a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571

Analysis

max time kernel
149s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21/11/2024, 04:00

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General

Target

a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
Size

81KB
MD5

82fc9b3db62711ab7a4dd1d0c51b4f0e
SHA1

58a25c31f53d72ef0ee9367c3348c002761fef0f
SHA256

a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571
SHA512

a9b5f5dfceca08b11913194a0961f871b5927bac9908cdf15d2990f6fcc94fb51773170816cfce446d28d332b29e4516920922454df693a991b01be4a2105e8e
SSDEEP

1536:BteqGDlXvCDB04f5Gn/L8ZlALNtnd17i9wl:Olg35GTclABtnDi9wl

Score

10^/10

defense_evasion discovery 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"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ulxacen-udix.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{58454355-444e-4344-5845-4355444E4344}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{58454355-444e-4344-5845-4355444E4344}\IsInstalled = "1"	ulxacen-udix.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{58454355-444e-4344-5845-4355444E4344}\StubPath = "C:\\Windows\\system32\\ubpahooc.exe"	ulxacen-udix.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{58454355-444e-4344-5845-4355444E4344}	ulxacen-udix.exe

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs

persistence

Image File Execution Options Injection

T1546.012

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

Executes dropped EXE 2 IoCs

pid	Process
2772	ulxacen-udix.exe
2780	ulxacen-udix.exe

Loads dropped DLL 3 IoCs

pid	Process
2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
2772	ulxacen-udix.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"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	ulxacen-udix.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ulxacen-udix.exe

Indicator Removal: Clear Persistence 1 TTPs 1 IoCs

remove IFEO.

defense_evasion

Clear Persistence

T1070.009

description	ioc	Process
Delete value	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger	ulxacen-udix.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}	ulxacen-udix.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	ulxacen-udix.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	ulxacen-udix.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\ealfoonoag.dll"	ulxacen-udix.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	ulxacen-udix.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ealfoonoag.dll	ulxacen-udix.exe
File opened for modification	C:\Windows\SysWOW64\ulxacen-udix.exe	ulxacen-udix.exe
File created	C:\Windows\SysWOW64\ulxacen-udix.exe	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
File opened for modification	C:\Windows\SysWOW64\ilsusud.exe	ulxacen-udix.exe
File opened for modification	C:\Windows\SysWOW64\ubpahooc.exe	ulxacen-udix.exe
File opened for modification	C:\Windows\SysWOW64\ealfoonoag.dll	ulxacen-udix.exe
File opened for modification	C:\Windows\SysWOW64\ulxacen-udix.exe	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
File created	C:\Windows\SysWOW64\ilsusud.exe	ulxacen-udix.exe
File created	C:\Windows\SysWOW64\ubpahooc.exe	ulxacen-udix.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ulxacen-udix.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2780	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe
2772	ulxacen-udix.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
Token: SeDebugPrivilege	2772	ulxacen-udix.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2772	2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe	30
PID 2636 wrote to memory of 2772	2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe	30
PID 2636 wrote to memory of 2772	2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe	30
PID 2636 wrote to memory of 2772	2636	a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe	30
PID 2772 wrote to memory of 424	2772	ulxacen-udix.exe	5
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 2780	2772	ulxacen-udix.exe	31
PID 2772 wrote to memory of 2780	2772	ulxacen-udix.exe	31
PID 2772 wrote to memory of 2780	2772	ulxacen-udix.exe	31
PID 2772 wrote to memory of 2780	2772	ulxacen-udix.exe	31
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21
PID 2772 wrote to memory of 1244	2772	ulxacen-udix.exe	21

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:424

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1244
- C:\Users\Admin\AppData\Local\Temp\a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe
  "C:\Users\Admin\AppData\Local\Temp\a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\ulxacen-udix.exe
    "C:\Windows\system32\ulxacen-udix.exe"
    3⤵
    - Windows security bypass
    - Boot or Logon Autostart Execution: Active Setup
    - Event Triggered Execution: Image File Execution Options Injection
    - Executes dropped EXE
    - Loads dropped DLL
    - Windows security modification
    - Indicator Removal: Clear Persistence
    - Modifies WinLogon
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2772
  - - C:\Windows\SysWOW64\ulxacen-udix.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

Clear Persistence

T1070.009

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\ealfoonoag.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

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

Filesize
84KB

MD5
d683aa3bdcef737792c1762a84ac57a6

SHA1
d1f0fce201d888eef2c98657f78f0ad478a5c265

SHA256
d4a6ad2659f3568498450260cde8b0a282832312966363de6ed69aa7922a9f2f

SHA512
a447ff225bb8f0bcca9336e69f18bbe0602a22b68b61b4fdb6c6df42990b0cf7713573dbc63f2a23940dec8cd1bf9864fcb94642034f61b7719edc8e69b8a096

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

Filesize
83KB

MD5
e49c88754e567728d12b499e71a74868

SHA1
132ec465ace3a006a4c0e27ff966cb5221524a47

SHA256
2cbf08455f455b8848a159c2a41766d0f5c766cd611335f5fc9742ef4d76fc30

SHA512
3502b2186202364303e8e79decac03d2ca5209daaf17750f9b1f1e5202d59d8526162ed055a34ca39f95cfc39b0f61b591c0b0bc8499281da94520efc31139bf

Download Submit
\Windows\SysWOW64\ulxacen-udix.exe

Filesize
81KB

MD5
82fc9b3db62711ab7a4dd1d0c51b4f0e

SHA1
58a25c31f53d72ef0ee9367c3348c002761fef0f

SHA256
a54efbb811ae888e3498d28d2d290e12b9217a072fb12344ea8191b9d4285571

SHA512
a9b5f5dfceca08b11913194a0961f871b5927bac9908cdf15d2990f6fcc94fb51773170816cfce446d28d332b29e4516920922454df693a991b01be4a2105e8e

Download Submit
memory/2636-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2772-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2780-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download