c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e

General

Target

c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
Size

70KB
MD5

f1814993078ced5d7f8119e225f6b53d
SHA1

b8e5228026f384cf2a346334adeb7c0f5854e576
SHA256

c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e
SHA512

fbdd1afd9f9a6d595f9817f9f04df3b7b0887e57c8d91f216de1c5c7340ea3025abe2c56e1885afdf36566eca1868ac8ca8a866d3ef3dee1bf40186d2d5bc266
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8B:Olg35GTslA5t3/w8B

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:

ulcoxoox.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	ulcoxoox.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ulcoxoox.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}	ulcoxoox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\IsInstalled = "1"	ulcoxoox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\StubPath = "C:\\Windows\\system32\\acmihoac-oudum.exe"	ulcoxoox.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ulcoxoox.exe

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

Executes dropped EXE 2 IoCs

Processes:

ulcoxoox.exeulcoxoox.exe

pid process

1676 ulcoxoox.exe
2360 ulcoxoox.exe

Loads dropped DLL 3 IoCs

Processes:

c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exeulcoxoox.exe

pid	process
2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
1676	ulcoxoox.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

ulcoxoox.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	ulcoxoox.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ulcoxoox.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

ulcoxoox.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	ulcoxoox.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	ulcoxoox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	ulcoxoox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\uknuboav-ucat.dll"	ulcoxoox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	ulcoxoox.exe

Drops file in System32 directory 9 IoCs

Processes:

ulcoxoox.exec54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\uknuboav-ucat.dll	ulcoxoox.exe
File created	C:\Windows\SysWOW64\uknuboav-ucat.dll	ulcoxoox.exe
File opened for modification	C:\Windows\SysWOW64\ulcoxoox.exe	ulcoxoox.exe
File opened for modification	C:\Windows\SysWOW64\eamdisah-ocid.exe	ulcoxoox.exe
File opened for modification	C:\Windows\SysWOW64\acmihoac-oudum.exe	ulcoxoox.exe
File created	C:\Windows\SysWOW64\eamdisah-ocid.exe	ulcoxoox.exe
File created	C:\Windows\SysWOW64\acmihoac-oudum.exe	ulcoxoox.exe
File opened for modification	C:\Windows\SysWOW64\ulcoxoox.exe	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
File created	C:\Windows\SysWOW64\ulcoxoox.exe	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ulcoxoox.exeulcoxoox.exe

pid	process
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
2360	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe
1676	ulcoxoox.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exeulcoxoox.exe

description	pid	process
Token: SeDebugPrivilege	2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
Token: SeDebugPrivilege	1676	ulcoxoox.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exeulcoxoox.exe

description	pid	process	target process
PID 2236 wrote to memory of 1676	2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe	ulcoxoox.exe
PID 2236 wrote to memory of 1676	2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe	ulcoxoox.exe
PID 2236 wrote to memory of 1676	2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe	ulcoxoox.exe
PID 2236 wrote to memory of 1676	2236	c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe	ulcoxoox.exe
PID 1676 wrote to memory of 420	1676	ulcoxoox.exe	winlogon.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2360	1676	ulcoxoox.exe	ulcoxoox.exe
PID 1676 wrote to memory of 2360	1676	ulcoxoox.exe	ulcoxoox.exe
PID 1676 wrote to memory of 2360	1676	ulcoxoox.exe	ulcoxoox.exe
PID 1676 wrote to memory of 2360	1676	ulcoxoox.exe	ulcoxoox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 2416	1676	ulcoxoox.exe	firefox.exe
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE
PID 1676 wrote to memory of 1212	1676	ulcoxoox.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212

C:\Users\Admin\AppData\Local\Temp\c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe
"C:\Users\Admin\AppData\Local\Temp\c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236

C:\Windows\SysWOW64\ulcoxoox.exe
"C:\Windows\system32\ulcoxoox.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:1676

C:\Windows\SysWOW64\ulcoxoox.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2360

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
1⤵
PID:2416

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\SysWOW64\acmihoac-oudum.exe
Filesize
72KB

MD5
757835ef9cab6fa01b8aa1b9c60e4ab1

SHA1
c30031b5ffd7264f96552c7e709e67d719a5a560

SHA256
410af001e293bba1fde63c340fd026f9edca2070953687d1527cbb1b9c8fc2a3

SHA512
6aad4cfe0b4a1816fff63087136820555486c7ca10551383bd3a21fbd033f0777b490c3a4f94b5e2a96670ba4e34fb9fb0b963b64307588a38f1f7ea9697feb4

Download Submit
C:\Windows\SysWOW64\eamdisah-ocid.exe
Filesize
73KB

MD5
ec8c335cf6d41e099c2dabd991e7aa4d

SHA1
61ed1778c29a5e77dc7f420bceb076233e6563c9

SHA256
e56152971d0143dcc8a5506dbd0c748560b2cfdbc1a0fab11fac5c1d5efd6e2c

SHA512
69c5d83e3fc0376a10498d3735d4f3ab8adb5c17a6bbe4bd89a2e19cd6a1e065ecdf519454ac4f6402427490bba9636f69942bca1842c78f602fac6743f4c8b8

Download Submit
C:\Windows\SysWOW64\uknuboav-ucat.dll
Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
\Windows\SysWOW64\ulcoxoox.exe
Filesize
70KB

MD5
f1814993078ced5d7f8119e225f6b53d

SHA1
b8e5228026f384cf2a346334adeb7c0f5854e576

SHA256
c54dccb938b79eec44e9fee6fd7810dfe98905135e5e02c6eaee39889b9d850e

SHA512
fbdd1afd9f9a6d595f9817f9f04df3b7b0887e57c8d91f216de1c5c7340ea3025abe2c56e1885afdf36566eca1868ac8ca8a866d3ef3dee1bf40186d2d5bc266

Download Submit
memory/1676-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2360-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads