58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-11-2022 23:47

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General

Target

58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe
Size

64KB
MD5

0cff37058f2e0aaeb0d1234ba2fd1761
SHA1

3b0120363a5325839bc50703588a5b7dc094f419
SHA256

58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63
SHA512

3196307329bff89c3aa20a1e0443a4422164c08ab260488f27eee6c54646f57c39b088d4a245d0710df0a68ff2dfb3707a5798f410437c0ce0cbb3cb95c64df4
SSDEEP

768:pgWCiGePXS9l5yxB90WwKA4aln9xWBixQX2I9NhXL:pp8Ni6WwN4aR9EBie5zL

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1296 takeown.exe
1668 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1296 takeown.exe
1668 icacls.exe

pid	process
1296	takeown.exe
1668	icacls.exe

pid	process
1296	takeown.exe
1668	icacls.exe

Drops file in System32 directory 2 IoCs

Processes:

58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

description	ioc	process
File created	C:\Windows\SysWOW64\kpvkn.exe	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe
File opened for modification	C:\Windows\SysWOW64\kpvkn.exe	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

pid process

1052 58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

pid	process
1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe

description	pid	process	target process
PID 1052 wrote to memory of 1296	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	takeown.exe
PID 1052 wrote to memory of 1296	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	takeown.exe
PID 1052 wrote to memory of 1296	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	takeown.exe
PID 1052 wrote to memory of 1296	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	takeown.exe
PID 1052 wrote to memory of 1668	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	icacls.exe
PID 1052 wrote to memory of 1668	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	icacls.exe
PID 1052 wrote to memory of 1668	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	icacls.exe
PID 1052 wrote to memory of 1668	1052	58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe	icacls.exe

C:\Users\Admin\AppData\Local\Temp\58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe
"C:\Users\Admin\AppData\Local\Temp\58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1052

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /f "C:\Windows\system32\kpvkn.exe"
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1296

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe "C:\Windows\system32\kpvkn.exe" /grant SYSTEM:F
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1668

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\kpvkn.exe
Filesize
64KB

MD5
0cff37058f2e0aaeb0d1234ba2fd1761

SHA1
3b0120363a5325839bc50703588a5b7dc094f419

SHA256
58e9741c7919f4742950fabe825851bb90b720a960e2865daf5466039150cb63

SHA512
3196307329bff89c3aa20a1e0443a4422164c08ab260488f27eee6c54646f57c39b088d4a245d0710df0a68ff2dfb3707a5798f410437c0ce0cbb3cb95c64df4

Download Submit
memory/1052-56-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1296-57-0x0000000000000000-mapping.dmp

Download
memory/1668-59-0x0000000000000000-mapping.dmp

Download