4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364

General

Target

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe
Size

40KB
MD5

45912c71b0f297a8a201489ab87efd51
SHA1

5e51fd91a402e52ea88374dbd9c98ca25301cf06
SHA256

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364
SHA512

577823a06ca326aec86dc104aad32e088cdcfac86f8bb595faf3ba77b6468d2c30fbdf6b277c9856859cd617cbe53154dc0e87527fe14c0efa8eb6d3a0763abe
SSDEEP

768:/xvtPCm18EKGhGrWAA4UiAK1UZVewS2CI+UhWn:/xlkEN0TBURKeZqUhWn

Score

8^/10

discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

4904 takeown.exe
1628 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

4904 takeown.exe
1628 icacls.exe

pid	process
4904	takeown.exe
1628	icacls.exe

pid	process
4904	takeown.exe
1628	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\hFFy = "C:\\Windows\\system32\\vfuvg.exe"	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

Drops file in System32 directory 2 IoCs

Processes:

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

description	ioc	process
File created	C:\Windows\SysWOW64\vfuvg.exe	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe
File opened for modification	C:\Windows\SysWOW64\vfuvg.exe	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

Processes:

regini.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Start Page = "http://www.zhuangxiu008.com/"	regini.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.zhuangxiu008.com/"	regini.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

pid process

3112 4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

pid	process
3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe

description	pid	process	target process
PID 3112 wrote to memory of 4904	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	takeown.exe
PID 3112 wrote to memory of 4904	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	takeown.exe
PID 3112 wrote to memory of 4904	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	takeown.exe
PID 3112 wrote to memory of 1628	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	icacls.exe
PID 3112 wrote to memory of 1628	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	icacls.exe
PID 3112 wrote to memory of 1628	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	icacls.exe
PID 3112 wrote to memory of 4580	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	regini.exe
PID 3112 wrote to memory of 4580	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	regini.exe
PID 3112 wrote to memory of 4580	3112	4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe	regini.exe

C:\Users\Admin\AppData\Local\Temp\4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe
"C:\Users\Admin\AppData\Local\Temp\4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3112

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\vfuvg.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4904

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\vfuvg.exe" /grant Users:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1628

C:\Windows\SysWOW64\regini.exe
C:\Windows\system32\\regini.exe "C:\Users\Admin\AppData\Local\Temp\EZvkpJF.ini"
2⤵
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:4580

Network

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\EZvkpJF.ini
Filesize
633B

MD5
307edf4a3258717302e3d2ba7865ec69

SHA1
faa9b10078b3ee200bea0cb2645157843a8e4908

SHA256
bc4f3fa5dc6d89b482f4f09363cf82b6c6500b853b4d5fe3c589c4dc6601bf9a

SHA512
dfaa7e643e0c477701cce3de1aba8d506a1063d72547d760bcc76c274dd9069ad6529dfe341ff4202a8d50aabaa712db4c76928cc455fefb3f1601cf85558715

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

MD5
45912c71b0f297a8a201489ab87efd51

SHA1
5e51fd91a402e52ea88374dbd9c98ca25301cf06

SHA256
4e89c8a9494171fc45ab9d4142957660dfe4bc0c45ebbc6b4a96ff85e16bb364

SHA512
577823a06ca326aec86dc104aad32e088cdcfac86f8bb595faf3ba77b6468d2c30fbdf6b277c9856859cd617cbe53154dc0e87527fe14c0efa8eb6d3a0763abe

Download Submit
memory/1628-135-0x0000000000000000-mapping.dmp

Download
memory/4580-137-0x0000000000000000-mapping.dmp

Download
memory/4904-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads