokoaf.exe
File created	C:\Windows\SysWOW64\eavkeavoas-ereas.exe	pvokoaf.exe
File created	C:\Windows\SysWOW64\ebgeaguc-ucom.exe	pvokoaf.exe
File created	C:\Windows\SysWOW64\pvokoaf.exe	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
File opened for modification	C:\Windows\SysWOW64\eavkeavoas-ereas.exe	pvokoaf.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2808	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe
2272	pvokoaf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
Token: SeDebugPrivilege	2272	pvokoaf.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 2272	1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe	28
PID 1192 wrote to memory of 2272	1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe	28
PID 1192 wrote to memory of 2272	1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe	28
PID 1192 wrote to memory of 2272	1192	ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe	28
PID 2272 wrote to memory of 428	2272	pvokoaf.exe	5
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 2808	2272	pvokoaf.exe	29
PID 2272 wrote to memory of 2808	2272	pvokoaf.exe	29
PID 2272 wrote to memory of 2808	2272	pvokoaf.exe	29
PID 2272 wrote to memory of 2808	2272	pvokoaf.exe	29
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21
PID 2272 wrote to memory of 1200	2272	pvokoaf.exe	21

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:428

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe
  "C:\Users\Admin\AppData\Local\Temp\ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\SysWOW64\pvokoaf.exe
    "C:\Windows\system32\pvokoaf.exe"
    3⤵
    - Windows security bypass
    - Modifies Installed Components in the registry
    - Sets file execution options in registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Windows security modification
    - Modifies WinLogon
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2272
  - - C:\Windows\SysWOW64\pvokoaf.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2808

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\eahxoguf-eadat.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\eavkeavoas-ereas.exe

Filesize
73KB

MD5
b228efb3724bbee04c6733a52dc8a23b

SHA1
b9bf5fb3b042b571ac3b149e51fbbab4b3c562b3

SHA256
c5ff1691b872d11bc1dada0440d66c090a2745e6c2b00b6e7614a8956e3f1df0

SHA512
9a9167b7f6726b2622ab3c4085b06214f3d448b8e8e2f5150a3a68cfffe34df46f884676af1b72c515f824017b4c5b70670a6d9f66c0ca2996abd2ba9dfc765d

Download Submit
C:\Windows\SysWOW64\ebgeaguc-ucom.exe

Filesize
72KB

MD5
5a283775c061a757c64fc2474f81151d

SHA1
d4d1ac6e5daa2d0f3367442debf7742c25a20866

SHA256
9456a41905437aa263ef175146801394d7a73058de285aba542698a95a728171

SHA512
9f9b494426c6790157c132820999cda360fb226ba06cc47338a957277a835dedb76a601580c042ca056d935a0394e1642da39af2a4dfe479ba20459b8067d08f

Download Submit
\Windows\SysWOW64\pvokoaf.exe

Filesize
70KB

MD5
7340b39ee7064e95d74abb427811e444

SHA1
21efc49169c2586fcb24681ea274b82ff6dd16d6

SHA256
ed7a0e3a3148469b9895bca2dc3c238f2fe755e91181d6e9fc8f740b980f5f04

SHA512
6e55c51a9e18290427fcc29b4beceaed9a22c69f0dded32438884cbbf1f89885caea4f6c095284d0e309280fdc96b9545d887ee1a7a66fff0823049ed5231b99

Download Submit
memory/1192-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2272-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2808-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download