40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f

General

Target

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe
Size

40KB
MD5

638b381cde37f3f633f4fe0efeb97691
SHA1

30623b22167fae3e1f7bef8de83ef67a2c685cbb
SHA256

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f
SHA512

c072f033cddddd9e02932cb116828b4062c5fc9b702cc3e9f1ade2b0ecd95258e1e100d1ca4ae7633d8298c67bbc284c73a0d749c036034c2488fb356ecfbd0b
SSDEEP

768:/q5uNaY7HHG8wCVk9dhhMep41ZLLBV/UE:/q5h4Hkh2BVcE

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

952 takeown.exe
904 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

952 takeown.exe
904 icacls.exe

pid	process
952	takeown.exe
904	icacls.exe

pid	process
952	takeown.exe
904	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KTMS = "C:\\Windows\\system32\\krce.exe"	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

Drops file in System32 directory 2 IoCs

Processes:

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

description	ioc	process
File created	C:\Windows\SysWOW64\krce.exe	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe
File opened for modification	C:\Windows\SysWOW64\krce.exe	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	regini.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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-1-5-21-4063495947-34355257-727531523-1000\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:

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

pid process

1168 40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

pid	process
1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe

description	pid	process	target process
PID 1168 wrote to memory of 952	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	takeown.exe
PID 1168 wrote to memory of 952	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	takeown.exe
PID 1168 wrote to memory of 952	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	takeown.exe
PID 1168 wrote to memory of 952	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	takeown.exe
PID 1168 wrote to memory of 904	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	icacls.exe
PID 1168 wrote to memory of 904	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	icacls.exe
PID 1168 wrote to memory of 904	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	icacls.exe
PID 1168 wrote to memory of 904	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	icacls.exe
PID 1168 wrote to memory of 1476	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	regini.exe
PID 1168 wrote to memory of 1476	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	regini.exe
PID 1168 wrote to memory of 1476	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	regini.exe
PID 1168 wrote to memory of 1476	1168	40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe	regini.exe

C:\Users\Admin\AppData\Local\Temp\40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe
"C:\Users\Admin\AppData\Local\Temp\40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\krce.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:952

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\krce.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:904

C:\Windows\SysWOW64\regini.exe
C:\Windows\system32\\regini.exe "C:\Users\Admin\AppData\Local\Temp\MUQJRzH.ini"
2⤵
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:1476

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\MUQJRzH.ini
Filesize
633B

MD5
307edf4a3258717302e3d2ba7865ec69

SHA1
faa9b10078b3ee200bea0cb2645157843a8e4908

SHA256
bc4f3fa5dc6d89b482f4f09363cf82b6c6500b853b4d5fe3c589c4dc6601bf9a

SHA512
dfaa7e643e0c477701cce3de1aba8d506a1063d72547d760bcc76c274dd9069ad6529dfe341ff4202a8d50aabaa712db4c76928cc455fefb3f1601cf85558715

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

MD5
638b381cde37f3f633f4fe0efeb97691

SHA1
30623b22167fae3e1f7bef8de83ef67a2c685cbb

SHA256
40b9a0d07a122dff54576a26ea3833bf532f93a8404942a6b32e6cc2e240594f

SHA512
c072f033cddddd9e02932cb116828b4062c5fc9b702cc3e9f1ade2b0ecd95258e1e100d1ca4ae7633d8298c67bbc284c73a0d749c036034c2488fb356ecfbd0b

Download Submit
memory/904-57-0x0000000000000000-mapping.dmp

Download
memory/952-56-0x0000000000000000-mapping.dmp

Download
memory/1476-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads