a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529

General

Target

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe
Size

40KB
MD5

1b20fe5b213d3bbfe6da750f334abee1
SHA1

daa7690c7c63b1c8f653c2df3c09e901568a92ad
SHA256

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529
SHA512

29d5c9698aab9f1cfffb0b5a19e1cdd968b08e5538d918e0c8bc61f7f1b2592111096ba8bc2ee71d3c7c32c08e3a88f5d80c488ee3197825ef8242d8608c0096
SSDEEP

768:/8g7pNf+yHOPz5zlcVu8xqUOR+DhFuraJNfF5mbExE1u0kK2PrxBryo2qG5:/NduPzIXqUOR+1FuraJNfF5mbEWI0kKt

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1992 takeown.exe
1744 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1992 takeown.exe
1744 icacls.exe

pid	process
1992	takeown.exe
1744	icacls.exe

pid	process
1992	takeown.exe
1744	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Epl = "C:\\Windows\\system32\\lebbu.exe"	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

Drops file in System32 directory 2 IoCs

Processes:

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

description	ioc	process
File created	C:\Windows\SysWOW64\lebbu.exe	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe
File opened for modification	C:\Windows\SysWOW64\lebbu.exe	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

Processes:

regini.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	regini.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://www.zhuangxiu008.com/"	regini.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Main	regini.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Default_Page_URL = "http://www.zhuangxiu008.com/"	regini.exe

Modifies Internet Explorer start page 1 TTPs 2 IoCs

stealer

Modify Registry

T1112

Processes:

regini.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.zhuangxiu008.com/"	regini.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Start Page = "http://www.zhuangxiu008.com/"	regini.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

pid process

1996 a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

pid	process
1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe

description	pid	process	target process
PID 1996 wrote to memory of 1992	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	takeown.exe
PID 1996 wrote to memory of 1992	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	takeown.exe
PID 1996 wrote to memory of 1992	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	takeown.exe
PID 1996 wrote to memory of 1992	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	takeown.exe
PID 1996 wrote to memory of 1744	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	icacls.exe
PID 1996 wrote to memory of 1744	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	icacls.exe
PID 1996 wrote to memory of 1744	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	icacls.exe
PID 1996 wrote to memory of 1744	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	icacls.exe
PID 1996 wrote to memory of 1504	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	regini.exe
PID 1996 wrote to memory of 1504	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	regini.exe
PID 1996 wrote to memory of 1504	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	regini.exe
PID 1996 wrote to memory of 1504	1996	a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe	regini.exe

C:\Users\Admin\AppData\Local\Temp\a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe
"C:\Users\Admin\AppData\Local\Temp\a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\lebbu.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1992

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\lebbu.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1744

C:\Windows\SysWOW64\regini.exe
C:\Windows\system32\\regini.exe "C:\Users\Admin\AppData\Local\Temp\TMwUOE.ini"
2⤵
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:1504

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

1

T1222

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\TMwUOE.ini
Filesize
633B

MD5
307edf4a3258717302e3d2ba7865ec69

SHA1
faa9b10078b3ee200bea0cb2645157843a8e4908

SHA256
bc4f3fa5dc6d89b482f4f09363cf82b6c6500b853b4d5fe3c589c4dc6601bf9a

SHA512
dfaa7e643e0c477701cce3de1aba8d506a1063d72547d760bcc76c274dd9069ad6529dfe341ff4202a8d50aabaa712db4c76928cc455fefb3f1601cf85558715

Download Submit
C:\Windows\SysWOW64\lebbu.exe
Filesize
40KB

MD5
1b20fe5b213d3bbfe6da750f334abee1

SHA1
daa7690c7c63b1c8f653c2df3c09e901568a92ad

SHA256
a87678e44b0d9290cd685fb75a270192b1bcb2179e02b52b0f34b193256e2529

SHA512
29d5c9698aab9f1cfffb0b5a19e1cdd968b08e5538d918e0c8bc61f7f1b2592111096ba8bc2ee71d3c7c32c08e3a88f5d80c488ee3197825ef8242d8608c0096

Download Submit
memory/1504-59-0x0000000000000000-mapping.dmp

Download
memory/1744-57-0x0000000000000000-mapping.dmp

Download
memory/1992-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads