738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec

Analysis

max time kernel
34s
max time network
42s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-11-2022 23:42

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General

Target

738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe
Size

72KB
MD5

0523877c4a35b31b83ed89f02709f550
SHA1

203e66c8236287fa259d82806ef18f217efedc02
SHA256

738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec
SHA512

d2d380bca2fd249a8e50e2cba20419b78a65607325c7259671fa4bcdb68817bd3d6c9a7e0169bb72ebd02a47fdf0d37747ac3307bdcdf1a2abbe6b30419c8654
SSDEEP

1536:8KIXt6+UbOK/X51l6A2OG3rO23VIU/YuuVSQ3cAH:htbOgb2J3a23VIU/YuK3V

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1964 takeown.exe
1744 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1964 takeown.exe
1744 icacls.exe

pid	process
1964	takeown.exe
1744	icacls.exe

pid	process
1964	takeown.exe
1744	icacls.exe

Drops file in System32 directory 2 IoCs

Processes:

738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

description	ioc	process
File created	C:\Windows\SysWOW64\jfjs.exe	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe
File opened for modification	C:\Windows\SysWOW64\jfjs.exe	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

pid process

1976 738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

pid	process
1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe

description	pid	process	target process
PID 1976 wrote to memory of 1964	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	takeown.exe
PID 1976 wrote to memory of 1964	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	takeown.exe
PID 1976 wrote to memory of 1964	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	takeown.exe
PID 1976 wrote to memory of 1964	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	takeown.exe
PID 1976 wrote to memory of 1744	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	icacls.exe
PID 1976 wrote to memory of 1744	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	icacls.exe
PID 1976 wrote to memory of 1744	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	icacls.exe
PID 1976 wrote to memory of 1744	1976	738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe
"C:\Users\Admin\AppData\Local\Temp\738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\jfjs.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1964

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

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\jfjs.exe
Filesize
72KB

MD5
0523877c4a35b31b83ed89f02709f550

SHA1
203e66c8236287fa259d82806ef18f217efedc02

SHA256
738b8c86d83125e0c10d9b9a8ab36e46bff21735d507de043eeb7cd0fab924ec

SHA512
d2d380bca2fd249a8e50e2cba20419b78a65607325c7259671fa4bcdb68817bd3d6c9a7e0169bb72ebd02a47fdf0d37747ac3307bdcdf1a2abbe6b30419c8654

Download Submit
memory/1744-59-0x0000000000000000-mapping.dmp

Download
memory/1964-57-0x0000000000000000-mapping.dmp

Download
memory/1976-56-0x00000000754E1000-0x00000000754E3000-memory.dmp

Filesize
8KB

Download